CN105260073A - Waterproof treatment technology of capacitive touch screen - Google Patents
Waterproof treatment technology of capacitive touch screen Download PDFInfo
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- CN105260073A CN105260073A CN201510736838.1A CN201510736838A CN105260073A CN 105260073 A CN105260073 A CN 105260073A CN 201510736838 A CN201510736838 A CN 201510736838A CN 105260073 A CN105260073 A CN 105260073A
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- touch screen
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- flexible pcb
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Abstract
The invention discloses a waterproof treatment technology of a capacitive touch screen. The waterproof treatment technology comprises the following steps: during the production of a sensor of the capacitive touch screen, insulation printing is added for a bonding area circuit as waterproof and anti-corrosion treatment, and the exposed conductive part of the sensor is treated only with silverglue PIN of the bonding area; after being subjected to SMT (surface mount technology) positioning, an FPC (flexible printed circuit) is treated with transparent sealing glue, and exposed bonding pads of a chip IC (integrated circuit), a capacitor, a resister and a diode element are sealed with the sealing glue; after the sensor is manufactured into small pieces and subjected to functional test, hot pressing is performed on the small pieces and the FPC, after pressing, functional test is carried out, then, insulating sealing glue is brushed, and UV drying is performed; the circuit formed through pressing the sensor and the FPC is adhered to a glass cover plate through small piece lamination process, the suspended parts between the FPC and the cover plate are stuck together through double faced adhesive tape, and few copper exposure parts of the FPC on the sensor surface are sealed with white sealing glue for sealing treatment. According to the waterproof treatment technology, the exposed conductive circuit of the touch screen and element bonding pad area are sealed, so as to achieve the waterproof function of the touch screen, and the waterproof treatment technology has the characteristics of easy technology and good waterproofness.
Description
Art
The present invention relates to a kind of capacitive touch screen water-proof treatment technology.
Background technology
Current smart mobile phone becomes the market mainstream gradually, and smart mobile phone, because of its properity character, exposes 3 large subject matters: screen is frangible, and easily water inlet burns out, and battery is not durable.
Present capacitive touch screen; waterproof technology is mainly by carrying out waterproof by the waterproof of components and parts dot encapsulation glue; IC region can only be protected by this waterproof type; the compressed portion of capacitance plate is equally also the region into the easy short circuit of water; general waterproof mobile phone can by doing the sealing structure of casing in pressing region; but structure, once destroy, does not just have the effect of waterproof.
Summary of the invention
Its object of the present invention is just to provide a kind of capacitive touch screen water-proof treatment technology, and by the conducting wire exposed by touch-screen, component pad regions seals, and realizes the water-proof function of touch-screen, has that technique is simple, the feature of good waterproof performance.
Realize above-mentioned purpose and the technical scheme taked, comprise step
1) capacitive touch screen is when making functional sheet sensor, and increase insulation print to pressing district circuit, as waterproof and anti-corrosion treatment, the current-carrying part that functional sheet sensor exposes only has the elargol PIN in pressing district;
2) flexible PCB FPC is after SMT piece, does the process of envelope transparent sealing glue, chip IC, electric capacity, resistance, pad fluid sealant that diode element is exposed is sealed;
3) functional sheet sensor makes small pieces and after doing functional test, does hot pressing, do functional test, then brush insulated enclosure glue after pressing is good with flexible PCB FPC, and UV is dry;
4) circuit after functional sheet sensor and flexible PCB FPC pressing, stick together through small pieces laminating processing procedure and glass cover-plate, overhanging portion between flexible PCB FPC and cover plate, stick together with double faced adhesive tape, a little dew copper part of functional sheet sensor face flexible PCB FPC, seal white sealing, do encapsulation process.
beneficial effect
Compared with prior art the present invention has the following advantages.
All closed processes is done by capacitive touch screen being exposed in atmosphere easily metallic member that is oxidized, short circuit, make touch-screen after machining, no longer include oxidizable current-carrying part in atmosphere exposed, thus reach after water, do not affect the normal function of touch-screen, reach the effect of waterproof.Have that technique is simple, the feature of good waterproof performance.Can for touch-screens such as G+G structure, G+F structure, G+FF structure, OGS structures, under the prerequisite not changing product structure, the circuit that commute exposes carries out encapsulation process, by touch-screen the place of likely short circuit all carry out waterproof sealing.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described
.
Fig. 1 is present invention process schematic flow sheet;
Fig. 2 is typography OGS capacitive touch screen structure schematic diagram.
Embodiment
As shown in Figure 1 and Figure 2, step is comprised
1) capacitive touch screen is when making functional sheet sensor, and increase insulation print to pressing district circuit, as waterproof and anti-corrosion treatment, the current-carrying part that functional sheet sensor exposes only has the elargol PIN in pressing district;
2) flexible PCB FPC is after SMT piece, does the process of envelope transparent sealing glue, chip IC, electric capacity, resistance, pad fluid sealant that diode element is exposed is sealed;
3) functional sheet sensor makes small pieces and after doing functional test, does hot pressing, do functional test, then brush insulated enclosure glue after pressing is good with flexible PCB FPC, and UV is dry;
4) circuit after functional sheet sensor and flexible PCB FPC pressing, stick together through small pieces laminating processing procedure and glass cover-plate, overhanging portion between flexible PCB FPC and cover plate, stick together with double faced adhesive tape, a little dew copper part of functional sheet sensor face flexible PCB FPC, seal white sealing, do encapsulation process.
Embodiment
As shown in Figure 1 and Figure 2, step comprises
1) functional sheet sensor prints increases the dielectric ink printing of hot pressing bonding district, and portion enclose unnecessary after elargol and OCA being fitted, ensures not oxidized, and accomplish waterproof.
2) flexible PCB FPC carries out a glue process, pad rubber seal exposed for the components and parts such as IC, electric capacity, resistance, diode is got up, this action after flexible PCB FPC plate SMT piece, tightness 100%.
3) after functional sheet sensor and flexible PCB FPC does hot pressing, by the flexible PCB FPC of stitching surface and functional sheet sensor bonding pad, brush one deck sealing glue, this glue insulate, and transparent, lastingly, performance guarantee is more than 1 year; It is whole that brush coating region comprises flexible PCB FPC pressing district, OCA and flexible PCB FPC offset region.
4) circuit that functional sheet sensor adds flexible PCB FPC carries out small pieces laminating with cover plate, from functional sheet sensor face, functional sheet sensor and flexible PCB FPC is directly put a glue after laminating, glue extends to fluting place, functional sheet sensorOCA two ends, carries out complete closed processes.
Claims (1)
1. a capacitive touch screen water-proof treatment technology, is characterized in that, comprises step,
1) capacitive touch screen is when making functional sheet sensor, and increase insulation print to pressing district circuit, as waterproof and anti-corrosion treatment, the current-carrying part that functional sheet sensor exposes only has the elargol PIN in pressing district;
2) flexible PCB FPC is after SMT piece, does the process of envelope transparent sealing glue, chip IC, electric capacity, resistance, pad fluid sealant that diode element is exposed is sealed;
3) functional sheet sensor makes small pieces and after doing functional test, does hot pressing, do functional test, then brush insulated enclosure glue after pressing is good with flexible PCB FPC, and UV is dry;
