CN204087182U - A kind of layer structure of CNT capacitive touch screen - Google Patents
A kind of layer structure of CNT capacitive touch screen Download PDFInfo
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- CN204087182U CN204087182U CN201420547736.6U CN201420547736U CN204087182U CN 204087182 U CN204087182 U CN 204087182U CN 201420547736 U CN201420547736 U CN 201420547736U CN 204087182 U CN204087182 U CN 204087182U
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- touch screen
- capacitive touch
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Abstract
The utility model relates to a kind of layer structure of CNT capacitive touch screen, it comprises cover layer, OCA optical cement layer and CNT transparent conductive film layer, wherein, this cover layer has end face and bottom surface, this CNT transparent conductive film layer has end face and bottom surface, this OCA optical cement layer is arranged between the bottom surface of this cover layer and the end face of this CNT transparent conductive film layer, this cover layer is made up of PC material, this CNT transparent conductive film layer is also provided with line layer, and this line layer is formed by silver-colored pulp material printing.
Description
Technical field
The utility model relates to a kind of layer structure of capacitive touch screen, particularly a kind of layer structure comprising the capacitive touch screen of nano-sized carbon tube layer.
Background technology
As everyone knows, CNT is by the curling seamless hollow tubular structure of CNT lamella.Have excellent electric property, high strength and pliability, stable chemical property and do not have the characteristics such as obvious characteristic absorption to visible ray and near infrared light, the film be made up of it is a kind of super flexibility " transparent " conductor.In addition, this film also has that cost is low, environmental friendliness, resourceful advantage.Current result of study has proved that carbon nanotube film has transparent conductivity that can be comparable with ITO, also be considered to be hopeful most to replace resource shortage, fragility ITO, become one of material of nesa coating of new generation, not only can meet the industries such as touch-screen, display, solar cell to the growing demand of nesa coating, and to promoting that the development of flexible device of new generation has great importance.
Different according to the number of plies, CNT can be divided into single wall, double-walled and multiple-wall carbon nanotube.These CNTs can in CVD growth course direct formation of film at surface, then transfer on transparent base and form transparent conductive film; Also can be distributed to equably in a certain solvent and form dispersion liquid, then be adopted by this dispersion liquid the technique such as filtration transfer method, lift dip coating, spraying process, spin-coating method, electrophoretic deposition, layer assembly method to be deposited as film on a transparent substrate.In addition, these CNTs can also make transparent conductive film with the compound such as CNT or conducting polymer.
Along with constantly advancing of modern multimedia infotech, and amusement, query facility continuous increase, the application of touch-screen is more and more extensive.And capacitive touch screen only needs to touch, and do not need that pressure just can produce signal, only needs once or completely do not need screen calibration, lower in light loss and system power dissipation, capacitive technologies is wear-resistant, the life-span is long after manufacture, the plurality of advantages such as when user uses maintenance cost is low.And CNT is as the one in new material, it has the advantage that can not be substituted equally in making touch-screen.The CNT in future and existing ITO conductive material are compared, CNT has excellent electric property, high strength and pliability, stable chemical property and does not have the characteristics such as obvious characteristic absorption to visible ray and near infrared light, also have that cost is low, environmental friendliness, resourceful advantage, these advantages all will show that CNT also becomes a kind of new material in alternative conventional I TO conductive material at last.
The shortcoming of the transparent conductive film material generally used at present is, outer field film easily scratches and stabs and cause touch screen function not normal; ITO conductive layer easily changes its characteristic by the change of external condition, and CNT is as " transparent " conductor of a kind of super flexibility, the shortcoming of traditional material can be overcome, but also do not occur nano-sized carbon tube layer being successfully produced on the layer structure in capacitive touch screen when concrete enforcement now, and this is the major defect for present technology.
Utility model content
The utility model provides a kind of layer structure of CNT capacitive touch screen, it utilizes nano carbon tube material to be made into CNT capacitive touch screen, compared with traditional material, be easier to observe and inspection, Petting Area CNT is adopted to add periphery cabling silver slurry as wire, the impedance of passage can be reduced, touch better effects if, and this is fundamental purpose of the present utility model.
Technical solution adopted in the utility model is: a kind of layer structure of CNT capacitive touch screen, it comprises cover layer, OCA optical cement layer and CNT transparent conductive film layer, wherein, this cover layer has end face and bottom surface, this CNT transparent conductive film layer has end face and bottom surface, this OCA optical cement layer is arranged between the bottom surface of this cover layer and the end face of this CNT transparent conductive film layer, this cover layer is made up of PC material, this CNT transparent conductive film layer is also provided with line layer, this line layer is formed by silver-colored pulp material printing, this CNT transparent conductive film layer comprises substrate layer and nano-sized carbon tube layer, this nano-sized carbon tube layer comprises CNT current-carrying part and etching part, this line layer ring is located at this CNT current-carrying part surrounding, and this line layer is electrically connected with this CNT current-carrying part, this CNT current-carrying part is made up of some transversely arranged CNT buss, the two ends of each this CNT bus are electrically connected with this line layer.
This line layer comprises some silver slurry wires, and each this silver slurry wire is all connected with this corresponding CNT bus.This line layer also comprises flexible circuit board bonding pad, and flexible circuit board is connected electrically on this flexible circuit board bonding pad, and the position be connected with this flexible circuit board bonding pad in this flexible circuit board is provided with adhesive layer.The bottom surface of this cover layer being coated with black ink layer, on the bottom surface of this cover layer, touching viewing area, key icon and camera form around being formed by this black ink layer, this black ink layer is also coated with black-out ink layer.
This substrate layer by polyethylene terephthalate, polycarbonate, polymethylmethacrylate, glass, in any one make.The thickness of this substrate layer is 0.125mm, 0.175mm, 0.188mm; 0.38mm, 0.5mm, 0.65mm; 0.5mm, 0.65mm; Any one thickness in 0.55mm, 0.7mm, 1.1mm.
The beneficial effects of the utility model are: the transparent conductive film with CNT is processed circuit pack by the method for laser-induced thermal etching, by binding FPC by the connection of the inside to mainboard end, one deck OCA is pasted again on CNT surface, finally cover plate is covered in above nano carbon tube material, is combined into a slice capacitive touch screen.This touch-screen is controlled to realize touch function by touch-control IC and complete machine mainboard.CNT capacitive touch screen is arranged on above display screen, for detecting the position of touch, when capacitance plate touches, just resolved the position coordinates of contact by touch-control IC, processor obtains the raw data touched, and removes interference, measuring and calculating spot pressure, sets up touch area, calculates accurate coordinates.
The utility model have employed novel conductive material " CNT ".For it, there is electric property, high strength and pliability, the stable chemical property of excellence and the characteristics such as obvious characteristic absorption are not had to visible ray and near infrared light, adopting the technique of the method for laser-induced thermal etching periphery silver slurry employing simultaneously serigraphy to make circuit pack.Have high transmission rate, stability high, make environmental protection, touch precisely, the feature such as Consumer's Experience sense is strong.
Technology of the present utility model is mainly towards the new material of touch-screen industry and the importing of manufacture craft, it can provide the CNT capacitive touch screen of high stability, some aspects that CNT capacitive touch screen is better than now conventional ITO touch-screen can also be experienced: 1, CNT capacitive touch screen of the present utility model have employed CNT as main composition material, compared with traditional ITO touch-screen, cost obviously reduces, in indium tin situation less and less, certainly will new material to be had to carry out alternative traditional ITO.2, CNT capacitive touch screen of the present utility model have employed CNT as main composition material, has very high transmittance.The image shown by touch-screen like this can be more true to nature, and color also can be truer.3, CNT capacitive touch screen of the present utility model have employed CNT as main composition material, because CNT has very high deflection degree, so just greatly reduces the situation causing dysfunction as ITO material because bending excessively.
Accompanying drawing explanation
Fig. 1 is the layer structure schematic diagram of cover layer of the present utility model, OCA optical cement layer and CNT transparent conductive film layer.
Fig. 2 is the layer structure schematic diagram that the utility model is connected with flexible circuit board.
Fig. 3 is the structural representation of line layer of the present utility model.
Fig. 4 is the position view of CNT current-carrying part of the present utility model and etching part.
Fig. 5 is the schematic diagram of cover layer of the present utility model.
Embodiment
As shown in Fig. 1 to 5, a kind of layer structure of CNT capacitive touch screen, it comprises cover layer 10, OCA optical cement layer 20 and CNT transparent conductive film layer 30, wherein, this cover layer 10 has end face and bottom surface, this CNT transparent conductive film layer 30 has end face and bottom surface, and this OCA optical cement layer 20 is arranged between the bottom surface of this cover layer 10 and the end face of this CNT transparent conductive film layer 30.
This cover layer 10 is made up of PC material, and this CNT transparent conductive film layer 30 is also provided with line layer 40, and this line layer 40 is formed by silver-colored pulp material printing.
During work, a low-voltage AC electric field is formed in this CNT transparent conductive film layer 30, when this CNT capacitance touch screen surfaces of user's finger touch, a coupling capacitance can be formed between finger and this CNT transparent conductive film layer 30, have a certain amount of Charger transfer to human body this moment, in order to recovery charge loss, electric charge supplements into from the corner of this CNT capacitive touch screen, the distance of the quantity of electric charge that all directions are supplemented and touch point is proportional, can extrapolate the position of touch point thus.
When concrete enforcement, this line layer 40 by the power voltage supply of 2.8V ~ 3.3V, and supports 1.8V ~ 3.3V interface level.
This CNT transparent conductive film layer 30 comprises substrate layer 31 and nano-sized carbon tube layer 32, wherein, this substrate layer 31 is made up of any one in PET (polyethylene terephthalate), PC (polycarbonate), PMMA (polymethylmethacrylate), glass
The thickness of this substrate layer 31 is 0.125mm, 0.175mm, 0.188mm; 0.38mm, 0.5mm, 0.65mm; 0.5mm, 0.65mm; Any one thickness in 0.55mm, 0.7mm, 1.1mm.
The transmittance of this CNT transparent conductive film layer 30 is 80 ~ 97.7%, and sheet resistance value is 30 ~ 400 Ω, the number of plies of this CNT transparent conductive film layer 30 when concrete enforcement
difference can be divided into single wall, double-walled and multiple-wall carbon nanotube.
When concrete enforcement, this nano-sized carbon tube layer 32 comprises CNT current-carrying part 321 and etching part 322, and this CNT current-carrying part 321 and this etching part 322 are formed by this nano-sized carbon tube layer 32 of laser-induced thermal etching.
This line layer 40 ring is located at this CNT current-carrying part 321 surrounding, and this line layer 40 is electrically connected with this CNT current-carrying part 321, and when concrete enforcement, this CNT current-carrying part 321 is made up of some transversely arranged CNT buss.The two ends of each this CNT bus are electrically connected with this line layer 40.
When concrete enforcement, this line layer 40 comprises some silver slurry wires, each this silver slurry wire is all connected with this corresponding CNT bus, this line layer 40 also comprises flexible circuit board bonding pad 41, flexible circuit board 42 is connected electrically on this flexible circuit board bonding pad 41, the position be connected with this flexible circuit board bonding pad 41 in this flexible circuit board 42 is provided with adhesive layer, thus fixes the relative position of this flexible circuit board 42 and this flexible circuit board bonding pad 41.
The bottom surface of this cover layer 10 being coated with black ink layer 11, on the bottom surface of this cover layer 10, touching viewing area 111, key icon 112 and camera form 113 around being formed by this black ink layer 11.
This black ink layer 11 is also coated with black-out ink layer, and the light-proofness that this black-out ink layer can increase ink can fill up some little pin holes simultaneously.
Claims (6)
1. the layer structure of a CNT capacitive touch screen, it is characterized in that: comprise cover layer, OCA optical cement layer and CNT transparent conductive film layer, wherein, this cover layer has end face and bottom surface, this CNT transparent conductive film layer has end face and bottom surface, this OCA optical cement layer is arranged between the bottom surface of this cover layer and the end face of this CNT transparent conductive film layer, this cover layer is made up of PC material, this CNT transparent conductive film layer is also provided with line layer, this line layer is formed by silver-colored pulp material printing
This CNT transparent conductive film layer comprises substrate layer and nano-sized carbon tube layer, this nano-sized carbon tube layer comprises CNT current-carrying part and etching part, this line layer ring is located at this CNT current-carrying part surrounding, and this line layer is electrically connected with this CNT current-carrying part, this CNT current-carrying part is made up of some transversely arranged CNT buss, and the two ends of each this CNT bus are electrically connected with this line layer.
2. the layer structure of a kind of CNT capacitive touch screen as claimed in claim 1, is characterized in that: this line layer comprises some silver slurry wires, and each this silver slurry wire is all connected with this corresponding CNT bus.
3. the layer structure of a kind of CNT capacitive touch screen as claimed in claim 2, it is characterized in that: this line layer also comprises flexible circuit board bonding pad, flexible circuit board is connected electrically on this flexible circuit board bonding pad, and the position be connected with this flexible circuit board bonding pad in this flexible circuit board is provided with adhesive layer.
4. the layer structure of a kind of CNT capacitive touch screen as claimed in claim 1, it is characterized in that: the bottom surface of this cover layer is coated with black ink layer, on the bottom surface of this cover layer, touch viewing area, key icon and camera form around being formed by this black ink layer, this black ink layer is also coated with black-out ink layer.
5. the layer structure of a kind of CNT capacitive touch screen as claimed in claim 1, is characterized in that: this substrate layer by polyethylene terephthalate, polycarbonate, polymethylmethacrylate, glass, in any one make.
6. the layer structure of a kind of CNT capacitive touch screen as claimed in claim 1, is characterized in that: the thickness of this substrate layer is 0.125mm, 0.175mm, 0.188mm; 0.38mm, 0.5mm, 0.65mm; 0.5mm, 0.65mm; Any one thickness in 0.55mm, 0.7mm, 1.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420547736.6U CN204087182U (en) | 2014-05-20 | 2014-09-23 | A kind of layer structure of CNT capacitive touch screen |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410213308.4 | 2014-05-20 | ||
| CN201410213308 | 2014-05-20 | ||
| CN201420547736.6U CN204087182U (en) | 2014-05-20 | 2014-09-23 | A kind of layer structure of CNT capacitive touch screen |
Publications (1)
| Publication Number | Publication Date |
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| CN204087182U true CN204087182U (en) | 2015-01-07 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410295246.6A Expired - Fee Related CN104049826B (en) | 2014-05-20 | 2014-06-26 | A kind of CNT capacitive touch screen and preparation method thereof |
| CN201420547736.6U Expired - Fee Related CN204087182U (en) | 2014-05-20 | 2014-09-23 | A kind of layer structure of CNT capacitive touch screen |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410295246.6A Expired - Fee Related CN104049826B (en) | 2014-05-20 | 2014-06-26 | A kind of CNT capacitive touch screen and preparation method thereof |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104461203B (en) * | 2014-12-22 | 2017-10-27 | 合肥鑫晟光电科技有限公司 | Cover plate and the film adhered method of touch-control sensing and touch-screen |
| CN106325630A (en) * | 2015-07-08 | 2017-01-11 | 江苏吉创光电有限公司 | Graphene multi-point touching capacitive touch screen |
| CN105930015B (en) * | 2016-04-13 | 2019-01-01 | 苏州触动电子科技有限公司 | A kind of production method of capacitance touching control screen |
| CN106093647B (en) * | 2016-06-24 | 2019-02-01 | 武汉精测电子集团股份有限公司 | The scribing line degradation detecting method and detection system of touch screen |
| CN107175940B (en) * | 2017-07-24 | 2019-01-29 | 维达力实业(深圳)有限公司 | Frame pattern screen printing method |
| CN109445635B (en) * | 2018-10-31 | 2022-04-01 | 维沃移动通信有限公司 | Mobile terminal and control method thereof |
| CN110143330A (en) * | 2019-05-16 | 2019-08-20 | 东莞市爱康电子科技有限公司 | A kind of rubberizing equipment |
| CN110750171A (en) * | 2019-09-27 | 2020-02-04 | 盈天实业(深圳)有限公司 | Touch sensor, preparation method thereof and touch display screen |
| CN113703612B (en) * | 2021-08-30 | 2023-09-22 | 业成科技（成都）有限公司 | Touch button and touch device |
| CN114076732B (en) * | 2021-09-24 | 2024-01-30 | 杭州天丰光电科技股份有限公司 | Incoming material detection process of hidden screen colorful touch film |
| CN113960845B (en) * | 2021-11-04 | 2023-08-29 | 业成科技（成都）有限公司 | Color-changing film, preparation method thereof, window and display screen |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8604332B2 (en) * | 2010-03-04 | 2013-12-10 | Guardian Industries Corp. | Electronic devices including transparent conductive coatings including carbon nanotubes and nanowire composites, and methods of making the same |
| CN102129336B (en) * | 2011-02-28 | 2014-02-05 | 中国科学院苏州纳米技术与纳米仿生研究所 | Capacitor touch pad based on carbon nanotube film |
| CN103164101A (en) * | 2013-04-03 | 2013-06-19 | 格林精密部件（惠州）有限公司 | Capacitance touch screen based on grapheme sensors |
| CN103455230A (en) * | 2013-09-26 | 2013-12-18 | 无锡宇宁光电科技有限公司 | Grapheme conductive film applied capacitive screen and manufacturing method thereof |
| CN103777834A (en) * | 2014-01-27 | 2014-05-07 | 无锡力合光电传感技术有限公司 | Single-chip capacitor touch screen based on organic glass pane and preparation method of single-chip capacitor touch screen |
-
2014
- 2014-06-26 CN CN201410295246.6A patent/CN104049826B/en not_active Expired - Fee Related
- 2014-09-23 CN CN201420547736.6U patent/CN204087182U/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN104049826B (en) | 2017-07-28 |
| CN104049826A (en) | 2014-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20200923 |