CN107360668A - A kind of anti-electromagnetic interference circuit plate and touch-screen - Google Patents
A kind of anti-electromagnetic interference circuit plate and touch-screen Download PDFInfo
- Publication number
- CN107360668A CN107360668A CN201710570416.0A CN201710570416A CN107360668A CN 107360668 A CN107360668 A CN 107360668A CN 201710570416 A CN201710570416 A CN 201710570416A CN 107360668 A CN107360668 A CN 107360668A
- Authority
- CN
- China
- Prior art keywords
- circuit
- electromagnetic interference
- circuit plate
- digitally
- base board
- 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.)
- Pending
Links
- 238000007639 printing Methods 0.000 claims abstract description 30
- 238000004088 simulation Methods 0.000 claims abstract description 25
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 238000005452 bending Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 2
- 230000001154 acute effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 108010076504 Protein Sorting Signals Proteins 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Classifications
-
- 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
- H05K1/0216—Reduction of cross-talk, noise or electromagnetic interference
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09218—Conductive traces
- H05K2201/09272—Layout details of angles or corners
-
- 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
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/09654—Shape and layout details of conductors covering at least two types of conductors provided for in H05K2201/09218 - H05K2201/095
- H05K2201/09672—Superposed layout, i.e. in different planes
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Electromagnetism (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a kind of anti-electromagnetic interference circuit plate, including PCB substrate, simulate ground circuit and digitally circuit, the PCB substrate includes multiple base board units, and the multiple base board unit is stacked, and the printing space for printed circuit is provided between two neighboring base board unit；Simulation ground circuit and digitally circuit may be contained within the base board unit, and simulate circuit and digitally circuit is respectively arranged in different printing spaces.The invention also discloses a kind of touch-screen, including described anti-electromagnetic interference circuit plate, in addition to contact panel, the contact panel is arranged at the top of the anti-electromagnetic interference circuit plate and communicated with anti-electromagnetic interference circuit plate and connected；The contact panel includes Touch Zone and blank screen area, and the upside of the anti-electromagnetic interference circuit plate is provided with multiple ground capacities in the region corresponding with the blank screen area.The circuit board and touch-screen of the present invention has higher antijamming capability.
Description
Technical field
The present invention relates to technical field of electronic equipment, more particularly to a kind of anti-electromagnetic interference circuit plate and touch-screen.
Background technology
As the application of each class of electronic devices is more and more extensive, the other equipment near it easily produces electromagnetism to it and done
Disturb.At present, the effective way for reducing electromagnetic interference or the raising anti-electromagnetic pollution ability of electronic equipment is set using Electro Magnetic Compatibility
Meter.In the prior art, circuit design such as Fig. 1 of a kind of typical electromagnetism interference, C1, C2 and C4, C5 and Lc are used to filter out
Common-mode noise, C3 and C6 are used to filter out differential mode noise.Output end can typically connect an electrochemical capacitor, also need to connect when load current is big
High frequency capacitance, for eliminating noise jamming of the load end to input.In the circuit design, analog signal and data signal printing
On the same layer of circuit board, it can not ensure digitally current limit in the data signal area of circuit board, interference simulation is not believed
Number, according to the mode of a determining deviation will be set between analog signal and data signal, due to the high-frequency by data signal
Limitation, can not still ensure that the two does not interfere with each other, therefore, analog signal and data signal how and to deposit design be always circuit board
The a great problem of design.
The content of the invention
The technical problems to be solved by the invention are：There is provided a kind of circuit board that can fully achieve electromagnetism interference and
Using the touch-screen of the anti-electromagnetic interference circuit plate, interfering with each other between analog signal and data signal is avoided.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention one is：
A kind of anti-electromagnetic interference circuit plate, including PCB substrate, simulation ground circuit and digitally circuit, the PCB substrate bag
Multiple base board units are included, the multiple base board unit is stacked, and is provided between two neighboring base board unit for printing
The printing space of circuit；Simulation ground circuit and digitally circuit may be contained within the base board unit, and simulate circuit
Digitally circuit is respectively arranged in different printing spaces.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention two is：
A kind of touch-screen, including above-mentioned anti-electromagnetic interference circuit plate, in addition to contact panel, the contact panel are set
Connection is communicated in the top of the anti-electromagnetic interference circuit plate and with anti-electromagnetic interference circuit plate；The contact panel includes touch-control
Area and blank screen area, the upside of the anti-electromagnetic interference circuit plate are provided with multiple ground connection in the region corresponding with the blank screen area
Electric capacity.
The beneficial effects of the present invention are：Multilager base plate unit is set, with making simulation circuit and digitally circuit separately divides
Plane that Wei Yu be not different, and between the two across base board unit, it is and existing it is possible to prevente effectively from electromagnetic interference occurs between the two
Having technology to compare has higher antijamming capability.
Brief description of the drawings
Fig. 1 is anti-electromagnetic interference circuit schematic diagram of the prior art；
Fig. 2 is the structural representation of the touch-screen of the embodiment of the present invention；
Label declaration：
1st, simulation ground circuit；2nd, digitally circuit；3rd, base board unit；4th, Touch Zone；5th, blank screen area；6th, ground capacity.
Embodiment
To describe the technology contents of the present invention, the objects and the effects in detail, below in conjunction with embodiment and coordinate attached
Figure is explained.
The design of most critical of the present invention is:Multiple printing spaces are formed between multiple base board units 3 that lamination is set, will
Simulate ground circuit 1 and digitally circuit 2 is respectively arranged in different printing spaces.
It refer to Fig. 2, a kind of anti-electromagnetic interference circuit plate, it is characterised in that including PCB substrate, the simulation ground sum of circuit 1
Word circuit 2, the PCB substrate include multiple base board units 3, the multiple base board unit 3 is stacked, and two neighboring base
The printing space for printed circuit is provided between Slab element 3；Simulation ground circuit 1 and digitally circuit 2 may be contained within
On the base board unit 3, and simulate ground circuit 1 and digitally circuit 2 is respectively arranged in different printing spaces.
It was found from foregoing description, the beneficial effects of the present invention are：Multilager base plate unit is set, with making simulation circuit sum
Word circuit be separately located at different planes respectively, and between the two across base board unit, it is possible to prevente effectively from sending out between the two
Raw electromagnetic interference, has higher antijamming capability compared with prior art.
Further, the number of the base board unit 3 is three, be provided between three laminar substrate units 3 first printing space and
Second printing space, the simulation ground circuit 1 and digitally circuit 2 are respectively arranged at the first printing space and the second printing is empty
Between.
Further, simulation ground circuit 1 and digitally circuit 2 is printed circuit.
Further, it is described simulation ground circuit 1 in and digitally circuit 2 includes multiple connecting lines, multiple connecting lines
Between at intervals of more than 0.2mm.
Seen from the above description, more than 0.2mm will be set between connecting line, can avoids sending out between connecting line
Raw electromagnetic interference.
Further, the bending angle of the connecting line bending part is more than 90 °.
Seen from the above description, the cabling angle of connecting line should avoid right angle and acute angle, because right angle and acute angle can all be made
Angled coupling part produces Inductance and Capacitance or magnetic field, so as to produce electromagnetic interference.
Further, in addition to multiple chips, the chip may be contained within the base board unit 3, between multiple chips
Communication connection；The threshold voltage and the output signal phase of signal sequence and connected chip of the output signal of each chip
Match somebody with somebody.
Seen from the above description, the threshold voltage of chip is main relevant with the metal-oxide-semiconductor of chip circumference use, including flat rubber belting electricity
Pressure, the pressure drop in SiO2 and semiconductor surface gesture.If the input of the threshold voltage of previous chip signal output and latter chip
Signal mismatches, then can produce electrical potential difference, so as to change the electric field and potential difference of two chips, cause magnetic interference.
Further, in addition to RC filter circuits, the RC filter circuits with the digitally circuit 2 and simulation circuit
1 is arranged in identical or different printing space.
Seen from the above description, RC filter circuits are simple, strong interference immunity, have preferable low frequency performance, are relatively applicable
In touch-screen field.
A kind of touch-screen, including anti-electromagnetic interference circuit plate, in addition to contact panel, the contact panel are arranged at described
The top of anti-electromagnetic interference circuit plate and with anti-electromagnetic interference circuit plate communicate connect；The contact panel includes the He of Touch Zone 4
Blank screen area 5, multiple ground connection electricity are provided with the region corresponding with the blank screen area 5 of the upside of the anti-electromagnetic interference circuit plate
Hold 6.
Seen from the above description, ground capacity, digitally circuit 2 and simulation ground circuit are respectively arranged at different substrates
On unit 3, on the premise of touch screen function is ensured, antijamming capability can further improve.
Further, the number of the ground capacity 6 is three, three ground capacities, the 6 parallel spaced set.
Embodiment one
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following examples are used for
Illustrate the present invention, but can not be used for limiting the scope of the present invention.
In the description of the invention, unless otherwise indicated, " multiple " are meant that two or more；Term " on ",
" under ", "left", "right", " interior ", " outer ", " front end ", " rear end ", " head ", the orientation of the instruction such as " afterbody " or position relationship be
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the present invention.In addition, term " first ", " second ", " the 3rd " etc. be only used for describe purpose, and it is not intended that instruction or
Imply relative importance.
In the description of the invention, it is necessary to which explanation, unless otherwise clearly defined and limited, term " connected ", " connects
Connect " it should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or it is integrally connected；It can be machine
Tool connects or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Fig. 2 is refer to, embodiments of the invention one are：A kind of touch-screen, including anti-electromagnetic interference circuit plate, and touch-screen
Component, the touch panel unit include contact panel, and the contact panel is arranged at the top of the anti-electromagnetic interference circuit plate
And communicate and connect with anti-electromagnetic interference circuit plate；The contact panel includes Touch Zone 4 and blank screen area 5, the electromagnetism interference
The upside of circuit board is provided with multiple ground capacities 6 in the region corresponding with the blank screen area 5.In the present embodiment, it is described
The number of ground capacity 6 is three, and three ground capacities, the 6 parallel spaced set.The ground capacity 6 resists with described
Electromagnetic interference circuit plate is connected.
The anti-electromagnetic interference circuit plate of the present embodiment includes PCB substrate, simulation ground circuit 1 and digitally circuit 2, described
PCB substrate includes multiple base board units 3, and the multiple base board unit 3 is stacked, and is set between two neighboring base board unit 3
It is equipped with the printing space for printed circuit；Simulation ground circuit 1 and digitally circuit 2 may be contained within the base board unit 3
On, and simulate ground circuit 1 and digitally circuit 2 is respectively arranged in different printing spaces.In the present embodiment, the substrate
The number of unit 3 is three, including first substrate unit, second substrate unit and the 3rd base board unit, first substrate unit, the
Two base board units and the 3rd base board unit are stacked gradually from top to bottom, and is formed between first substrate unit and second substrate unit
One printing space, the second printing space is formed between second substrate unit and the 3rd base board unit.The digitally circuit 2 and mould
Intend ground circuit 1 and be respectively arranged at the first printing space and the second printing space.Simulation ground circuit 1 and digitally circuit 2 is equal
It is to be arranged at by circuit typography on the base board unit 3 for printed circuit.
In the present embodiment, it is described simulation ground circuit 1 in and digitally circuit 2 includes multiple connecting lines, Duo Gelian
Between wiring at intervals of more than 0.2mm, avoid producing signal interference between connecting line.The cabling angle of connecting line is avoided to be straight
The bending angle of the junction of angle and acute angle, the bending part of each connecting line or two connecting lines is all higher than 90 °, can avoid producing
Inductance and Capacitance or magnetic field, prevent electromagnetic interference.Simultaneously different layers are taken away to being likely to cause the signal wire interfered
Composition method, it can so reduce the electromagnetic interference between signal wire.Multiple chips are additionally provided with the base board unit 3, it is more
Connection is communicated between individual chip；The threshold voltage and signal sequence of the output signal of each chip and connected chip it is defeated
Go out signal to match, avoid producing electrical potential difference between chip.
Preferably, described anti-electromagnetic interference circuit plate also includes RC filter circuits, the RC filter circuits and the number
Word circuit 2 and simulation ground circuit 1 be arranged in different printing spaces, certain, the RC filter circuits can also be with institute
State digitally circuit 2 or simulation ground circuit 1 is arranged in identical printing space.In touch-screen field, signal frequency is typically not
Height, and the RC filter circuits can filter out the interference such as the noise of signal, high fdrequency component, by high frequency signal attenuation.
In summary, anti-electromagnetic interference circuit plate and touch-screen provided by the invention have higher electromagnetism interference energy
Power, the military domain that is particularly suitable for use in or other civil areas higher to electromagnetism interference requirement.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair
The equivalents that bright specification and accompanying drawing content are made, or the technical field of correlation is directly or indirectly used in, similarly include
In the scope of patent protection of the present invention.
Claims (9)
- A kind of 1. anti-electromagnetic interference circuit plate, it is characterised in that including PCB substrate, ground circuit and digitally circuit are simulated, it is described PCB substrate includes multiple base board units, and the multiple base board unit is stacked, and is provided between two neighboring base board unit Printing space for printed circuit；Simulation ground circuit and digitally circuit may be contained within the base board unit, and mould Intend ground circuit and digitally circuit is respectively arranged in different printing spaces.
- 2. anti-electromagnetic interference circuit plate as claimed in claim 1, it is characterised in that the number of the base board unit is three, It is provided with the first printing space and the second printing space between three laminar substrate units, the simulation ground circuit and digitally circuit is set respectively It is placed in the first printing space and the second printing space.
- 3. anti-electromagnetic interference circuit plate as claimed in claim 1, it is characterised in that the simulation ground circuit and digitally circuit It is printed circuit.
- 4. anti-electromagnetic interference circuit plate as claimed in claim 1, it is characterised in that in simulation ground circuit and digitally Circuit includes multiple connecting lines, between multiple connecting lines at intervals of more than 0.2mm.
- 5. anti-electromagnetic interference circuit plate as claimed in claim 4, it is characterised in that the bending angle of the connecting line bending part More than 90 °.
- 6. anti-electromagnetic interference circuit plate as claimed in claim 1, it is characterised in that also equal including multiple chips, the chip It is arranged on the base board unit, connection is communicated between multiple chips；The threshold voltage and signal of the output signal of each chip Sequential and the output signal of connected chip match.
- 7. anti-electromagnetic interference circuit plate as claimed in claim 1, it is characterised in that also including RC filter circuits, the RC filters Wave circuit is arranged in identical or different printing space with the digitally circuit and simulation ground circuit.
- A kind of 8. touch-screen, it is characterised in that including the anti-electromagnetic interference circuit plate as described in claim 1-7 any one, Also include contact panel, the contact panel is arranged at the top of the anti-electromagnetic interference circuit plate and and anti-electromagnetic interference circuit Plate communication connection；The contact panel includes Touch Zone and blank screen area, the upside of the anti-electromagnetic interference circuit plate with it is described black Screen area is provided with multiple ground capacities in corresponding region.
- 9. touch-screen as claimed in claim 8, it is characterised in that the number of the ground capacity is three, and described three connect The parallel spaced set of ground electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710570416.0A CN107360668A (en) | 2017-07-13 | 2017-07-13 | A kind of anti-electromagnetic interference circuit plate and touch-screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710570416.0A CN107360668A (en) | 2017-07-13 | 2017-07-13 | A kind of anti-electromagnetic interference circuit plate and touch-screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107360668A true CN107360668A (en) | 2017-11-17 |
Family
ID=60292431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710570416.0A Pending CN107360668A (en) | 2017-07-13 | 2017-07-13 | A kind of anti-electromagnetic interference circuit plate and touch-screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107360668A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112087938A (en) * | 2020-09-07 | 2020-12-15 | 深圳市智仁科技有限公司 | Method, circuit and system for resisting electromagnetic interference of computer mainboard |
| CN113792516A (en) * | 2021-08-13 | 2021-12-14 | 深圳市志凌伟业光电有限公司 | Method for optimizing electromagnetic shielding member circuit and electromagnetic shielding member |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11145570A (en) * | 1997-11-10 | 1999-05-28 | Mitsubishi Electric Corp | Printed circuit board |
| CN202738251U (en) * | 2012-07-26 | 2013-02-13 | 泰州市赛福电子有限公司 | Printed circuit board inhibiting electromagnetic interference |
| CN105610317A (en) * | 2016-01-11 | 2016-05-25 | 深圳市志凌伟业技术股份有限公司 | Touch display device and driving circuit thereof |
| CN105979699A (en) * | 2016-07-22 | 2016-09-28 | 深圳天珑无线科技有限公司 | Printed circuit board and mobile phone housing |
| CN107241852A (en) * | 2017-05-04 | 2017-10-10 | 江西赛华科技股份有限公司 | Electromagnetism interference EMI circuit boards |
| CN206728365U (en) * | 2017-05-04 | 2017-12-08 | 江西赛华科技股份有限公司 | Electromagnetism interference EMI circuit boards |
| CN206932474U (en) * | 2017-07-13 | 2018-01-26 | 深圳市志凌伟业技术股份有限公司 | A kind of anti-electromagnetic interference circuit plate and touch-screen |
-
2017
- 2017-07-13 CN CN201710570416.0A patent/CN107360668A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11145570A (en) * | 1997-11-10 | 1999-05-28 | Mitsubishi Electric Corp | Printed circuit board |
| CN202738251U (en) * | 2012-07-26 | 2013-02-13 | 泰州市赛福电子有限公司 | Printed circuit board inhibiting electromagnetic interference |
| CN105610317A (en) * | 2016-01-11 | 2016-05-25 | 深圳市志凌伟业技术股份有限公司 | Touch display device and driving circuit thereof |
| CN105979699A (en) * | 2016-07-22 | 2016-09-28 | 深圳天珑无线科技有限公司 | Printed circuit board and mobile phone housing |
| CN107241852A (en) * | 2017-05-04 | 2017-10-10 | 江西赛华科技股份有限公司 | Electromagnetism interference EMI circuit boards |
| CN206728365U (en) * | 2017-05-04 | 2017-12-08 | 江西赛华科技股份有限公司 | Electromagnetism interference EMI circuit boards |
| CN206932474U (en) * | 2017-07-13 | 2018-01-26 | 深圳市志凌伟业技术股份有限公司 | A kind of anti-electromagnetic interference circuit plate and touch-screen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112087938A (en) * | 2020-09-07 | 2020-12-15 | 深圳市智仁科技有限公司 | Method, circuit and system for resisting electromagnetic interference of computer mainboard |
| CN113792516A (en) * | 2021-08-13 | 2021-12-14 | 深圳市志凌伟业光电有限公司 | Method for optimizing electromagnetic shielding member circuit and electromagnetic shielding member |
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| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171117 |
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| WD01 | Invention patent application deemed withdrawn after publication |