CN103279250A - Capacity touch panel employing copper-plated conductive substrate - Google Patents
Capacity touch panel employing copper-plated conductive substrate Download PDFInfo
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- CN103279250A CN103279250A CN2013102410190A CN201310241019A CN103279250A CN 103279250 A CN103279250 A CN 103279250A CN 2013102410190 A CN2013102410190 A CN 2013102410190A CN 201310241019 A CN201310241019 A CN 201310241019A CN 103279250 A CN103279250 A CN 103279250A
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Abstract
The invention provides a capacity touch panel employing a copper-plated conductive substrate, and belongs to the field of capacity touch panels. The capacity touch panel comprises a cover lens arranged outmost, a sensor bonded with the cover lens and an LCM (liquid crystal module) attached on the inner side of the capacity touch panel. The sensor is manufactured by processes of firstly, sputtering copper foil on the conductive substrate through a film coating process; secondly, forming a copper film signal line graph on the conductive substrate by performing operations of exposure, development and etching on a copper plated film by the aid of a dry film photoresist; thirdly, forming a transparent conductive film graph with the copper film signal line graph on the conductive substrate with the copper film signal line graph by operations of exposure, development and etching; and fourthly, cutting to obtain the sensor. The capacity touch panel employing the copper plated conductive substrate has the advantages that raw materials and processing cost can be reduced, production efficiency can be increased, and productivity can be improved.
Description
Technical field
The present invention relates to the capacitive touch screen field, relate in particular to a kind of capacitive touch screen that adopts the copper facing conductive base.
Background technology
Touch screen is for the compound touch-screen on the electronic products such as mobile phone, e-book, digital camera, and wherein capacitance type touch control screen is the most frequently used a kind of in the touch screen.
Capacitance type touch control screen is to utilize the electric current induction of human body to carry out work, capacitance type touch control screen is four layers of compound glass screen normally, the inside surface of glass screen and interlayer respectively scribble one deck ITO(plated film electro-conductive glass), outermost layer is skim silicon soil glassivation, the ITO coating is as workplace, draw four electrodes on four angles, internal layer ITO is that screen layer is to guarantee good working environment; When user's finger touch is on capacitance type touch control screen, because people's bulk electric field, user and capacitance touching control screen surfaces form with a coupling capacitance (for high-frequency current, electric capacity can be considered as conductor), so finger siphons away a very little electric current from the touch point of capacitance touching control screen surfaces, this electric current divides the electrode on from capacitance type touch control screen four jiaos and flows out; The electric current of these four electrodes of flowing through is directly proportional to four jiaos distance with finger, and controller draws touch point position by the accurate Calculation to these four current ratios.
Existing capacitance type touch control screen generally includes following main element as shown in Figure 1: plated indium tin metal oxide ITO(Indium Tin Oxides at glass baseplate) the nano indium tin metal oxide ITO sensor 10 of pattern; The cover plate Cover Lens 11 that ITO sensor 10 is shielded; The optics double faced adhesive tape 12 that is used for bonding ITO sensor 10 and cover plate Cover Lens 11; Be used for calculating touch point and repay the flexible PCB 13 of giving processor, and the display screen 14 that is used for showing image.
Number of patent application is that 201110212106 Chinese patent discloses the patent of invention of " a kind of method for making of touch sensor ", mainly may further comprise the steps: S1, form one deck acid-proof ink at the ITO-Cu film, this acid-proof ink covers the sensor Cu line district that reserves; S2, the ITO-Cu film that will be formed with acid-proof ink etch away the Cu district that is not covered by acid-proof ink by ferric chloride solution; S3, by alkaline solution the acid-proof ink demoulding is handled, and cleaned; S4, the ITO-Cu film after handling through step S3 form one deck protection glue, and this protection glue covers the visible area of touch sensor; S5, the ITO that adopts Cu unnecessary in laser instrument etching at the dried quarter sensor Cu line district and this unnecessary Cu to cover take off cabling to form Cu; S6, the described protection glue of removal adopt laser to do and carve the interior ITO of instrument etching sensor visible area, with formation ITO pattern cabling; The foregoing invention content is compared with " a kind of capacitive touch screen that adopts the copper facing conductive base " that the present invention applies for, and following some weak point is arranged:
1, the live width line-spacing of making is bigger, and required cabling frame is bigger, and the difficulty that this has increased technological requirement has increased cost of manufacture;
2, technological requirement is comparatively complicated, and production acceptance rate and efficient are lower, are unfavorable for that company better reduces production costs.
