CN203433502U - Capacitive touch screen - Google Patents
Capacitive touch screen Download PDFInfo
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- CN203433502U CN203433502U CN201320598498.7U CN201320598498U CN203433502U CN 203433502 U CN203433502 U CN 203433502U CN 201320598498 U CN201320598498 U CN 201320598498U CN 203433502 U CN203433502 U CN 203433502U
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- ito film
- ito
- touch screen
- film assembly
- circuit board
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Abstract
The utility model discloses a capacitive touch screen which comprises an ITO Film component and a cover plate Cover Lens arranged on the ITO Film component and used for protecting the ITO Film component, wherein the Cover Lens is bonded together with the ITO Film component through an optical adhesive; the ITO Film component comprises an ITO sensor area used for sensing a touch point, and a connection circuit board area used for transmitting the touch point to a processor; the ITO sensor area and the connection circuit board area are integrally formed. According to the utility model, the processes about separately manufacturing and pressing of a flexible printed circuit board of an original capacitive touch screen are eliminated, the production process of the capacitive touch screen is simplified, raw material and processing cost are effectively reduced, thickness and weight of products are further effectively reduced, and the production efficiency and the qualification rate of finished products are effectively improved.
Description
Technical field
The utility model relates to communication and electronic technology field, in particular, relates to a kind of capacitance touch screen.
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 (OCA) 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.
Utility model content
The purpose of this utility model is to overcome above-mentioned defect of the prior art, provides a kind of realization by ITO sensor and the integrated capacitance touch screen of connecting circuit board.
The purpose of this utility model 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 had the ITO Film of ITO pattern and consisted of printing or metal routing radium-shine or that gold-tinted technique is arranged on ITO Film 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, the silver-colored circuit of described metal routing for making by printed silver sizing process.
The utility model 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, the utility model capacitance touch screen 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 described in the utility model;
Fig. 3 is the structural representation of capacitance touch screen described in the utility model.
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 utility model embodiment 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 utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, the every other embodiment that those of ordinary skills obtain under the prerequisite of not making creative work, belongs to the scope that the utility model is protected.
A kind of capacitance touch screen is provided, 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 ITO Film 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 utility model 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 1 is had the ITO Film of ITO pattern and consisted of printing or metal routing radium-shine or that gold-tinted technique is arranged on ITO Film 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 1 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 utility model 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, the silver-colored circuit that described metal routing is made for the technique of starching by printed silver.Certainly, described metal routing can also be realized by other technique, such as radium-shine or gold-tinted etc.
The utility model capacitance touch screen during fabrication, comprises the steps:
Step 3 is made metal routing on large stretch of ITO Film of etching ITO pattern.Comprise: 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, and make for connecting the golden finger of mainboard in the tail end in described 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.
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.
Compared with prior art, the utility model capacitance touch screen during fabrication, 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 utility model; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present utility model and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection domain of the present utility model.
Claims (5)
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 had the ITO Film of ITO pattern and consisted of printing or metal routing radium-shine or that gold-tinted technique is arranged on ITO Film 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, the silver-colored circuit of described metal routing for making by printed silver sizing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320598498.7U CN203433502U (en) | 2013-09-26 | 2013-09-26 | Capacitive touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320598498.7U CN203433502U (en) | 2013-09-26 | 2013-09-26 | Capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203433502U true CN203433502U (en) | 2014-02-12 |
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ID=50062529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320598498.7U Expired - Fee Related CN203433502U (en) | 2013-09-26 | 2013-09-26 | Capacitive touch screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203433502U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543894A (en) * | 2013-09-26 | 2014-01-29 | 广东欧珀移动通信有限公司 | Capacitive touch screen and manufacturing method thereof |
| CN104097386A (en) * | 2014-08-01 | 2014-10-15 | 中环高科（天津）股份有限公司 | Screen drawer manufacturing technology for mobile phone lens silk-screen printing |
-
2013
- 2013-09-26 CN CN201320598498.7U patent/CN203433502U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103543894A (en) * | 2013-09-26 | 2014-01-29 | 广东欧珀移动通信有限公司 | Capacitive touch screen and manufacturing method thereof |
| CN104097386A (en) * | 2014-08-01 | 2014-10-15 | 中环高科（天津）股份有限公司 | Screen drawer manufacturing technology for mobile phone lens silk-screen printing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |