CN201859664U - Double-faced conductive membrane for projection type capacitance touch panel - Google Patents
Double-faced conductive membrane for projection type capacitance touch panel Download PDFInfo
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- CN201859664U CN201859664U CN2010206202729U CN201020620272U CN201859664U CN 201859664 U CN201859664 U CN 201859664U CN 2010206202729 U CN2010206202729 U CN 2010206202729U CN 201020620272 U CN201020620272 U CN 201020620272U CN 201859664 U CN201859664 U CN 201859664U
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- Prior art keywords
- layer
- etching
- pet film
- membrane
- touch panel
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- 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.)
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- 239000012528 membrane Substances 0.000 title abstract description 8
- 238000005530 etching Methods 0.000 claims abstract description 34
- 229920002799 BoPET Polymers 0.000 claims description 34
- 238000002407 reforming Methods 0.000 claims description 18
- 239000003990 capacitor Substances 0.000 claims description 14
- 210000004276 hyalin Anatomy 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000003746 surface roughness Effects 0.000 claims description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 abstract description 7
- 230000004048 modification Effects 0.000 abstract description 5
- 238000012986 modification Methods 0.000 abstract description 5
- -1 polyethylene terephthalate Polymers 0.000 abstract description 5
- 229910044991 metal oxide Inorganic materials 0.000 abstract description 4
- 239000004568 cement Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 abstract description 3
- 239000005020 polyethylene terephthalate Substances 0.000 abstract 5
- 239000007788 liquid Substances 0.000 abstract 1
- 238000004544 sputter deposition Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000007747 plating Methods 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 229910021578 Iron(III) chloride Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- XEEVLJKYYUVTRC-UHFFFAOYSA-N oxomalonic acid Chemical compound OC(=O)C(=O)C(O)=O XEEVLJKYYUVTRC-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000000992 sputter etching Methods 0.000 description 1
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Abstract
The utility model relates to a double-faced conductive membrane for a projection type capacitance touch panel. A surface modification layer is coated on the front surface of a PET (polyethylene terephthalate) membrane, an anti-reflection layer is arranged on the surface modification layer, an etching transparent conductive layer is sputtered on the anti-reflection layer, another surface modification layer is also coated on the back surface of the PET membrane and is also provided with an anti-reflection layer, and the second anti-reflection layer is also sputtered with an etching transparent conductive layer. The anti-reflection layers on the front surface and the back surface of the PET membrane consist of two transparent layers with different refraction rates, when light passes through the anti-reflection layers with different refraction rates, the waveform of reflected light can form damaged interference, more than 98% reflected light of external environments can be eliminated, the etching transparent conductive layers on the front surface and the back surface of the PET membrane are sputtered with nano indium tin metal oxide in a vacuum sputtering mode and then are in graph etching via etching liquid so as to form required graphs for laying a circuit of the projection type capacitance touch panel, accordingly the step of sticking the conductive membrane by optical cement is omitted, and manufacturing cost is greatly saved.
Description
Technical field
The utility model relates to a kind of projecting type capacitor contact panel double-sided conductive film.
Background technology
According to prediction in the up-to-date 2010 contact panel market shipment forecast analysis reports of delivering of the global plane Display Search of display industry research institution, the shipment amount of projected capacitive touch panel will be grown up significantly, estimate that the projected capacitive touch panel shipment output value in 2010 will surmount the electric resistance touch-control panel shipment output value, become the main application technology of contact panel.Apple uses the projecting type capacitor technology widely on self product, and as iphone and the ipod that released in 2007, and the ipad that released in 2010 has obtained the good market response.
So-called projecting type capacitor touch technology is caught interelectrode capacitance variations for seeing through, and carries out the position of touch detecting.Because knowing from experience, the people carries moisture, be outstanding conductor, therefore when the close electrode of human body, capacitance between finger and the electrode can increase, as long as it is big that investigate out the direct capacitance quantitative change of which bar line this moment, just can learn which has been put by touch-control, because this kind touch-control mechanism possesses multinomial advantage, also become the touch-control solution first-selection of present electronic product, relatedly cause supporting electrically conducting transparent membrane technology to be able to tremendous development.
The utility model content
The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of projecting type capacitor contact panel conducting film is provided.
The purpose of this utility model is achieved through the following technical solutions:
Projecting type capacitor contact panel double-sided conductive film, base material is the PET film, and characteristics are: the front of described PET film scribbles surface reforming layer, and described surface reforming layer is provided with anti-reflecting layer, and sputter has the etching transparency conducting layer on the described anti-reflecting layer; The back side of described PET film also scribbles surface reforming layer, also is provided with anti-reflecting layer on the described surface reforming layer, on the described anti-reflecting layer also sputter the etching transparency conducting layer is arranged.
Further, above-mentioned projecting type capacitor contact panel double-sided conductive film is covered with the PE diaphragm on the etching transparency conducting layer in described PET film front.
Further, above-mentioned projecting type capacitor contact panel double-sided conductive film is covered with the PE diaphragm on the etching transparency conducting layer at the described PET film back side.
Again further, above-mentioned projecting type capacitor contact panel double-sided conductive film, the anti-reflecting layer in described PET film front is formed by two kinds of different hyaline layers of refractive index with the anti-reflecting layer at the PET film back side, and its surface roughness is less than 100nm.
The substantive distinguishing features of technical solutions of the utility model and progressive being mainly reflected in:
The anti-reflecting layer at the anti-reflecting layer in PET film front and the PET film back side is formed by two kinds of different hyaline layers of refractive index, light is when having the anti-reflecting layer of different refractivity, can produce the effect of part penetrating component reflection, therefore catoptrical waveform can form destruction interference, eliminate the reverberation of 98% above external environment, reach the effect that improves picture display effect; The etching transparency conducting layer at the etching transparency conducting layer in PET film front and the PET film back side uses the mode sputter nano indium tin metal oxide of vacuum splashing and plating, with etching solution transparency conducting layer is carried out the figure etching then, form the figure that the projected capacitive touch panel laying-out needs; Conductive layer be directly on anti-reflecting layer the mode by vacuum splashing and plating form, saved and used optical cement to paste the step of conducting film, saved manufacturing cost greatly, be applied on the projected capacitive touch panel preferably.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1: schematic cross-section of the present utility model;
The implication of each Reference numeral among the figure:
The 1-PET film, 2-surface reforming layer, 3-anti-reflecting layer, 4-etching transparency conducting layer, 5-PE diaphragm, 6-surface reforming layer, 7-anti-reflecting layer, 8-etching transparency conducting layer, 9-PE diaphragm.
Embodiment
Develop a kind of projecting type capacitor contact panel conducting film at projected capacitive touch panel, as shown in Figure 1, base material is a polyethylene terephtalate film 1, the light transmittance of PET film 1 is more than 90%, dielectric strength is 16.9KV/mm, but shielding of ultraviolet, gas and vapor permeability are low; The front of PET film 1 scribbles surface reforming layer 2, surface reforming layer 2 is provided with anti-reflecting layer 3, anti-reflecting layer is made up of two different hyaline layers of refractive index, its surface roughness is less than 100nm, sputter has etching transparency conducting layer 4 on the anti-reflecting layer 3, is covered with PE diaphragm 5 after 4 etchings of etching transparency conducting layer; The back side of PET film 1 scribbles surface reforming layer 6, also is provided with anti-reflecting layer 7 on the surface reforming layer 6, on the anti-reflecting layer 7 also sputter etching transparency conducting layer 8 is arranged, be covered with PE diaphragm 9 after 8 etchings of etching transparency conducting layer.
Wherein, the surface reforming layer 6 at the surface reforming layer 2 in PET film front and the PET film back side can be by any enforcement in roller coat or the spraying method; The material of the etching transparency conducting layer 8 at the etching transparency conducting layer 4 in PET film front and the PET film back side is nano indium tin metal oxide, wherein Ln
2O
3And Sn
2O
3Ratio be 9: 1; It is the mixed liquor of oxalic acid and ferric chloride aqueous solutions that the etching transparency conducting layer 8 at the etching transparency conducting layer 4 in PET film front and the PET film back side is carried out the etching solution that the figure etching uses, and the proportioning of its mesoxalic acid and ferric chloride aqueous solutions is 1: 1.
Adopting the polyethylene terephtalate film is substrate, and under the prerequisite of giving the material high light transmittance, the possibility that provides composite material to be processed into different structure is coated with the adhesive force that surface reforming layer 2 improves substrate and anti-reflecting layer 3 on PET film 1 front; On PET film 1 back side, be coated with the adhesive force that surface reforming layer 6 improves substrate and anti-reflecting layer 7; The anti-reflecting layer 7 at the anti-reflecting layer 3 in PET film front and the PET film back side is formed by two kinds of different hyaline layers of refractive index, its surface roughness is less than 100nm, light is when having the anti-reflecting layer of different refractivity, can produce the effect of part penetrating component reflection, therefore catoptrical waveform can form destruction interference, eliminate the reverberation of 98% above external environment, reach the effect that improves picture display effect.The etching transparency conducting layer 8 at the etching transparency conducting layer 4 in PET film front and the PET film back side uses the mode sputter nano indium tin metal oxide of vacuum splashing and plating, with etching solution transparency conducting layer is carried out the figure etching then, form the figure that the projected capacitive touch panel laying-out needs.Conductive layer of the present utility model be directly on anti-reflecting layer the mode by vacuum splashing and plating form, saved and used optical cement to paste the step of conducting film, saved manufacturing cost greatly; Be applied on the projected capacitive touch panel preferably.
It is emphasized that: above only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (4)
1. projecting type capacitor contact panel double-sided conductive film, base material is the PET film, it is characterized in that: the front of described PET film scribbles surface reforming layer, and described surface reforming layer is provided with anti-reflecting layer, and sputter has the etching transparency conducting layer on the described anti-reflecting layer; The back side of described PET film also scribbles surface reforming layer, also is provided with anti-reflecting layer on the described surface reforming layer, on the described anti-reflecting layer also sputter the etching transparency conducting layer is arranged.
2. projecting type capacitor contact panel double-sided conductive film according to claim 1 is characterized in that: be covered with the PE diaphragm on the etching transparency conducting layer in described PET film front.
3. projecting type capacitor contact panel double-sided conductive film according to claim 1 is characterized in that: be covered with the PE diaphragm on the etching transparency conducting layer at the described PET film back side.
4. projecting type capacitor contact panel double-sided conductive film according to claim 1, it is characterized in that: the anti-reflecting layer in described PET film front is formed by two kinds of different hyaline layers of refractive index with the anti-reflecting layer at the PET film back side, and its surface roughness is less than 100nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206202729U CN201859664U (en) | 2010-11-23 | 2010-11-23 | Double-faced conductive membrane for projection type capacitance touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206202729U CN201859664U (en) | 2010-11-23 | 2010-11-23 | Double-faced conductive membrane for projection type capacitance touch panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201859664U true CN201859664U (en) | 2011-06-08 |
Family
ID=44105465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206202729U Expired - Fee Related CN201859664U (en) | 2010-11-23 | 2010-11-23 | Double-faced conductive membrane for projection type capacitance touch panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201859664U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2013170607A1 (en) * | 2012-05-14 | 2013-11-21 | 南昌欧菲光科技有限公司 | Novel double-sided conductive film manufacturing process |
| CN103440904A (en) * | 2013-07-30 | 2013-12-11 | 南昌欧菲光科技有限公司 | Conductive film |
-
2010
- 2010-11-23 CN CN2010206202729U patent/CN201859664U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102005255B (en) * | 2010-11-23 | 2012-11-21 | 苏州禾盛新型材料股份有限公司 | Double-sided conducting film for projection type capacitive touch panel |
| WO2013170607A1 (en) * | 2012-05-14 | 2013-11-21 | 南昌欧菲光科技有限公司 | Novel double-sided conductive film manufacturing process |
| CN103440904A (en) * | 2013-07-30 | 2013-12-11 | 南昌欧菲光科技有限公司 | Conductive film |
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| 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 |
Granted publication date: 20110608 Termination date: 20141123 |
|
| EXPY | Termination of patent right or utility model |