CN104331209A - Method for manufacturing integrated touch capacitive screen by using conductive high molecular materials - Google Patents
Method for manufacturing integrated touch capacitive screen by using conductive high molecular materials Download PDFInfo
- Publication number
- CN104331209A CN104331209A CN201410695768.5A CN201410695768A CN104331209A CN 104331209 A CN104331209 A CN 104331209A CN 201410695768 A CN201410695768 A CN 201410695768A CN 104331209 A CN104331209 A CN 104331209A
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- conducting polymer
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- 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
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Abstract
The invention relates to a method for manufacturing an integrated touch capacitive screen by using conductive high molecular materials. The method comprises the following steps: (1) uniformly spraying the conductive high molecular materials on a glass cover plate; (2) etching by etching paste to form a needed pattern; (3) connecting silk-screen conductive silver slurry with a conductive high molecular region to form an access; (4) etching a silver slurry circuit by laser to form a needed conductive circuit; (5) repairing an ink position punched by the laser; (6) carrying out hot pressing on a touch IC flexile circuit board and a semi-finished product manufactured by the step (4) by using a hot pressing process; and (7) carrying out an electric performance test. The method has the beneficial effects that conductive-layer materials of a traditional capacitive type touch screen are replaced and the problem that the reinforcement of an OGS capacitive type touch screen cannot meet customer requirements is solved; the investment of film plating production equipment is saved; the manufacturing process is simple and the production efficiency is high; the loss in a manufacturing process is reduced and the cost is low; and the yield can be up to be more than 75%.
Description
Technical field
The present invention relates to the manufacture craft of integrated touch-control (TOL) capacitive touch screen, particularly a kind of method adopting being made into one of conducting polymer composite touch control capacitance to shield.
Background technology
Along with the develop rapidly of mobile phone, panel computer capacitive touch screen, the manufacturer of capacitive touch screen (OGS) is also increasing sharply, when OGS cannot meet the requirement of cell phone manufacturer in strengthening, a part of manufacturer begins one's study and makes small pieces OGS product and TOL capacitive touch screen.At present, because the technological process of production of TOL capacitive touch screen is complicated, equipment capacity is limited, and the producer of batch production cans be counted on one's fingers.Therefore, it is very large unfavorable that the production technology of traditional OGS is brought to the survival and development of manufacturer, be also unfavorable for industry development, and the conductive layer of existing TOL capacitance touch screen products is tin indium oxide, tin indium oxide uses plated film mode to be plated on glass cover-plate, and efficiency is low and cost is high.Because TOL capacitive touch screen tin indium oxide (ITO) completes mainly through coating process, its cost of manufacture and strengthening problem are the bottlenecks of some manufacturers always, ITO can not adopt coating method to be applied on glass cover-plate, and it is high to invest coating wire cost, simultaneously, because touch-screen is for display, service condition is natural conditions, in use want long-term being pressed, work as high temperature, high humidity, cold, illumination, under the natural conditions such as suddenly cold and hot, visible light transmissivity, resistive performance, ageing-resistant performance, blow performance, the aspects such as the linearity all will keep fine quality.
Conducting polymer composite is at present in transmitance, basic close to ITO product on resistive performance; ITO product is under hot and humid (60 DEG C, 95%RH) condition, after 500 hours, resistance variations is larger, and conducting polymer composite under the same conditions fundamental performance parameter have almost no change, so the ageing-resistant effect of conducting polymer composite is better than ITO product; Reliability aspect ITO is more crisp, conducting polymer composite has the higher permanance to mechanical compression than ITO material, even if pen taps and presses problem ITO electric conductivity also seldom occurring and is deteriorated repeatedly, thus can extend the touch-screen life-span realizes high reliability, the sample conducting polymer composite that linearity aspect makes at present also can be met the need of market, but less better compared with ITO material homogeneity, conducting polymer composite more cheap than ITO material 1/2 in price.
Summary of the invention
In view of above-mentioned prior art Problems existing, the present invention researches and develops a kind of method adopting conducting polymer composite to make TOL capacitance plate, conducting polymer composite is substituted ITO material on glass, make TOL capacitive touch screen, the producer without coating film production line can be applied to, the investment of technological process and spillage of material and minimizing filming equipment costliness can be reduced.Concrete technical scheme is, a kind of method adopting being made into one of conducting polymer composite touch control capacitance to shield
,it is characterized in that:
, at mobile phone or the panel computer finished glass cover plate back side, by conducting polymer composite adopt spraying mode coat uniformly, use continuous tunnel furnace dry;
, etching paste on pattern position silk-screen will not be needed, silk-screen goes out pattern, silk-screen etching paste thickness is 14um ~ 16um, printing line thickness is 25um ~ 35um, conveying type oven is sent to toast, temperature is 130 DEG C ~ 140 DEG C, transfer rate is 1.5 ~ 1.8m/min, then fall etching paste by clean water, namely remaining pattern is the conducting polymer composite pattern wanting to obtain, and forms one deck conducting polymer conductive region;
, on the basis of ground floor silk-screened conductive silver slurry, conductive polymer sub pattern and conductive silver wire overlaps, and form path, silk-screened conductive silver paste printing ink thickness is 6 ~ 8um, and then baking is silver-colored starches, and baking box temperature is 130 ~ 150 DEG C, the time is 60 minutes;
, etch conductive silver paste with laser etching machine, etched width 35um, make silver slurry region form required circuit, laser machine parameter, speed 2500mm/s, frequency 300HZ, electric current 50A;
, silver slurry position needed to carry out silk-screen repairing ink by the ink that laser is punched, and the ink filled by the position that laser is punched and former cover plate color are consistent;
, use heat pressing process will the flexible circuit board of band touch-control IC and step
the semi-manufacture made carry out hot pressing, hot pressing temperature 170 ~ 180 DEG C, time 12 ~ 15s;
, functional test is carried out to product, distinguish defective products.
The invention has the beneficial effects as follows the conductive that instead of conventional condenser touch-screen, solve OGS capacitive touch screen and manufacture the problem that strengthening does not reach customer requirement, save the investment of plated film production equipment, manufacture craft is simple, production efficiency is high, reduce the loss in manufacturing process, cost is low, and qualification rate can reach 75 more than ﹪.
Embodiment
Below in conjunction with example, the invention will be further described, and this method is by the mode of coating, and be divided into by TOL capacitive touch screen seven steps to make, for mobile phone 4 cun of product TOL capacitive touch screens, its step is as follows:
, at mobile phone or the panel computer finished glass cover plate back side, the mode of conducting polymer composite vacuum coating plated uniformly or adopts the mode of coating to coat uniformly, using continuous tunnel furnace to dry, baking temperature 130 DEG C, make electric conductivity and adhesion, outward appearance etc. reach quality requirements;
, etching paste on pattern position silk-screen will not be needed, silk-screen goes out pattern, silk-screen etching paste thickness is 15um, printing line thickness is 30um, conveying type oven is sent to toast, temperature is 135 DEG C, transfer rate is 1.8m/min, then etching paste is fallen by clean water, namely remaining pattern is the conductive polymer sub pattern wanting to obtain, forming one deck electrochromic conducting polymer region silk-screen etching paste thickness is 15um, printing line thickness is 30um, conveying type oven is sent to toast, temperature is 135 DEG C, transfer rate is 1.8m/min, then etching paste is fallen by clean water, namely remaining pattern is the conductive polymer sub pattern wanting to obtain, form one deck electrochromic conducting polymer region,
, on the basis of ground floor silk-screened conductive silver slurry, conductive polymer sub pattern and conductive silver wire overlaps, and form path, silk-screened conductive silver paste printing ink thickness is 6um, and then baking is silver-colored starches, and baking box temperature is 140 DEG C, the time is 60 minutes;
, etch conductive silver paste with laser etching machine, etched width 35um, make silver slurry region form required circuit, laser machine parameter, speed 2500mm/s, frequency 300HZ, electric current 50A;
, silver slurry position needed to carry out silk-screen repairing ink by the ink that laser is punched, and the ink filled by the position that laser is punched and former cover plate color are consistent;
, use heat pressing process will be with touch-control IC flexible circuit board and step
the semi-manufacture made carry out hot pressing, hot pressing temperature 180 DEG C, time 13s;
, functional test is carried out to product, distinguish defective products.
The 500 TOL capacitive touch screens made taking above technique carry out electrical property and outward appearance test, and qualification rate is greater than 80 ﹪.
Claims (1)
1. the method adopting being made into one of conducting polymer composite touch control capacitance to shield
,it is characterized in that: by the mode of vacuum coating or coating, conducting polymer composite is substituted indium tin oxide material and be plated to or be applied to the glass cover-plate finished product back side and be then made into capacitive touch screen, its step is as follows,
, at mobile phone or the panel computer finished glass cover plate back side, by conducting polymer composite adopt spraying mode coat uniformly, use continuous tunnel furnace dry;
, etching paste on pattern position silk-screen will not be needed, silk-screen goes out pattern, silk-screen etching paste thickness is 14um ~ 16um, printing line thickness is 25um ~ 35um, conveying type oven is sent to toast, temperature is 130 DEG C ~ 140 DEG C, transfer rate is 1.5 ~ 1.8m/min, then fall etching paste by clean water, namely remaining pattern is the conducting polymer composite pattern wanting to obtain, and forms one deck conducting polymer conductive region;
, on the basis of ground floor silk-screened conductive silver slurry, conductive polymer sub pattern and conductive silver wire overlaps, and form path, silk-screened conductive silver paste printing ink thickness is 6 ~ 8um, and then baking is silver-colored starches, and baking box temperature is 130 ~ 150 DEG C, the time is 60 minutes;
, etch conductive silver paste with laser etching machine, etched width 35um, make silver slurry region form required circuit, laser machine parameter, speed 2500mm/s, frequency 300HZ, electric current 50A;
, silver slurry position needed to carry out silk-screen repairing ink by the ink that laser is punched, and the ink filled by the position that laser is punched and former cover plate color are consistent;
, use heat pressing process will the flexible circuit board of band touch-control IC and step
the semi-manufacture made carry out hot pressing, hot pressing temperature 170 ~ 180 DEG C, time 12 ~ 15s;
, functional test is carried out to product, distinguish defective products.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410695768.5A CN104331209A (en) | 2014-11-27 | 2014-11-27 | Method for manufacturing integrated touch capacitive screen by using conductive high molecular materials |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410695768.5A CN104331209A (en) | 2014-11-27 | 2014-11-27 | Method for manufacturing integrated touch capacitive screen by using conductive high molecular materials |
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| CN104331209A true CN104331209A (en) | 2015-02-04 |
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| CN201410695768.5A Pending CN104331209A (en) | 2014-11-27 | 2014-11-27 | Method for manufacturing integrated touch capacitive screen by using conductive high molecular materials |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105045457A (en) * | 2015-08-10 | 2015-11-11 | 东莞市通美电子科技有限公司 | Resistive touch screen printing silver pulp, preparing method of resistive touch screen printing silver pulp and use method of resistive touch screen printing silver pulp |
| CN105070349A (en) * | 2015-08-10 | 2015-11-18 | 东莞市通美电子科技有限公司 | Special conductive filament printing silver slurry for capacitive touch screen and preparation and application methods of special conductive filament printing silver slurry |
| CN105139919A (en) * | 2015-08-10 | 2015-12-09 | 东莞市通美电子科技有限公司 | Laser silver paste used for capacitive touch screen as well as preparation method and use method for laser silver paste |
| CN105653089A (en) * | 2015-12-30 | 2016-06-08 | 重庆松录科技有限公司 | Graphene touch screen and manufacturing method therefor |
| CN105677079A (en) * | 2015-12-30 | 2016-06-15 | 重庆松录科技有限公司 | Method for manufacturing touch screen |
| CN107759106A (en) * | 2017-09-27 | 2018-03-06 | 广东星弛光电科技有限公司 | A kind of manufacture method of mobile phone capacitive touch screen cover-plate glass |
| CN109298803A (en) * | 2018-12-12 | 2019-02-01 | 顾氏纳米科技（浙江）有限公司 | Nano Silver touch screen and preparation method thereof |
| CN112694261A (en) * | 2020-12-30 | 2021-04-23 | 盐城创盈利科技有限公司 | Conductive glass processing technology |
| CN113733723A (en) * | 2021-08-23 | 2021-12-03 | 连城县中触电子有限公司 | Automatic line body of touch-sensitive screen anterior segment printing |
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| WO2013018698A1 (en) * | 2011-07-29 | 2013-02-07 | 嶋田プレシジョン株式会社 | Manufacturing method for assembly of capacitance type touch panel, and display device provided with same |
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| CN104133603A (en) * | 2014-08-04 | 2014-11-05 | 金龙机电（东莞）有限公司 | Production process of capacitive screen functional piece and capacitive screen functional piece |
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2014
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2013018698A1 (en) * | 2011-07-29 | 2013-02-07 | 嶋田プレシジョン株式会社 | Manufacturing method for assembly of capacitance type touch panel, and display device provided with same |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105045457A (en) * | 2015-08-10 | 2015-11-11 | 东莞市通美电子科技有限公司 | Resistive touch screen printing silver pulp, preparing method of resistive touch screen printing silver pulp and use method of resistive touch screen printing silver pulp |
| CN105070349A (en) * | 2015-08-10 | 2015-11-18 | 东莞市通美电子科技有限公司 | Special conductive filament printing silver slurry for capacitive touch screen and preparation and application methods of special conductive filament printing silver slurry |
| CN105139919A (en) * | 2015-08-10 | 2015-12-09 | 东莞市通美电子科技有限公司 | Laser silver paste used for capacitive touch screen as well as preparation method and use method for laser silver paste |
| CN105653089A (en) * | 2015-12-30 | 2016-06-08 | 重庆松录科技有限公司 | Graphene touch screen and manufacturing method therefor |
| CN105677079A (en) * | 2015-12-30 | 2016-06-15 | 重庆松录科技有限公司 | Method for manufacturing touch screen |
| CN107759106A (en) * | 2017-09-27 | 2018-03-06 | 广东星弛光电科技有限公司 | A kind of manufacture method of mobile phone capacitive touch screen cover-plate glass |
| CN109298803A (en) * | 2018-12-12 | 2019-02-01 | 顾氏纳米科技（浙江）有限公司 | Nano Silver touch screen and preparation method thereof |
| CN112694261A (en) * | 2020-12-30 | 2021-04-23 | 盐城创盈利科技有限公司 | Conductive glass processing technology |
| CN113733723A (en) * | 2021-08-23 | 2021-12-03 | 连城县中触电子有限公司 | Automatic line body of touch-sensitive screen anterior segment printing |
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