CN205050115U - Antistatic anti -electromagnetic interference touch -sensitive screen - Google Patents
Antistatic anti -electromagnetic interference touch -sensitive screen Download PDFInfo
- Publication number
- CN205050115U CN205050115U CN201520806582.2U CN201520806582U CN205050115U CN 205050115 U CN205050115 U CN 205050115U CN 201520806582 U CN201520806582 U CN 201520806582U CN 205050115 U CN205050115 U CN 205050115U
- Authority
- CN
- China
- Prior art keywords
- touch
- screen
- conductive
- layer
- antistatic
- 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.)
- Active
Links
Abstract
The utility model provides an antistatic anti -electromagnetic interference touch -sensitive screen, including the laminating ITO conductive thin film and conductive glass be provided with the FPC flexible circuit board between ITO conductive thin film and the conductive glass, its characterized in that is in conductive glass's outside still is provided with one deck conductive thin film. The utility model discloses a back on the casing is installed to the touch -sensitive screen, and silver thick liquid coating can contact the casing to formation switches on the return circuit, and the static elimination owing to loop in and shield through conductive thin film, forms and shields the layer, prevents electromagnetic interference.
Description
Technical field
The utility model relates to touch-screen, the touch-screen of especially antistatic electromagnetism interference.
Background technology
Touch-screen is as a kind of sensor, and that applies in all trades and professions such as life, manufacturing industry is more and more extensive.The touch-screen commercially used at present is roughly divided into two large class, resistive touch screen and capacitive touch screens.
Resistive touch screen is the structure that film adds glass substantially, and the one side that film is adjacent with glass all scribbles ITO(nano indium tin metal oxide) coating, ITO has good electric conductivity and the transparency.When touch operation, the ITO of film lower floor can touch the ITO of glass superstrate, spreads out of corresponding electric signal via inductor, processor is delivered to through change-over circuit, be converted into the X on screen, Y value by computing, and complete the action clicked, and be presented on screen.The principle of work of electric resistance touch screen mainly realizes the operation of screen content and control by pressure sensitive principle, this screen body of touch screen part be one piece with the display surface very multi-layer compound film that coordinates of resistive touch screen, wherein ground floor is glass or organic glass bottom, the second layer is interlayer, third layer is polynary resin surface layer, surface also scribbles the conductive layer of layer of transparent, is stamped one deck outside surface above again through cure process, smooth scratch resistant plastic layer.The conducting stratum of polynary fat skin surface and glassy layer inductor separate by many small interlayers electric current by top layer, when touching top layer pressure, touch bottom, controller reads the distance of electric current and the calculating finger position matched simultaneously from four angles.This touch-screen utilizes the conductive layer composition touch-screen of two-layer high transparency, and two-layer spacing is only 2.5 microns.When a finger is touching the screen, the two conductive layers of usual mutually insulated has just had a contact in position, touch point, because wherein conductive layer connects the 5V even voltage field of Y direction, make the voltage detecting layer become non-zero from zero, controller carries out A/D conversion after detecting this connection, and by the magnitude of voltage that obtains compared with 5V, the Y-axis coordinate of touch point, in like manner draw the coordinate of X-axis, the most ultimate principle that Here it is all resistive technologies touch-screens are common.
Capacitance-type touch screen technology utilizes the electric current of human body to respond to carry out work.Capacitive touch screen is one piece of four layers of compound glass screen; the inside surface of glass screen and interlayer respectively scribble one deck ito film, and outermost layer is skim silicon soil glassivation, and interlayer ITO coating is as workplace; four electrodes are drawn at four angles, and internal layer ITO is that screen layer is to ensure good working environment.When finger touch on the metal layer time, due to human body electric field, user and touch screen surface are formed with a coupling capacitance, and for high-frequency current, electric capacity is direct conductor, so finger siphons away a very little electric current from contact point.This electric current flows out respectively from the electrode the corner of touch-screen, and the electric current flowing through these four electrodes is directly proportional to the distance of finger to corner, and controller, by the accurate Calculation to these four current ratios, draws the position of touch point.
For touch-screen, be fixed between ITO conductive film 1 and electro-conductive glass 2 referring to Fig. 1, FPC flexible circuit 3.Fit together by optical cement 4 between ITO conductive film and electro-conductive glass.All there is electric conductivity with due to conductive film and electro-conductive glass, in use, easily cause electrostatic or external electromagnetic interference, cause and bring inconvenience.In touch-screen uses, how to eliminate electrostatic and electromagnetism interference is urgent problem.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of touch-screen of antistatic electromagnetism interference, and it can be antistatic, prevents electromagnetic interference (EMI), improves the accuracy of the operation of touch-screen.
For solving the problems of the technologies described above, the technical scheme that the utility model provides is a kind of touch-screen of antistatic electromagnetism interference, comprise ITO conductive film and the electro-conductive glass of laminating, between described ITO conductive film and electro-conductive glass, be provided with FPC flexible PCB, it is characterized in that also being provided with layer of conductive film in the outside of described electro-conductive glass.
A circle silver slurry is coated with in the outside of described conductive film.
Described silver slurry coating is frame type coating.
Described silver slurry coating is positioned at the outside of described touch screen transparent viewfinder area.
Be arranged on after on casing at touch-screen of the present utility model, silver slurry coating can contact casing, thus forms conducting loop, eliminates electrostatic, owing to forming loop and being covered by conductive film, forms shielding layer, prevents electromagnetic interference (EMI).
Accompanying drawing explanation
Fig. 1, the structural representation of current ITO conductive film and electro-conductive glass.
Fig. 2, touch screen structure schematic diagram of the present utility model.
Fig. 3, the result schematic diagram of the utility model silver coating pulp layer.
Embodiment
For technique scheme, now lift a preferred embodiment and be specifically described in conjunction with diagram.Referring to Fig. 2 to Fig. 3, the touch-screen of antistatic electromagnetism interference of the present utility model, it mainly comprises ITO conductive film, electro-conductive glass, FPC flexible PCB, conductive film, silver slurry coating, wherein.
ITO conductive film 1 is fit together by ACF double faced adhesive tape 4 and electro-conductive glass 2.FPC flexible PCB 3 is provided with between ITO conductive film and electro-conductive glass, as touch-screen external connector, outside signal transmission.The one side that electro-conductive glass and ITO conductive film are fitted is coated with one deck ITO conductive membrane layer, and when touching click, ITO conductive film contacts with the ITO conductive membrane layer on electro-conductive glass and produces touch signal, through FPC flexible PCB, touch signal is transferred to outside.In the utility model, in the outside of electro-conductive glass, namely back to the one side of ITO conductive film, be also coated with layer of conductive film layer 5.This conductive membrane layer material is also ITO conductive membrane layer material.In the outside in the transparent window district 6 of touch-screen, the inner side even spread at rich rete 5 edge of conduction has one deck silver slurry coating 7.Silver slurry coating is the frame type structure of a conducting.The width of this silver slurry coating determines according to chassis size.By the chassis contact that silver slurry coating and conductive membrane layer and touch-screen are installed, a conducting loop can be formed.The electrostatic that touch-screen produces is discharged through this conducting loop, thus reaches the object of antistatic electromagnetism interference.
Touch-screen of the present utility model, only increases layer of conductive film and is coated with a circle conductive coating, can eliminate electrostatic, reach the object of antistatic electromagnetism interference outside electro-conductive glass.Its structure is simple, and processes is simple, and effectively promotes touch screen performance.
Claims (4)
1. the touch-screen of an antistatic electromagnetism interference, comprise ITO conductive film and the electro-conductive glass of laminating, between described ITO conductive film and electro-conductive glass, be provided with FPC flexible PCB, it is characterized in that also being provided with layer of conductive film in the outside of described electro-conductive glass.
2. the touch-screen of antistatic electromagnetism interference according to claim 1, is characterized in that being coated with a circle silver slurry in the outside of described conductive film.
3. the touch-screen of antistatic electromagnetism interference according to claim 2, is characterized in that described silver slurry coating is frame type coating.
4. the touch-screen of antistatic electromagnetism interference according to claim 2, is characterized in that described silver slurry coating is positioned at the outside of described touch screen transparent viewfinder area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520806582.2U CN205050115U (en) | 2015-10-19 | 2015-10-19 | Antistatic anti -electromagnetic interference touch -sensitive screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520806582.2U CN205050115U (en) | 2015-10-19 | 2015-10-19 | Antistatic anti -electromagnetic interference touch -sensitive screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205050115U true CN205050115U (en) | 2016-02-24 |
Family
ID=55343672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520806582.2U Active CN205050115U (en) | 2015-10-19 | 2015-10-19 | Antistatic anti -electromagnetic interference touch -sensitive screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205050115U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688417A (en) * | 2017-10-11 | 2018-02-13 | 中航华东光电有限公司 | Novel and multifunctional capacitance touch screen |
| CN113589975A (en) * | 2021-07-30 | 2021-11-02 | 广西中沛光电科技有限公司 | Manufacturing method of oversized capacitive touch screen |
| CN113597112A (en) * | 2021-08-02 | 2021-11-02 | 广西中沛光电科技有限公司 | FPC design method based on large-size capacitive touch screen |
-
2015
- 2015-10-19 CN CN201520806582.2U patent/CN205050115U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107688417A (en) * | 2017-10-11 | 2018-02-13 | 中航华东光电有限公司 | Novel and multifunctional capacitance touch screen |
| CN113589975A (en) * | 2021-07-30 | 2021-11-02 | 广西中沛光电科技有限公司 | Manufacturing method of oversized capacitive touch screen |
| CN113597112A (en) * | 2021-08-02 | 2021-11-02 | 广西中沛光电科技有限公司 | FPC design method based on large-size capacitive touch screen |
| CN113597112B (en) * | 2021-08-02 | 2024-03-01 | 广西中沛光电科技有限公司 | FPC design method based on large-size capacitive touch screen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5346769B2 (en) | Touch panel and display device including the same | |
| JP5039747B2 (en) | Input device and display device including the same | |
| CN201166842Y (en) | Interior surface capacitance touch screen capable of multi-point touch control | |
| CN205050115U (en) | Antistatic anti -electromagnetic interference touch -sensitive screen | |
| CN103164101A (en) | Capacitance touch screen based on grapheme sensors | |
| US20120249469A1 (en) | Display with touch control function | |
| CN205862314U (en) | Add evanescence of heat mist electric resistance touch screen | |
| KR101574401B1 (en) | Touch screen | |
| CN201757891U (en) | High light penetration type capacitor touch-screen | |
| US9639215B2 (en) | Touch screen | |
| CN105487738B (en) | capacitive touch screen panel | |
| CN205310987U (en) | Touch -sensitive screen laminating is with bubble celloidin | |
| CN205050124U (en) | Jumbo size capacitive touch panel | |
| CN206162476U (en) | Monolayer -film multipoint touch screen | |
| CN103838416A (en) | Manufacturing method for touch screen module, touch screen module and digital product | |
| CN207281732U (en) | A kind of capacitance touch screen | |
| CN203376720U (en) | Anti-interference capacitive touch screen panel | |
| CN203102197U (en) | Touch screen panel for mobile phone | |
| CN205050125U (en) | Reflected resistance touch -sensitive screen is hanged down to vehicular | |
| CN205334444U (en) | Low touch resistance touch -sensitive screen | |
| CN204331694U (en) | A kind of novel projection-type capacitive touch screen | |
| CN205050116U (en) | Wire integration touch -sensitive screen | |
| CN103294318A (en) | Capacitance touch panel utilizing traditional resistive films | |
| CN205862313U (en) | Double FPC electric resistance touch screens | |
| CN203299795U (en) | Capacitive touch screen using traditional resistive film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |