CN103543894A - Capacitive touch screen and manufacturing method thereof - Google Patents
Capacitive touch screen and manufacturing method thereof Download PDFInfo
- Publication number
- CN103543894A CN103543894A CN201310445558.6A CN201310445558A CN103543894A CN 103543894 A CN103543894 A CN 103543894A CN 201310445558 A CN201310445558 A CN 201310445558A CN 103543894 A CN103543894 A CN 103543894A
- Authority
- CN
- China
- Prior art keywords
- ito film
- ito
- film assembly
- touch screen
- metal routing
- 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.)
- Pending
Links
Images
Abstract
The invention discloses a capacitive touch screen and a manufacturing method of the capacitive touch screen. The capacitive touch screen comprises an ITO Film assembly and a Cover Lens arranged on the ITO Film assembly and used for protecting the ITO Film assembly. The Cover Lens and the ITO Film assembly adhere together through optical cement. The ITO Film assembly comprises an ITO sensor area used for sensing a touch point and a connecting circuit board area used for transmitting the touch point to a processor. The ITO sensor area and the connecting circuit board area are formed in an integrated mode. The effect that independent manufacturing and press fit of flexible circuit boards of an original capacitive touch screen are removed is achieved, production processes of the touch screen are simplified, and raw material and processing cost are effectively reduced. Meanwhile, the thickness and weight of the product can be effectively reduced, and production efficiency and the qualified rate of a finished product can be effectively improved.
Description
Technical field
The present invention relates to communication and electronic technology field, in particular, relate to a kind of capacitance touch screen and manufacture method thereof.
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 touch screen is the most frequently used a kind of in touch screen.Existing, there are two large types in capacitance touch screen: a class is Glass capacitance touch screen, and another kind of is Film capacitance touch screen.The touch-control principle of this two classes touch-screen is the same, and still, its structure is different with manufacturing process.Relative Glass capacitance touch screen, Film capacitance touch screen has following advantage: 1, manufacturing process is serigraphy---and simple and quick; 2, product line cost of investment is low; 3, can make the thickness of touch-screen thinner.Therefore, the research and development of Film capacitance touch screen are more and more.Existing Film capacitance touch screen has the types such as GFF, G1F, GF2.
With reference to Fig. 1, existing Film capacitance touch screen generally includes: the film (Film) of take is coated with the ITO sensor 201 of indium tin metal oxide (ITO, Indium Tin Oxides) pattern as base material; For the cover plate (Cover Lens) 202 that ITO sensor is shielded; Optical cement for bonding ITO sensor 201 with cover plate 202; And for transmitting touch point to the flexible PCB (FPC) 203 of processor.Described flexible PCB (FPC) 203 realized and being electrically connected to ITO sensor 201 by process for pressing.
Therefore the ITO sensor of existing Film capacitance touch screen and flexible PCB are independently assemblies of difference, need to manufacture separately, and in capacitance touch screen manufacturing process, need to be by process for pressing by flexible PCB and the pressing of ITO sensor, and realize and being electrically connected to.This not only causes production cost high, processing procedure is loaded down with trivial details, complicated, and due to existing touch-screen trend future development thinner, with better function, therefore the circuit that ITO sensor docks with flexible PCB is more and more thinner, density is more and more higher, caused process for pressing more and more difficult, thereby caused the qualification rate of pressing lower, serious impact the production efficiency of capacitance touch screen, cost and qualification rate.
Summary of the invention
The object of the invention is to overcome above-mentioned defect of the prior art, provide a kind of realization by ITO sensor and the integrated capacitance touch screen of connecting circuit board.
Another object of the present invention is to overcome above-mentioned defect of the prior art, a kind of manufacture method of above-mentioned capacitance touch screen is provided.
Object of the present invention can be by taking following technical scheme to reach:
A kind of capacitance touch screen is provided, comprises ITO Film assembly, and be arranged on ITO Film assembly the Cover Lens for the protection of described ITO Film assembly;
Described Cover Lens and ITO Film assembly are bonded together by optical cement;
Described ITO Film assembly comprises the ITO sensor regions for sensing touch point, and for transmitting touch point to the connecting circuit board district of processor, described ITO sensor regions and connecting circuit board district are one-body molded.
Furthermore, the tail end in described connecting circuit board district is provided with for connecting the golden finger of mainboard.
Furthermore, described ITO Film assembly can be individual layer ITO Film assembly, can be also double-deck ITO Film assembly.
Furthermore, every one deck ITO Film assembly is to have the ITO Film of ITO pattern and the metal routing being arranged on ITO Film to form by etching; The metal routing of described ITO sensor regions and the metal routing in connecting circuit board district are formed in one.
As a kind of preferred scheme, described metal routing is silver-colored circuit.
The manufacture method that a kind of capacitance touch screen is provided, comprises the steps:
Step 4, cuts apart the large stretch of ITO Film that completes metal routing, makes single ITO Film assembly; Described ITO Film assembly comprises integrated ITO sensor regions and connecting circuit board district;
Step 5 is coated optical cement between single ITO Film assembly and Cover Lens, and both are bonding;
Step 6, carries out finished product electrical measurement.
Furthermore, in step 3, describedly on large stretch of ITO Film of etching ITO pattern, make metal routing, comprising: by printing or radium-shine or the gold-tinted technique integrated making metal routing of ITO sensor regions and the metal routing in connecting circuit board district.
As a kind of preferred scheme, in step 3, describedly on large stretch of ITOFilm of etching ITO pattern, make metal routing, specifically refer to: by printed silver sizing process, realize the metal routing of the integrated ITO of completing sensor regions and the metal routing in connecting circuit board district on large stretch of ITO Film.
Furthermore, step 3 also comprises, in the tail end in described connecting circuit board district, makes for connecting the golden finger of mainboard.
Furthermore, in step 4, described ITO Film assembly can be individual layer ITO Film assembly, can be also double-deck ITO Film assembly.
The present invention has following advantage and effect with respect to prior art:
1, by ITO sensor regions and connecting circuit board district is one-body molded, realized traditional ITO sensor and the integrally manufactured moulding of flexible PCB, break traditional difference and independently manufactured the high processing cost technique of ITO sensor and flexible PCB, effectively reduced starting material and processing cost.Can also effectively alleviate thickness and the weight of product simultaneously, be more conducive to capacitance touch screen trend gentlier, thinner future development.
2, capacitance touch screen of the present invention is in manufacture process, the flexible PCB having removed in original capacitance touch screen production run is made separately and flexible PCB pressing process, simplified the production procedure of touch-screen, and effectively enhanced productivity and the qualification rate of finished product.
3, by jointly adopting TIO Film as base material TIO sensor regions and connecting circuit board district, then on TIO Film, realize the metal routing of ITO sensor regions and the metal routing in connecting circuit board district is one-body molded, thereby realize the function of the flexible PCB of integrating traditional on original ITO sensor, there is production technology simple, accuracy requirement is low, production efficiency is high, finished product yield advantages of higher.
Accompanying drawing explanation
Fig. 1 is traditional capacitance touch-screen decomposition texture schematic diagram;
Fig. 2 is the decomposition texture schematic diagram of capacitance touch screen of the present invention;
Fig. 3 is the structural representation of capacitance touch screen of the present invention.
In accompanying drawing, the list of parts of each label representative is as follows:
1.ITO Film assembly, ，12. connecting circuit board district, 11.ITO sensor regions, 2.Cover Lens, 3. golden finger, 4. optical cement.
Embodiment
The capacitance touch screen that the embodiment of the present invention provides, can simplify production technology, reduce starting material, processing cost, improves product percent of pass, production efficiency, also alleviates thickness and the weight of product simultaneously.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in 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.
The embodiment of the present invention 1 provides a kind of capacitance touch screen, and with reference to Fig. 2 and Fig. 3, this capacitance touch screen comprises ITO Film assembly 1, and is arranged on the Cover Lens2(for the protection of described ITOFilm assembly 1 on ITO Film assembly 1 and also claims cover plate); Wherein,
Described Cover Lens2 and ITO Film assembly 1 also claim OCA by optical cement 4() be bonded together;
Described ITO Film assembly 1 comprises the ITO sensor regions 11 for sensing touch point, and for transmitting touch point to the connecting circuit board district 12 of processor, 11Yu connecting circuit board district 12, described ITO sensor regions is one-body molded.The tail end in described connecting circuit board district 12 is provided with for connecting the golden finger 3 of mainboard.
In fact, described connecting circuit board district 12 is just equivalent to flexible PCB in the past, the present invention is by ITO Film assembly 1 11Yu connecting circuit board district, integrated molding ITO sensor regions 12, therefore the flexible PCB having removed in original touch-screen production run is made separately and flexible PCB pressing process, simplify touch screen structure, optimized touch-screen production procedure.Due to without pressing flexible PCB, therefore effectively raise finished product yield and production efficiency.
As a kind of preferred scheme, described ITO Film assembly 1 can be individual layer ITO Film assembly, can be also double-deck ITO Film assembly.And every one deck ITO Film assembly includes 11He connecting circuit board district, ITO sensor regions 12.
Furthermore, every one deck ITO Film assembly is to have the ITO Film of ITO pattern and the metal routing being arranged on ITO Film to form by etching; And the metal routing of ITO sensor regions 11 and the metal routing in connecting circuit board district 12 of every one deck ITO Film assembly are formed in one.Wherein:
ITO (Indium Tin Oxides) is: nano indium tin metal oxide, there is good electric conductivity and the transparency, and can cut off harmful electron irradiation, ultraviolet ray and far infrared.After being sprayed in plastics and electronic display, strengthen electric conductivity and transparent in cut off harmful electron irradiation and ultraviolet, infrared.And Film (also claiming the film) is a kind of transparent film, be widely used in LCDs field.The material of described Film is PET.PET is the abbreviation of polyester, and it is with low cost, pliability is good.
The common TIO Film that adopts in 11He connecting circuit board district, TIO of the present invention sensor regions 12 is as base material, then on TIO Film, realize the metal routing of ITO sensor regions and the metal routing in connecting circuit board district is one-body molded, thereby realize the function of the flexible PCB of integrating traditional on original ITO sensor, there is production technology simple, accuracy requirement is low, production efficiency is high, finished product yield advantages of higher.
In the present embodiment, as a kind of preferred scheme, described metal routing is silver-colored circuit, and the technique of starching by printed silver realizes the cabling of making on ITO Film.Certainly, described metal routing can also be realized by other technique, such as radium-shine or gold-tinted etc.
The embodiment of the present invention 2 provides a kind of manufacture method of capacitance touch screen, and the method comprises the steps:
Furthermore, described preparation Cover Lens, comprises cutting, the strengthening of Cover Lens, the technological processes such as ink for screen printing.
Furthermore; described on large stretch of ITO Film etching ITO pattern; comprise: first make the half tone that ITO pattern is corresponding; by half tone, on large stretch of ITO Film, print acidproof anti-etching ink UV light solid; the ITO circuit needing in order to protection; finally by crossing etching, unwanted ITO circuit etching is fallen, remaining is exactly the ITO pattern that we need.
Furthermore, describedly on large stretch of ITO Film of etching ITO pattern, make metal routing, comprising: by printing or radium-shine or the gold-tinted technique integrated making metal routing of ITO sensor regions 11 and the metal routing in connecting circuit board district 12.
In the present embodiment, as preferably, by printed silver sizing process, realize the integrated metal routing of ITO sensor regions 11 and the metal routing in connecting circuit board district 12 of completing on large stretch of ITO Film.Its detailed process is: first make half tone corresponding to silver slurry circuit, then silver slurry is printed on large stretch of ITO Film of etching ITO pattern, technique is simple.
Step 4, cuts apart the large stretch of ITO Film that completes metal routing, makes single ITO Film assembly 1; Described single ITO Film assembly 1 comprises the integrated ITO sensor regions 11 for sensing touch point and for transmitting touch point to the connecting circuit board district 12 of processor.
Obvious, in actual applications, described ITO Film assembly 1 can be individual layer ITO Film assembly, can be also double-deck ITO Film assembly.If double-deck ITO Film assembly, this two-layer ITO Film assembly is mutually bonding overlapping.
Step 5 is coated optical cement 4 between ITO Film assembly 1 and Cover Lens2, and both are bonding;
Step 6, carries out finished product electrical measurement.By finished product electrical measurement, be qualified product.
Furthermore, in step 3, the tail end that is also included in described connecting circuit board district 12 is made for connecting the golden finger of mainboard.When making metal routing, go back the golden finger 3 that integration system connects circuit board area 12 tail ends, manufacturing process is simple.
Compared with prior art, the manufacture method difference of capacitance touch screen of the present invention is, the present invention has realized the integrated function of having integrated traditional flexible PCB on original ITO sensor, the flexible PCB that whole production run has been removed in original touch-screen production run is made and flexible PCB pressing process, simplify touch screen structure, optimize touch-screen production procedure, improved production yield and production efficiency.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (10)
1. a capacitance touch screen, is characterized in that, comprises ITO Film assembly (1), and is arranged on the upper Cover Lens(2 for the protection of described ITO Film assembly (1) of ITO Film assembly (1));
Described Cover Lens(2) be bonded together by optical cement (4) with ITO Film assembly (1);
Described ITO Film assembly (1) comprises the ITO sensor regions (11) for sensing touch point, and for transmitting touch point to the connecting circuit board district (12) of processor, described ITO sensor regions (11) is one-body molded with connecting circuit board district (12).
2. capacitance touch screen according to claim 1, is characterized in that, the tail end in described connecting circuit board district (12) is provided with the golden finger (3) for connecting mainboard.
3. capacitance touch screen according to claim 1, is characterized in that, described ITO Film assembly (1) can be individual layer ITO Film assembly, can be also double-deck ITO Film assembly.
4. capacitance touch screen according to claim 3, is characterized in that, every one deck ITO Film assembly (1) is to have the ITO Film of ITO pattern and the metal routing being arranged on ITO Film to form by etching; The metal routing of the metal routing of described ITO sensor regions (11) and connecting circuit board district (12) is formed in one.
5. capacitance touch screen according to claim 4, is characterized in that, described metal routing is silver-colored circuit.
6. a manufacture method for the capacitance touch screen described in claim 1 to 5 any one, is characterized in that, comprises the steps:
Step 1, preparation Cover Lens(2);
Step 2, etching ITO pattern on large stretch of ITO Film;
Step 3 is made metal routing on large stretch of ITO Film of etching ITO pattern;
Step 4, cuts apart the large stretch of ITO Film that completes metal routing, makes single ITO Film assembly (1); Described ITO Film assembly (1) comprises integrated ITO sensor regions (11) and connecting circuit board district (12);
Step 5, at single ITO Film assembly (1) and Cover Lens(2) between coat optical cement, and both are bonding;
Step 6, carries out finished product electrical measurement.
7. the manufacture method of capacitance touch screen according to claim 6, it is characterized in that, in step 3, describedly on large stretch of ITO Film of etching ITO pattern, make metal routing, comprising: by printing or radium-shine or the metal routing of gold-tinted technique integrated making ITO sensor regions (11) and the metal routing of connecting circuit board district (12).
8. the manufacture method of capacitance touch screen according to claim 6, it is characterized in that, in step 3, describedly on large stretch of ITO Film of etching ITO pattern, make metal routing, specifically refer to: by printed silver sizing process, realize the metal routing of the integrated ITO of completing sensor regions (11) and the metal routing of connecting circuit board district (12) on large stretch of ITO Film.
9. according to the manufacture method of capacitance touch screen described in claim 6 to 8 any one, it is characterized in that, step 3 also comprises, in the tail end in described connecting circuit board district (12), makes for connecting the golden finger (3) of mainboard.
10. the manufacture method of capacitance touch screen according to claim 1, is characterized in that, in step 4, described ITO Film assembly (1) can be individual layer ITO Film assembly, can be also double-deck ITO Film assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310445558.6A CN103543894A (en) | 2013-09-26 | 2013-09-26 | Capacitive touch screen and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310445558.6A CN103543894A (en) | 2013-09-26 | 2013-09-26 | Capacitive touch screen and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103543894A true CN103543894A (en) | 2014-01-29 |
Family
ID=49967408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310445558.6A Pending CN103543894A (en) | 2013-09-26 | 2013-09-26 | Capacitive touch screen and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103543894A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106445229A (en) * | 2016-09-07 | 2017-02-22 | 无锡格菲电子薄膜科技有限公司 | Ultra-narrow-bezel graphene touch sensor and fabrication method thereof |
| CN108268182A (en) * | 2018-01-23 | 2018-07-10 | 江苏欧帝电子科技有限公司 | A kind of preparation method of touch sensing, touch control film and touch control film |
| WO2019001068A1 (en) * | 2017-06-28 | 2019-01-03 | 京东方科技集团股份有限公司 | Flexible touch-control screen and method for manufacturing same |
| CN113010034A (en) * | 2020-12-15 | 2021-06-22 | 苏州伟之佳光电科技有限公司 | Production method of touch display |
| CN113076021A (en) * | 2020-01-03 | 2021-07-06 | 京东方科技集团股份有限公司 | Touch substrate, manufacturing method thereof and display device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100156846A1 (en) * | 2008-12-23 | 2010-06-24 | Flextronics Ap, Llc | Single substrate capacitive touch panel |
| CN102280164A (en) * | 2011-06-07 | 2011-12-14 | 南京福莱克斯光电科技有限公司 | Integrated flexible touch screen double-faced indium tin oxide (ITO) membrane structure |
| CN102981656A (en) * | 2011-09-02 | 2013-03-20 | 迎辉科技股份有限公司 | Integrated touch panel device |
| CN203433502U (en) * | 2013-09-26 | 2014-02-12 | 广东欧珀移动通信有限公司 | Capacitive touch screen |
-
2013
- 2013-09-26 CN CN201310445558.6A patent/CN103543894A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100156846A1 (en) * | 2008-12-23 | 2010-06-24 | Flextronics Ap, Llc | Single substrate capacitive touch panel |
| CN102280164A (en) * | 2011-06-07 | 2011-12-14 | 南京福莱克斯光电科技有限公司 | Integrated flexible touch screen double-faced indium tin oxide (ITO) membrane structure |
| CN102981656A (en) * | 2011-09-02 | 2013-03-20 | 迎辉科技股份有限公司 | Integrated touch panel device |
| CN203433502U (en) * | 2013-09-26 | 2014-02-12 | 广东欧珀移动通信有限公司 | Capacitive touch screen |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106445229A (en) * | 2016-09-07 | 2017-02-22 | 无锡格菲电子薄膜科技有限公司 | Ultra-narrow-bezel graphene touch sensor and fabrication method thereof |
| WO2019001068A1 (en) * | 2017-06-28 | 2019-01-03 | 京东方科技集团股份有限公司 | Flexible touch-control screen and method for manufacturing same |
| CN108268182A (en) * | 2018-01-23 | 2018-07-10 | 江苏欧帝电子科技有限公司 | A kind of preparation method of touch sensing, touch control film and touch control film |
| CN113076021A (en) * | 2020-01-03 | 2021-07-06 | 京东方科技集团股份有限公司 | Touch substrate, manufacturing method thereof and display device |
| CN113076021B (en) * | 2020-01-03 | 2024-01-23 | 京东方科技集团股份有限公司 | Touch substrate, manufacturing method thereof and display device |
| CN113010034A (en) * | 2020-12-15 | 2021-06-22 | 苏州伟之佳光电科技有限公司 | Production method of touch display |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI424348B (en) | Flexible projective capacitive touch sensor structure | |
| CN105579938A (en) | Capacitive curved touch panel and method for fabrication thereof | |
| CN103543894A (en) | Capacitive touch screen and manufacturing method thereof | |
| CN102629177A (en) | Capacitive touch screen and manufacture method thereof | |
| CN202815764U (en) | Touch-control panel and display device thereof | |
| CN203894715U (en) | Flexible touch screen and touch device | |
| US10866680B2 (en) | Touch panel with single plate and manufacturing method thereof | |
| CN202615358U (en) | Capacitance type touch screen | |
| CN106095176A (en) | A kind of copper facing nano-silver thread touch screen and manufacture method thereof | |
| KR20120072186A (en) | Touch panel and method for manufacturing electrode member | |
| CN202600664U (en) | Capacitive touch screen | |
| CN103605443B (en) | A kind of manufacture craft of touch-screen of PG structure | |
| CN106201040A (en) | The manufacture method of touch screen, display device and touch screen | |
| CN203433502U (en) | Capacitive touch screen | |
| CN204808272U (en) | Touch panel with fingerprint identification function | |
| CN102122223A (en) | Capacitive touch panel and manufacturing method thereof | |
| JP3167028U (en) | Decorative frame for touch panel | |
| CN204480204U (en) | Built-in type touch display screen module | |
| CN203982347U (en) | Contact panel | |
| CN204155240U (en) | A kind of novel touch-control display module | |
| CN105204705A (en) | Ultrathin GG touch screen and manufacturing technique for ultrathin GG touch screen | |
| CN103543889B (en) | Monolayer capacitive touch screen preparation method | |
| CN204595807U (en) | Touch-screen and display device | |
| KR101133967B1 (en) | Capacitive overlay touch screen panel integrated with window and mathod for manufacturing there of | |
| KR101133952B1 (en) | Capacitive overlay touch screen panel integrated with window and mathod for manufacturing there of |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140129 |