Number of patent application is that 201210083380 Chinese patent discloses the patent of invention of " touch sensor and preparation method thereof and touch screen LCD ", touch sensor comprises in its patent of invention: touch sensitive layer, insulation course and the metal bridge of the touch sensitive layer of substrate, first direction, the second direction vertical with first direction, and utilize three mask plates to carry out three composition technologies and be made into touch sensor.Need to build complicated metal bridge in its invention, technological process is comparatively complicated, and production acceptance rate and efficient are low.
Summary of the invention
Technical matters to be solved by this invention is, a kind of capacitive touch screen of novel copper facing conductive base is provided, and can reduce starting material, processing cost, enhances productivity, thereby improves production capacity.
In order to solve the problems of the technologies described above, the capacitive touch screen of a kind of novel copper facing conductive base of the present invention comprises:
Be arranged on outermost cover plate Cover Lens, with the bonding sensor of cover plate Cover Lens, and be fitted in the Liquid Crystal Module LCM of described capacitive touch screen inboard, as improvements of the present invention, the making step of described sensor comprises: 1) by coating process with the Copper Foil sputter on conductive base, form the conductive base have copper plating film; 2) adopt the dry film photoresistance to form copper film signal wire figure through exposure, development and etching operation at conductive base to copper plating film; 3) the described conductive base that has copper film signal wire figure forms the transparent conducting film figure that has copper film signal wire figure through exposure, development and etching operation; 4) the described transparent conducting film figure that has copper film signal wire figure is cut, obtain described sensor.
Further, described cover plate Cover Lens and described sensor are bonded together by the optics double faced adhesive tape.
Further, the capacitive touch screen of described employing copper facing conductive base also comprises: link to each other with described sensor, be used for calculating touch point and repay the flexible PCB of giving processor.
Further, described cover plate Cover Lens is made by eyeglass.
The capacitive touch screen of copper facing conductive base provided by the present invention, it directly utilizes copper film as the sensor signal lines material, has reduced the cost of raw material.
Further, the capacitive touch screen of copper facing conductive base provided by the invention, the gold-tinted technology of employing photosensitive dry film, than existing ITO FILM+ silver slurry silk screen printing process, production cost is produced yield and production efficiency and all is greatly improved.
Further, the capacitive touch screen of copper facing conductive base provided by the present invention, it directly utilizes copper film as the sensor signal lines material, adopt the gold-tinted technology of photosensitive dry film, live width, line-spacing can be processed meticulouslyr, less than 50um, wiring space is required not quite more can satisfy narrow edge frame product designing requirement.
Description of drawings
In order to be illustrated more clearly in the present invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in invention or the description of the Prior Art below, apparently, accompanying drawing in describing below only is examples more of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is existing capacitive touch screen structural representation;
The existing disassembled schematic that extensively adopts the ITO sensor production technological process in the silver-colored FILM capacitive touch screen of starching of ITO FILM+ of Fig. 2;
The capacitive touch screen structural representation of Fig. 3 copper facing conductive base provided by the invention;
Fig. 4 is the disassembled schematic of the sensor production technological process in the capacitive touch screen of copper facing conductive base provided by the invention.
Embodiment
The capacitive touch screen of copper facing conductive base provided by the invention can reduce starting material and processing cost, enhances productivity, thereby improves production capacity.
Below in conjunction with the accompanying drawing among the present invention, the technical scheme among the present invention is clearly and completely described, obviously, described only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work belongs to the scope of protection of the invention.
Be the structural representation of the capacitive touch screen of copper facing conductive base provided by the invention referring to Fig. 3.Comprise Liquid Crystal Module LCM 1, sensor 2, cover plate Cover Lens 3, optics double faced adhesive tape 4 and flexible PCB 5; Liquid Crystal Module LCM 1 is used for the demonstration image, and it has comprised devices such as LCD and display control chip, the preferred LCD display of LCD, and its reaction velocity is fast, good contrast, the brightness height, visible angle is big, simultaneously rich color; As improvements of the present invention, the making step of described sensor comprises: 1) by coating process with the Copper Foil sputter on conductive base, form the conductive base have copper plating film; 2) adopt the dry film photoresistance to form copper film signal wire figure through exposure, development and etching operation at conductive base to copper plating film; 3) the described conductive base that has copper film signal wire figure forms the transparent conducting film figure that has copper film signal wire figure through exposure, development and etching operation; 4) the described transparent conducting film figure that has copper film signal wire figure is cut, obtain described sensor, described sensor cooperates touch-control IC(integratedcircuit) can make capacitive touch screen realize that single-point adds gesture or function of multi-spot touch; Cover plate Cover Lens 3 is for the protection of described sensor 2; Optics double faced adhesive tape 4 is used for bonding described cover plate Cover Lens 3 and described sensor 2; Flexible PCB 5 links to each other with described sensor 2, is used for calculating touch point and repayment to processor.
Be respectively the disassembled schematic of the sensor production technological process in the capacitive touch screen of the disassembled schematic of the ITO sensor production technological process in the existing FILM capacitive touch screen that extensively adopts ITO FILM+ silver slurry and copper facing conductive base provided by the invention referring to Fig. 2, Fig. 4.Comprise ITO FILM film 20 among described Fig. 2, obtain being printed with the ITO FILM film 21 of acid-proof ink at described ITO FILM film 20 printing acid-proof inks, solidify by the UV stove simultaneously, the described ITO FILM film that is cured is sprayed by etching solution, etch away the ITO FILM diaphragm area that is not covered by acid-proof ink, and through striping, clean, oven dry and silk-screen protection glue and curing operation, obtain etched ITO FILM film 22, printed silver slurry circuit obtains the ITO FILM film 23 of silk-screen silver slurry on described etched ITO FILM film 22, with the ITO FILM film of described silk-screen silver slurry by going to protect glue and cutting operation to obtain ITO sensor finished product 24; Comprise conductive base 30 among described Fig. 4, Copper Foil is formed copper facing conductive base 31 by the copper-plating technique sputter at described conductive base 30, the dry film photoresistance closely is pressed on the described copper facing conductive base 31, to fix by the circuit that the designs film film of making and copper facing conductive base 31 contrapositions that are pressed with dry film, be positioned in the exposure machine and expose, in developing apparatus, carry out development operation with the copper facing conductive base zone that it is good that developer solution will expose, spray the copper facing conductive base zone that etching has exposed with etching solution then, pass through striping again, clean, drying operation obtains the conductive base 32 with the copper film line pattern, with the conductive base 32 of described band copper film line pattern through overexposure, develop, etching, clean and air-dry operation, formation has the transparent conducting film figure 33 of copper film line pattern, the described transparent conducting film figure 33 that has the copper film line pattern by cutting operation, is obtained sensor finished product 34.
By above description as can be known, the present invention has following useful point:
(1) reduces starting material and processing cost, raising production yield and efficient.The ITO sensor of existing FILM capacitive touch screen extensively adopts ITO FILM+ silver slurry silk screen printing process, and not only starting material, processing cost are higher, and the production process complexity, require contraposition registering operation more, overlap off normal easily, cause yield and efficient not high.The capacitive touch screen of the copper facing conductive base that provides is provided, it directly utilizes copper film as ITO sensor signal lines material, gold-tinted technology in conjunction with adopting photosensitive dry film has not only reduced starting material and processing cost, and produce yield, the efficient aspect also improves a lot.
(2) satisfy narrow edge frame product designing requirement.The ITO sensor of existing FILM capacitive touch screen adopts ITO FILM+ silver slurry silk screen printing process, and desired live width line-spacing is bigger, and is very big to the wiring space requirement greater than 100um, can't satisfy narrow edge frame product designing requirement.The capacitive touch screen of copper facing conductive base provided by the present invention, it directly utilizes copper film as the sensor signal lines material, what adopt is the gold-tinted technology of photosensitive dry film, the live width line-spacing can be processed meticulouslyr, less than 50um, wiring space is required not quite more can satisfy narrow edge frame product designing requirement.