4) circuit after functional sheet sensor and flexible PCB FPC pressing, stick together through small pieces laminating processing procedure and glass cover-plate, overhanging portion between flexible PCB FPC and cover plate, stick together with double faced adhesive tape, a little dew copper part of functional sheet sensor face flexible PCB FPC, seal white sealing, do encapsulation process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510736838.1A CN105260073B (en) | 2015-11-03 | 2015-11-03 | A kind of capacitive touch screen water-proof treatment technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510736838.1A CN105260073B (en) | 2015-11-03 | 2015-11-03 | A kind of capacitive touch screen water-proof treatment technology |
Publications (2)
| Publication Number | Publication Date |
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| CN105260073A true CN105260073A (en) | 2016-01-20 |
| CN105260073B CN105260073B (en) | 2018-10-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510736838.1A Expired - Fee Related CN105260073B (en) | 2015-11-03 | 2015-11-03 | A kind of capacitive touch screen water-proof treatment technology |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106547401A (en) * | 2016-10-25 | 2017-03-29 | 南昌欧菲显示科技有限公司 | touch device and manufacturing method |
| CN107231761A (en) * | 2017-07-13 | 2017-10-03 | 安捷利电子科技（苏州）有限公司 | A kind of method using conductive gemel connection sensor and printed circuit board |
| CN107291311A (en) * | 2017-06-27 | 2017-10-24 | 长沙市宇顺显示技术有限公司 | A kind of preparation method of the anti-injureds of capacitor touch-control display screen FPC |
| CN108270898A (en) * | 2018-01-19 | 2018-07-10 | 广东欧珀移动通信有限公司 | Display panel control circuit plate component, display screen and electronic equipment |
| CN108399029A (en) * | 2017-02-08 | 2018-08-14 | 三菱电机株式会社 | Touch control panel device and the image display device for having the touch control panel device |
| CN109036171A (en) * | 2018-07-10 | 2018-12-18 | 中航华东光电有限公司 | Liquid crystal display signal converting band encapsulating method |
| CN109104660A (en) * | 2018-08-08 | 2018-12-28 | 深圳市中时科技有限公司 | A kind of sealing waterproof method of bluetooth headset |
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| CN204179345U (en) * | 2014-11-13 | 2015-02-25 | 潍坊歌尔电子有限公司 | A kind of waterproof connector structure of electronic product |
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| WO2011145878A3 (en) * | 2010-05-20 | 2012-03-01 | Woo Gwan-Je | Pet and tempered glass layer composite type touch sensor for touch screen and manufacturing method therefor |
| KR20120007912A (en) * | 2010-07-15 | 2012-01-25 | (주)삼원에스티 | Metod of manufacturing touch panel snesor |
| CN103294308A (en) * | 2013-05-09 | 2013-09-11 | 晟光科技股份有限公司 | Improved GF (glass-film)-structured touch screen and connection method for FPC (flexible printed circuit) thereof |
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| CN103786410A (en) * | 2013-12-31 | 2014-05-14 | 江西海纳川科技有限公司 | Sealant gluing and manufacturing technology of G+G (sensor glass+tempered glass cover plate structure) capacitor screen |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106547401A (en) * | 2016-10-25 | 2017-03-29 | 南昌欧菲显示科技有限公司 | touch device and manufacturing method |
| CN108399029A (en) * | 2017-02-08 | 2018-08-14 | 三菱电机株式会社 | Touch control panel device and the image display device for having the touch control panel device |
| CN108399029B (en) * | 2017-02-08 | 2021-07-13 | 三菱电机株式会社 | Touch panel device and image display device provided with same |
| CN107291311A (en) * | 2017-06-27 | 2017-10-24 | 长沙市宇顺显示技术有限公司 | A kind of preparation method of the anti-injureds of capacitor touch-control display screen FPC |
| CN107231761A (en) * | 2017-07-13 | 2017-10-03 | 安捷利电子科技（苏州）有限公司 | A kind of method using conductive gemel connection sensor and printed circuit board |
| CN107231761B (en) * | 2017-07-13 | 2023-05-05 | 安捷利电子科技（苏州）有限公司 | Method for connecting sensor and printed circuit board by using conductive adhesive |
| CN108270898A (en) * | 2018-01-19 | 2018-07-10 | 广东欧珀移动通信有限公司 | Display panel control circuit plate component, display screen and electronic equipment |
| CN109036171A (en) * | 2018-07-10 | 2018-12-18 | 中航华东光电有限公司 | Liquid crystal display signal converting band encapsulating method |
| CN109104660A (en) * | 2018-08-08 | 2018-12-28 | 深圳市中时科技有限公司 | A kind of sealing waterproof method of bluetooth headset |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105260073B (en) | 2018-10-19 |
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Granted publication date: 20181019 Termination date: 20211103 |