CN206042507U - Antistatic flexible line way board of touch -sensitive screen - Google Patents
Antistatic flexible line way board of touch -sensitive screen Download PDFInfo
- Publication number
- CN206042507U CN206042507U CN201620887104.3U CN201620887104U CN206042507U CN 206042507 U CN206042507 U CN 206042507U CN 201620887104 U CN201620887104 U CN 201620887104U CN 206042507 U CN206042507 U CN 206042507U
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- CN
- China
- Prior art keywords
- stitch
- antistatic
- passage
- touch screen
- tvs diode
- 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.)
- Expired - Fee Related
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- Elimination Of Static Electricity (AREA)
Abstract
The utility model relates to an antistatic flexible line way board of touch -sensitive screen, this flexible line way board connect the touch -sensitive screen bind the region on, control IC set up on this flexible line way board, this control IC has a plurality of stitchs, each this stitch all is connected with the antistatic module of stitch, still be provided with drive passageway and response passageway on this flexible line way board, this drive passageway and should respond to the passageway in be provided with the antistatic module of passageway respectively, wherein, including a two -way TVS diode in the antistatic module of this stitch, including a two -way TVS diode and an exclusion in the antistatic module of this passageway.
Description
Technical field
This utility model is related to a kind of anlistatig flexible circuit board, particularly relate to it is a kind of apply in touch screen it is anti-quiet
Electric flexible circuit board.
Background technology
It is well known that the flexible circuit board of correlation can be all equipped with general touch screen to support the work of touch screen, it is soft
Property wiring board on be provided with control IC, control IC typically has several external terminals, and traditional control IC only can be to controlling
The stitch that the power line stitch of IC processed and RST reset increases electric capacity and is filtered effect, and other stitch are not all carried out appointing
What related Electrostatic Protection Design, and often there is IC by electrostatic breakdown in this kind of structure design, and cause to touch asking for failure
Topic, and this is the major defect for conventional art.
Utility model content
This utility model provides a kind of antistatic flexible wiring board of touch screen, and its antistatic effect is strong, can strengthen tactile
The antistatic effect of control IC, prevents TP to be particularly under the high environment of electrostatic in winter, the communication line and port line of touch-control IC
It is damaged by static electricity.
Technical solution adopted in the utility model is：A kind of antistatic flexible wiring board of touch screen, the flexible circuitry
Plate is connected in the binding region of touch screen, and control IC is arranged in the flexible circuit board, and control IC has some stitch, often
One stitch is all connected with stitch antistatic module, is additionally provided with driving passage and sensing is logical in the flexible circuit board
Road, is respectively arranged with passage antistatic module in the driving passage and the induction channels, wherein, in the stitch antistatic module
A two-way TVS diode is included, a two-way TVS diode and a row in the passage antistatic module, is included
Resistance, the two-way TVS diode in the passage antistatic module are connected in series with exclusion.
When being embodied as, this controls IC for touch-control IC, and control IC realizes communication by six stitch, six
The stitch be respectively interrupt INT stitch, reset RST stitch, power vd D stitch, earth terminal GND stitch, data SDA stitch, when
Clock SCL stitch, wherein, interrupt INT stitch, reset RST stitch, power vd D stitch, data SDA stitch, clock SCL stitch point
It is not connected with a two-way TVS diode.
The beneficial effects of the utility model are：This utility model for electrostatic it is excessive when can damage IC passages, cause IC to feel
Should be with to drive path partially data less than normal or overall data is less than normal, so as to the problem for occurring to touch failure.This utility model is directed to
Each of IC drives and induction channels increase an exclusion and two-way TVS diode is protected.When human body touch screen table
During face, electrostatic is possible to be introduced into inside IC by the touch screen on surface.Can be complete using flexible circuit board of the present utility model
Avoid the occurrence of it is this kind of, when with certain voltage value electrostatic by TP surfaces enter after, exclusion can be first passed through, exclusion has one
Determine resistance, when voltage is constant, will diminish through the electric current of exclusion, so as to protect IC.When electrostatic is passed through after exclusion again
During two-way TVS diode, as the big diode of the voltage of electrostatic can become conductor moment, on static guiding to GND, so as to protect
To each sensing and the driving passage of IC.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic diagram that this utility model controls IC.
Fig. 3 is the schematic diagram for arranging exclusion and TVS diode on this utility model passage.
Fig. 4 is the schematic diagram for arranging TVS diode on this utility model communication line.
Fig. 5 is the schematic diagram for arranging TVS diode on this utility model VDD power lines.
Specific embodiment
As Figure 1-5, the antistatic flexible wiring board of a kind of touch screen, the flexible circuit board 10 are connected to touch screen
In binding region 20.
Control IC30 is arranged in the flexible circuit board 10, and control IC30 has some stitch, each stitch
It is connected with stitch antistatic module.
Driving passage 40 and induction channels 50 are additionally provided with the flexible circuit board 10.
Passage antistatic module is respectively arranged with the driving passage 40 and the induction channels 50, wherein, the stitch resists
A two-way TVS diode is included in electrostatic module.
A two-way TVS diode and an exclusion is included in the passage antistatic module.
Two-way TVS diode in the passage antistatic module is connected in series with exclusion 60.