It should be noted that; what the present invention described is a kind of product form of the capacitive touch screen of copper facing conductive base; other satisfies constructed products of the present invention; not influence the factor of product performance inequality even material, device name, outward appearance, device are put sequential scheduling, still belongs to the scope of protection of the invention.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention does, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (4)
1. capacitive touch screen that adopts the copper facing conductive base comprises:
Be arranged on outermost cover plate Cover Lens, with the bonding sensor of cover plate Cover Lens, and be fitted in the Liquid Crystal Module LCM of described capacitive touch screen inboard, it is characterized in that the making step of described sensor comprises:
1) by coating process with the Copper Foil sputter on conductive base, form the conductive base have copper plating film;
2) adopt the dry film photoresistance to form copper film signal wire figure through exposure, development and etching operation at conductive base to copper plating film;
3) the described conductive base that has copper film signal wire figure forms the transparent conducting film figure that has copper film signal wire figure through exposure, development and etching operation;
4) the described transparent conducting film figure that has copper film signal wire figure is cut, obtain described sensor.
2. a kind of capacitive touch screen that adopts the copper facing conductive base according to claim 1 is characterized in that, described cover plate Cover Lens and described sensor are bonded together by the optics double faced adhesive tape.
3. a kind of capacitive touch screen that adopts the copper facing conductive base according to claim 1, it is characterized in that, the capacitive touch screen of described employing copper facing conductive base also comprises: link to each other with described sensor, be used for calculating touch point and repay the flexible PCB of giving processor.
4. according to each described a kind of capacitive touch screen that adopts the copper facing conductive base of claim 1-3, it is characterized in that described cover plate Cover Lens is made by eyeglass.
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| CN2013102410190A CN103279250A (en) | 2013-06-18 | 2013-06-18 | Capacity touch panel employing copper-plated conductive substrate |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440078A (en) * | 2013-09-18 | 2013-12-11 | 格林精密部件（惠州）有限公司 | Capacitor touch screen manufacturing process |
| CN103605448A (en) * | 2013-11-28 | 2014-02-26 | 广东泰通科技股份有限公司 | Manufacturing method for integrally forming circuit diagram of film-structure capacitive touch screen sensor and product manufactured through manufacturing method |
| CN104850281A (en) * | 2014-02-18 | 2015-08-19 | 谭本志 | Production process for capacitive touch screen |
| CN107636580A (en) * | 2015-05-29 | 2018-01-26 | Ｎｉｓｓｈａ株式会社 | The manufacture method of touch sensor |
| CN108762559A (en) * | 2018-05-25 | 2018-11-06 | 业成科技（成都）有限公司 | Touch screen and preparation method thereof |
| CN109213375A (en) * | 2018-09-06 | 2019-01-15 | 深圳市华鼎星科技有限公司 | A kind of manufacturing method of Variable Array capacitor and the double touch-control sensing panels of electromagnetism |
| CN110502147A (en) * | 2019-08-12 | 2019-11-26 | 隽美经纬电路有限公司 | A kind of flexibility touch screen display board and preparation method thereof and application |
| CN110825273A (en) * | 2018-08-10 | 2020-02-21 | 无锡变格新材料科技有限公司 | Manufacturing process of double-sided process sputtering film capacitive touch sensor |
| CN113179591A (en) * | 2021-04-29 | 2021-07-27 | 深圳市康冠商用科技有限公司 | Capacitor film material, manufacturing method thereof and capacitor screen |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1937889A (en) * | 2005-09-21 | 2007-03-28 | 富葵精密组件(深圳)有限公司 | Method for manufacturing flexible circuit board |
| US20110012845A1 (en) * | 2009-07-20 | 2011-01-20 | Rothkopf Fletcher R | Touch sensor structures for displays |
| CN201919237U (en) * | 2010-11-23 | 2011-08-03 | 嘉联益科技股份有限公司 | Flexible printed circuit board with plating layer structure |
| CN102214042A (en) * | 2011-06-07 | 2011-10-12 | 南京福莱克斯光电科技有限公司 | Method for manufacturing sensor structure based on charge transfer |
| CN102436319A (en) * | 2010-09-29 | 2012-05-02 | 可成科技股份有限公司 | Touch panel |
| CN202548814U (en) * | 2012-04-26 | 2012-11-21 | 格林精密部件（惠州）有限公司 | Capacitive touch-control screen with single-layer Film structure |
| CN203299798U (en) * | 2013-06-18 | 2013-11-20 | 格林精密部件（惠州）有限公司 | Capacitance touch control screen adopting copper plating conductive base material |
-
2013
- 2013-06-18 CN CN2013102410190A patent/CN103279250A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1937889A (en) * | 2005-09-21 | 2007-03-28 | 富葵精密组件(深圳)有限公司 | Method for manufacturing flexible circuit board |
| US20110012845A1 (en) * | 2009-07-20 | 2011-01-20 | Rothkopf Fletcher R | Touch sensor structures for displays |
| CN102436319A (en) * | 2010-09-29 | 2012-05-02 | 可成科技股份有限公司 | Touch panel |
| CN201919237U (en) * | 2010-11-23 | 2011-08-03 | 嘉联益科技股份有限公司 | Flexible printed circuit board with plating layer structure |
| CN102214042A (en) * | 2011-06-07 | 2011-10-12 | 南京福莱克斯光电科技有限公司 | Method for manufacturing sensor structure based on charge transfer |
| CN202548814U (en) * | 2012-04-26 | 2012-11-21 | 格林精密部件（惠州）有限公司 | Capacitive touch-control screen with single-layer Film structure |
| CN203299798U (en) * | 2013-06-18 | 2013-11-20 | 格林精密部件（惠州）有限公司 | Capacitance touch control screen adopting copper plating conductive base material |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103440078A (en) * | 2013-09-18 | 2013-12-11 | 格林精密部件（惠州）有限公司 | Capacitor touch screen manufacturing process |
| CN103605448A (en) * | 2013-11-28 | 2014-02-26 | 广东泰通科技股份有限公司 | Manufacturing method for integrally forming circuit diagram of film-structure capacitive touch screen sensor and product manufactured through manufacturing method |
| CN104850281A (en) * | 2014-02-18 | 2015-08-19 | 谭本志 | Production process for capacitive touch screen |
| CN107636580A (en) * | 2015-05-29 | 2018-01-26 | Ｎｉｓｓｈａ株式会社 | The manufacture method of touch sensor |
| CN107636580B (en) * | 2015-05-29 | 2020-07-07 | Ｎｉｓｓｈａ株式会社 | Method for manufacturing touch sensor |
| CN108762559A (en) * | 2018-05-25 | 2018-11-06 | 业成科技（成都）有限公司 | Touch screen and preparation method thereof |
| CN110825273A (en) * | 2018-08-10 | 2020-02-21 | 无锡变格新材料科技有限公司 | Manufacturing process of double-sided process sputtering film capacitive touch sensor |
| CN109213375A (en) * | 2018-09-06 | 2019-01-15 | 深圳市华鼎星科技有限公司 | A kind of manufacturing method of Variable Array capacitor and the double touch-control sensing panels of electromagnetism |
| CN110502147A (en) * | 2019-08-12 | 2019-11-26 | 隽美经纬电路有限公司 | A kind of flexibility touch screen display board and preparation method thereof and application |
| CN113179591A (en) * | 2021-04-29 | 2021-07-27 | 深圳市康冠商用科技有限公司 | Capacitor film material, manufacturing method thereof and capacitor screen |
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Address after: 516025 Huizhou City, Guangdong Province, the three digital Industrial Park Applicant after: Guangdong Green precision parts Limited by Share Ltd Address before: Three Huicheng Guangdong District, Huizhou City, the number of Digital Industrial Park Applicant before: Green Precision Components (Huizhou) Co. Ltd. |
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Application publication date: 20130904 |