CN102280164B - Integrated flexible touch screen double-faced indium tin oxide (ITO) membrane structure - Google Patents
Integrated flexible touch screen double-faced indium tin oxide (ITO) membrane structure Download PDFInfo
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- CN102280164B CN102280164B CN201110150577A CN201110150577A CN102280164B CN 102280164 B CN102280164 B CN 102280164B CN 201110150577 A CN201110150577 A CN 201110150577A CN 201110150577 A CN201110150577 A CN 201110150577A CN 102280164 B CN102280164 B CN 102280164B
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Abstract
The invention relates to an integrated flexible double-faced indium tin oxide (ITO) membrane structure. In the structure, a central layer is made of a flexible macromolecular substrate material; two surfaces of the substrate material are provided with touch areas and flexible circuit board areas; touch area ITO membranes are arranged on the touch areas; and flexible circuit board area ITO membranes are arranged on the flexible circuit board areas. In the integrated ITO membrane, the functions of flexible circuit boards are integrated, and electronic circuits and ITO touch surfaces can be arranged on one substrate, so the process of stitching the ITO membranes and the flexible circuit boards is eliminated, requirements on the line width and the accuracy of the flexible circuit boards are reduced, the reliability is enhanced, the yield is improved, the cost is reduced, and touch panels are thinned.
Description
Technical field
The invention belongs to touch-screen manufacturing technology field, relate in particular to a kind of two-sided ITO film of integrated flexibility that supplies touch-screen to use.
Background technology
The application of touch-screen is along with the development of information-intensive society is more and more general, and the touch-screen product has begun to have formed industry in China at present, and just at high speed development.The shipment amount of money of contact panel in 2010 will reach about 4,500,000,000 dollars, and global contact panel shipment amount will be above 1,400,000,000 in 2015.
Preceding order mainly contains the touch-screen of several types, and they are respectively: resistance-type (bilayer), surface capacitance type and inductance capacitance formula, surface acoustic wave type, infrared type, and bending wave formula, active digital transducer formula and optical imagery formula.They can be divided into two types again, and one type of needs ITO such as the first three touch-screen, does not need ITO in the another kind of structure, such as several kinds of screens in back.ITO is the abbreviation of Indium Tin Oxides.As the nano indium tin metal oxide, have the good conductivity and the transparency, can cut off harmful electron radiation, ultraviolet ray and far infrared.Therefore, be sprayed on glass, on plastics and the electronic display after, when strengthening conductivity and the transparency, cut off harmful electron radiation and ultraviolet, infrared.ITO is a kind of N type oxide semiconductor-tin indium oxide, and ito thin film is an indium tin oxide transparent conductive semiconductor film, two performance index is arranged usually: resistivity and light transmittance.
Conductive film required in present most of enterprise production all adopts the ITO film, and employed conductive film all is the ITO film on touch-screen, flexible PCB.
Because the ITO conducting film of prior art is different assemblies with flexible PCB, need to realize connecting, in the process of pressing through process for pressing; Because the user is lighter and thinner to touch panel and the pursuit of more function; Make that the circuit that need dock is more and more thinner, density is increasingly high, has caused the decrease in yield of pressing; Also increasingly high to equipment precision requirement and technological requirement simultaneously, become the bottleneck that the restriction production capacity promotes and cost reduces.
Summary of the invention
The technical problem that solves:The present invention aims to provide the two-sided ITO film of a kind of integrated flexibility, and this integrated ITO film has been integrated the flexible PCB function, and electronic circuit and ITO touch face are realized in a substrate; The pressing working procedure that no longer needs ITO film and flexible PCB; Reduced requirement, strengthened reliability, improved yields flexible PCB live width and precision; Reduced cost, and attenuate the thickness of touch panel.
Technical scheme:The two-sided ITO membrane structure of integrated flexibility; This structure centre layer is the flexible macromolecule base material; The base material two sides is equipped with touch area and flexible PCB zone, and the touch area is provided with touch area ITO film, and the flexible PCB zone is provided with flexible PCB area I TO film.
The flexible macromolecule base material is PETG, polymethyl methacrylate, Merlon, Triafol T, polyether sulfone, polyolefin or their mixture material.
The flexible macromolecule base material can curl, and thickness is 100nm-200nm.
Beneficial effect:Integrated ITO film of the present invention has been integrated the flexible PCB function; Electronic circuit and ITO touch face are realized in a substrate, no longer needed the pressing working procedure of ITO film and flexible PCB, reduced requirement flexible PCB live width and precision; Strengthened reliability; Improved yields, reduced cost, and attenuate the thickness of touch panel.
Description of drawings
The structural representation of the two-sided ITO film of the integrated flexible touch screen of Fig. 1; The a touch area; B flexible PCB zone;
The structural representation of the two-sided ITO film of the integrated flexible touch screen of Fig. 2; 5 flexible macromolecule base materials; 6 touch area ITO films; 7 flexible PCB area I TO films;
Fig. 3 is the prior art structural representation, substrate 1; ITO layer 2; Flexible PCB 3; Stitching surface 4.
Embodiment
The two-sided ITO film of a kind of integrated flexibility involved in the present invention; Structure is as shown in Figure 1; Base material 5 is selected lightweight, heat-resisting transparent polymer material for use, like PETG (PET), polymethyl methacrylate (PMMA), Merlon (PC), Triafol T (TAC), polyether sulfone (PES), polyolefin or their mixture material etc., base material light weight, thin thickness; And can curl, thickness is 100nm-200nm.On base material, plate ITO rete 6, utilize and twine magnetron sputtering,, behind the applying diaphragm, continue sputter coating at another side again after coating single side is accomplished, process double-faced flexible ITO earlier with ITO film on the face sputter of substrate through the magnetron sputtering plating mode.
In order to promote properties of product better, in actual coating process, adopted the subregion coating technique, with touch area and flexible PCB zone difference sputter,, regulate suitable resistivity and transition zone according to the different demands of back operation.After cutting, give next procedure or cut by next procedure.
The manufacturing procedure of filter of the present invention is:
1, at first the diaphragm on the face of polymeric membrane 5 is peeled off.
2, then in twining filming equipment with the exposed surface of polymeric membrane 5 on the sputter ITO film 6 that supplies the touch area to use, the flexible circuit plate portion shelters from mask.
3, change mask, shelter from the touch area, sputter ITO film 7 in the flexible PCB zone.
4, the bonding upper protective film of next step one side that sputter is good is changed another side.
5, repeat the sputter that 2,3 steps are accomplished another side, bonding upper protective film.
The two-sided ITO membrane structure of integrated flexibility; This structure centre layer is a flexible macromolecule base material 5; The base material two sides is equipped with touch area and flexible PCB zone, and the touch area is provided with touch area ITO film 6, and the flexible PCB zone is provided with flexible PCB area I TO film 7.Flexible macromolecule base material 5 is PETG, polymethyl methacrylate, Merlon, Triafol T, polyether sulfone, polyolefin or their mixture material.Flexible macromolecule base material 5 can curl, and thickness is 100nm-200nm.
Not relating to all identical with the prior art prior art that maybe can adopt of part in the literary composition realizes.The above is the preferred embodiments of the present invention, but the present invention also is not limited to above only embodiment, on embodiment, does the protection range that improvement also will be regarded as the utility model slightly.
Claims (3)
1. the two-sided ITO membrane structure of integrated flexibility; It is characterized in that this structure centre layer is flexible macromolecule base material (5); The base material two sides is equipped with touch area and flexible PCB zone; The touch area is provided with touch area ITO film (6); The flexible PCB zone is provided with flexible PCB area I TO film (7), and the ITO film on the said two sides all is the ITO that form with the subregion coating technique, thereby the ITO on this two sides that forms constitutes holistic ITO film by touch area and flexible PCB zone.
2. the two-sided ITO membrane structure of integrated flexibility according to claim 1 is characterized in that flexible macromolecule base material (5) is PETG, polymethyl methacrylate, Merlon, Triafol T, polyether sulfone, polyolefin or their mixture material.
3. the two-sided ITO membrane structure of integrated flexibility according to claim 1 is characterized in that flexible macromolecule base material (5) can curl, and thickness is 100nm-200nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110150577A CN102280164B (en) | 2011-06-07 | 2011-06-07 | Integrated flexible touch screen double-faced indium tin oxide (ITO) membrane structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110150577A CN102280164B (en) | 2011-06-07 | 2011-06-07 | Integrated flexible touch screen double-faced indium tin oxide (ITO) membrane structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102280164A CN102280164A (en) | 2011-12-14 |
| CN102280164B true CN102280164B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110150577A Expired - Fee Related CN102280164B (en) | 2011-06-07 | 2011-06-07 | Integrated flexible touch screen double-faced indium tin oxide (ITO) membrane structure |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103677388A (en) * | 2012-09-03 | 2014-03-26 | 胜华科技股份有限公司 | Touch control panel |
| CN103345337B (en) * | 2013-07-15 | 2016-08-17 | 深圳南玻显示器件科技有限公司 | Flexible touch screen and preparation method thereof |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2768128Y (en) * | 2004-09-28 | 2006-03-29 | 台虹科技股份有限公司 | Composite plastic base plate for flat panel display |
| CN102005255A (en) * | 2010-11-23 | 2011-04-06 | 苏州禾盛新型材料股份有限公司 | Double-sided conducting film for projection type capacitive touch panel |
| CN202120631U (en) * | 2011-06-07 | 2012-01-18 | 南京福莱克斯光电科技有限公司 | Integrated flexible touch screen double-faced ITO membrane structure |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI282937B (en) * | 2004-03-29 | 2007-06-21 | Fu-Lin Ye | Button device for a touch panel |
| JP2006072694A (en) * | 2004-09-02 | 2006-03-16 | Matsushita Electric Ind Co Ltd | Touch panel |
| JP4532316B2 (en) * | 2005-03-22 | 2010-08-25 | 日本板硝子株式会社 | Touch panel |
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2011
- 2011-06-07 CN CN201110150577A patent/CN102280164B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2768128Y (en) * | 2004-09-28 | 2006-03-29 | 台虹科技股份有限公司 | Composite plastic base plate for flat panel display |
| CN102005255A (en) * | 2010-11-23 | 2011-04-06 | 苏州禾盛新型材料股份有限公司 | Double-sided conducting film for projection type capacitive touch panel |
| CN202120631U (en) * | 2011-06-07 | 2012-01-18 | 南京福莱克斯光电科技有限公司 | Integrated flexible touch screen double-faced ITO membrane structure |
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| CN102280164A (en) | 2011-12-14 |
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