When being embodied as, this controls IC30 for touch-control IC, and control IC30 realizes communication by six stitch,
Six stitch are respectively interrupt INT stitch, reset RST stitch, power vd D stitch, earth terminal GND stitch, data SDA pin
Foot, clock SCL stitch.
Wherein, interrupt INT stitch, reset RST stitch, power vd D stitch, data SDA stitch, clock SCL stitch difference
It is connected with a two-way TVS diode.
Technology contents of the present utility model can be mainly applied on vehicle mounted guidance, and common touch-control IC antistatic effects are
Contact discharge is：± 4KV, atmospherical discharges ± 8KV.After increasing Electrostatic Protection Design of the present utility model, touch-control IC antistatic energy
Power can rise to contact discharge：± 8KV, atmospherical discharges ± 15KV.
Technology of the present utility model is applied on automobile navigation, can strengthen the antistatic effect of touch-control IC, prevents TP from existing
Winter is particularly under the high environment of electrostatic, and the communication line and port line of touch-control IC are damaged by static electricity.
When specific works, this utility model passes through interrupt INT stitch, reset RST stitch, power vd D stitch, number
Protected according to a corresponding two-way TVS diode is increased at SDA stitch, clock SCL stitch.So as to prevent surveying in electrostatic
The occurrence of running into electrostatic to damage the communication line of IC in examination and actual daily use, and affect touch function.
This utility model for electrostatic it is excessive when can damage IC passages, cause IC sensing and drive path partially data it is less than normal
Or overall data is less than normal, so as to the problem for occurring to touch failure.This utility model is driven and induction channels for each of IC
Increase an exclusion and two-way TVS diode is protected.
When human body touch screen surface, electrostatic is possible to be introduced into inside IC by the touch screen on surface.Using this practicality
New flexible circuit board can avoid the occurrence of this kind of completely.
After the electrostatic with certain voltage value is entered by TP surfaces, exclusion can be first passed through, exclusion has certain resistance, voltage
When constant, will diminish through the electric current of exclusion, so as to protect IC.When electrostatic after exclusion again through bis- poles of two-way TVS
Guan Shi, as the big diode of the voltage of electrostatic can become conductor moment, on static guiding to GND, so as to protect IC each
Sensing and driving passage.
ESD protective device is in that high-impedance state, i.e. resistance are infinitely great in a non-operative state, is not turned on.And when electrostatic occurs,
When voltage is started more than device, device transient switching, resistance become very little, in short-circuit condition, so as to electrostatic moment is let out
Earth terminal is put into, and back-end circuit is protected from electrostatic breakdown, in order to avoid damage other components and parts of circuit and cause amplifying circuit to lose
True the occurrence of.
When being embodied as, exclusion of the present utility model can select the exclusion of 1.8K Ω, can play and delay electrostatic
Effect, will not increase again driving and induction channels impedance, do not affect the touch effect of IC.
Claims (4)
1. the antistatic flexible wiring board of a kind of touch screen, the flexible circuit board are connected in the binding region of touch screen, are controlled
IC is arranged in the flexible circuit board, and control IC has some stitch, it is characterised in that：
Each stitch is connected with stitch antistatic module, is additionally provided with driving passage and sense in the flexible circuit board
Passage is answered, passage antistatic module in the driving passage and the induction channels, is respectively arranged with, wherein, the stitch antistatic mould
A two-way TVS diode is included in block, includes a two-way TVS diode and one in the passage antistatic module
Exclusion.
2. the as described in claim 1 antistatic flexible wiring board of a kind of touch screen, it is characterised in that：The passage antistatic
Two-way TVS diode in module is connected in series with exclusion.
3. the as described in claim 1 antistatic flexible wiring board of a kind of touch screen, it is characterised in that：It is tactile that this controls IC
Control IC.
4. the as described in claim 1 antistatic flexible wiring board of a kind of touch screen, it is characterised in that：Control IC passes through
Six stitch realize communication, and six stitch are respectively interrupt INT stitch, reset RST stitch, power vd D stitch, earth terminal
GND stitch, data SDA stitch, clock SCL stitch, wherein, interrupt INT stitch, reset RST stitch, power vd D stitch, data
SDA stitch, clock SCL stitch are connected with a two-way TVS diode respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620887104.3U CN206042507U (en) | 2016-08-16 | 2016-08-16 | Antistatic flexible line way board of touch -sensitive screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620887104.3U CN206042507U (en) | 2016-08-16 | 2016-08-16 | Antistatic flexible line way board of touch -sensitive screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206042507U true CN206042507U (en) | 2017-03-22 |
Family
ID=58306299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620887104.3U Expired - Fee Related CN206042507U (en) | 2016-08-16 | 2016-08-16 | Antistatic flexible line way board of touch -sensitive screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206042507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109023849A (en) * | 2018-09-28 | 2018-12-18 | 青岛海尔滚筒洗衣机有限公司 | A kind of control panel and washing machine |
-
2016
- 2016-08-16 CN CN201620887104.3U patent/CN206042507U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109023849A (en) * | 2018-09-28 | 2018-12-18 | 青岛海尔滚筒洗衣机有限公司 | A kind of control panel and washing machine |
| CN109023849B (en) * | 2018-09-28 | 2023-09-15 | 重庆海尔滚筒洗衣机有限公司 | Control panel and washing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170322 Termination date: 20200816 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |