CN102207805A - Capacitive touch screen and manufacture method thereof - Google Patents
Capacitive touch screen and manufacture method thereof Download PDFInfo
- Publication number
- CN102207805A CN102207805A CN 201110137392 CN201110137392A CN102207805A CN 102207805 A CN102207805 A CN 102207805A CN 201110137392 CN201110137392 CN 201110137392 CN 201110137392 A CN201110137392 A CN 201110137392A CN 102207805 A CN102207805 A CN 102207805A
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- CN
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- Prior art keywords
- pet film
- printed circuit
- glass substrate
- touch screen
- capacitive touch
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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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- 238000000034 method Methods 0.000 title abstract description 6
- 238000004519 manufacturing process Methods 0.000 title abstract 3
- 239000011521 glass Substances 0.000 claims abstract description 44
- 229920002799 BoPET Polymers 0.000 claims abstract description 43
- 239000000758 substrate Substances 0.000 claims abstract description 32
- 230000003287 optical effect Effects 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 36
- 239000004568 cement Substances 0.000 claims description 12
- 239000012528 membrane Substances 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 9
- 238000007639 printing Methods 0.000 claims description 7
- 239000012790 adhesive layer Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 abstract description 2
- 239000006173 Good's buffer Substances 0.000 abstract 1
- 239000002202 Polyethylene glycol Substances 0.000 abstract 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 abstract 1
- 229920001223 polyethylene glycol Polymers 0.000 abstract 1
- 238000011112 process operation Methods 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- KKEYFWRCBNTPAC-UHFFFAOYSA-L terephthalate(2-) Chemical compound [O-]C(=O)C1=CC=C(C([O-])=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-L 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- SXHLTVKPNQVZGL-UHFFFAOYSA-N 1,2-dichloro-3-(3-chlorophenyl)benzene Chemical compound ClC1=CC=CC(C=2C(=C(Cl)C=CC=2)Cl)=C1 SXHLTVKPNQVZGL-UHFFFAOYSA-N 0.000 description 1
- 238000003854 Surface Print Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011990 functional testing Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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- Position Input By Displaying (AREA)
Abstract
The invention relates to a capacitive touch screen, comprising an ITO (Indium Tin Oxide) glass substrate provided with a printed circuit layer on the front side, wherein a PET (polyethylene glycol terephthalate) film is adhered on the outer side surface of the printed circuit layer. The invention also provides a manufacture method of the capacitive touch screen, which comprises the following steps of: binding: forming the printed circuit layer on the ITO glass substrate, and then binding a flexible circuit board to the ITO glass substrate to be connected with the printed circuit layer; and film sticking: sticking an optical clear resin to the PET film, and cutting the PET film into a small piece matching to the ITO glass substrate in size, and sticking the small PET film to the outer side surface of the printed circuit layer on the ITO glass substrate. In the invention, the traditional glass cover plate is replaced by the PET film, the device and the process operation for the sticking step are simplified; and the invention has low cost and high efficiency and is suitable for the mass production. The sticking of the PET film belongs to the film-glass sticking manner, and the product yield is up to 99%. The image distortion of the product is not easy to occur during using. During assembling, the casing presses against the soft PET film having a good buffer action, and the entire capacitive screen cannot be crushed.
Description
Technical field
The present invention relates to the touch-screen field, relate in particular to a kind of capacitive touch screen and preparation method thereof.
Background technology
At present, existing capacitance touch screen (being called for short " capacitance plate ") mainly adopts the version of upper strata glass cover-plate and lower floor's ito glass plate.Because its levels is glass, is fitting to a time-out, easily produce bubble between the layer glass, the product yield is very low, and upper strata employing glass cover-plate cost is very high, and because layer glass is sticked to form, thickness is thicker simultaneously.
In addition, the glass cover-plate on upper strata need cut with CNC equipment, and efficient is very low.Simultaneously, the mode that present capacitance plate structure only is fit to down adorn on the upper strata is assembled, and casing can not be pressed onto above the capacitance plate and assemble, otherwise capacitance plate is crushed.
Summary of the invention
Technical matters to be solved by this invention is, a kind of capacitive touch screen is provided, and makes processing procedure problem more rambunctious to solve common capacitive touch screen, reduces cost, improves yield.
The further technical matters to be solved of the present invention is, a kind of capacitive touch screen preparation method is provided, and makes processing procedure problem more rambunctious to solve common capacitive touch screen, reduces cost, improves yield.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
On the one hand, the invention provides a kind of capacitive touch screen, be included in the ito glass substrate that the front is provided with layer printed circuit board, also be pasted with the PET film at the outer surface of layer printed circuit board.
Further, the back side of described ito glass substrate also is provided with layer printed circuit board, and the layer printed circuit board outer surface at the ito glass substrate back side is pasted with the PET film.
Further, described PET film is pasted on the corresponding layer printed circuit board by adhesive layer.
Further, described adhesive layer is an optical cement.
Further, go back nation on the described layer printed circuit board flexible PCB is arranged surely.
On the other hand, the present invention also provides a kind of preparation method of aforesaid capacitive touch screen, and it comprises the steps:
Nation decides step, prints corresponding layer printed circuit board on ito glass substrate, flexible PCB is bonded on the ito glass substrate to link to each other with layer printed circuit board again;
Step of membrane sticking is attached to PET film surface with optical cement, and the PET film is cut into and the suitable small pieces of ito glass substrate size, the PET film of small pieces is attached to the outer surface of layer printed circuit board on the ito glass substrate.
Further, in the step of membrane sticking, before optical cement being attached on the PET film, first printing base colour on the PET film is attached to optical cement one side surface of PET film printing base colour again.
Further, the front of described ito glass substrate and the back side all are printed with layer printed circuit board, and corresponding nation has flexible PCB surely, and all post the PET film at the outer surface of layer printed circuit board.
Further, also carry out following deaeration step after the described step of membrane sticking: the product that will post film is delivered to the deaeration machine and is utilized air pressure that bond site is compressed, and eliminates bubble.
By adopting technique scheme, the present invention has following beneficial effect at least: owing to adopt the PET film to replace traditional glass cover-plate, not only the equipment of bonding process and technological operation all can greatly be simplified, laser or cutting die casing are adopted in the moulding of PET film, need not outsourcing, the touch-screen factory of specialty all can produce, and the efficient height is fit to produce in enormous quantities; And the applying of PET film belongs to the hard mode of soft subsides, and the product yield can reach more than 99%.
Two-layer PET film up and down is set, and its anti-scratch performance is good, also can guarantee standard, stable specific inductive capacity; And middle ito glass substrate is low resistance glass, has solved the touch-sensitive problem of capacitive touch screen well.Guarantee that touch-screen is difficult for image fault in use.
In addition, when assembling, the casing of capacitance plate just is pressed onto the PET film of capacitance plate, because the PET film is a soft material, has the comfort cushioning effect, and can not crush the whole capacitor screen.
Capacitive touch screen of the present invention can be widely used in industries such as panel computer, mobile phone, GPS, learning machine, PDA, automation equipment, military affairs, vehicle carried video system, vehicle-carrying DVD, touch display.
Description of drawings
Fig. 1 is the cross sectional representation of capacitive touch screen of the present invention.
Embodiment
Please refer to Fig. 1, the invention provides a kind of capacitive touch screen, comprise ito glass substrate 1, layer printed circuit board 2 and PET film 3.
Wherein, the front and back of described ito glass substrate 1 is equipped with layer printed circuit board 2, and described layer printed circuit board 2 is connected surely with flexible PCB (FPC) 20 nations.Normally elder generation molds described layer printed circuit board 2 at the surface printing of ito glass substrate 1, flexible PCB 20 is bonded on the ito glass substrate 1 to be electrically connected with the layer printed circuit board of respective side again.
And described PET film 3 is to be pasted on the ito glass substrate 1 on the outer surface of corresponding layer printed circuit board 2 by adhesive layer 30.According to the needs of product design, can only paste PET film 3 at layer printed circuit board 2 outer surfaces in ito glass front, also can paste PET film 3 at the outer surface of the layer printed circuit board 2 of front and back.Described adhesive layer preferably adopts optical cement.
On the other hand, the present invention also provides a kind of preparation method of aforesaid capacitive touch screen, and it comprises the steps:
Nation decides step, and printing molds layer printed circuit board on ito glass substrate, flexible PCB is bonded on the ito glass substrate to link to each other with layer printed circuit board again;
Step of membrane sticking is attached to PET film surface with optical cement, and the PET film is cut into and the suitable small pieces of ito glass substrate size, the PET film of small pieces is attached to the outer surface of the layer printed circuit board of ito glass substrate.
The deaeration step: the product that will post film is delivered to the deaeration machine and is utilized air pressure that bond site is compressed, and eliminates bubble because this step can be eliminated the bubble of bond site preferably, but and nonessential step, step of membrane sticking is operated when accurate, this step can be omitted.
In step of membrane sticking, before optical cement being attached on the PET film, printing base colour on the PET film earlier also, and then optical cement is attached to a side surface of PET film printing base colour.
Preferably, the front of described ito glass substrate and the back side all can be printed with layer printed circuit board, and corresponding nation has flexible PCB surely, and, all post the PET film at the outer surface of the layer printed circuit board of front and back.
After having carried out deaeration, can carry out follow-up such as conventional operations such as functional test, visual testing, packing shipment.
Claims (9)
1. a capacitive touch screen is included in the ito glass substrate that the front is provided with layer printed circuit board, it is characterized in that, also is pasted with the PET film at the outer surface of layer printed circuit board.
2. capacitive touch screen as claimed in claim 1 is characterized in that the back side of described ito glass substrate also is provided with layer printed circuit board, and the layer printed circuit board outer surface at the ito glass substrate back side is pasted with the PET film.
3. capacitive touch screen as claimed in claim 1 or 2 is characterized in that, described PET film is pasted on the corresponding layer printed circuit board by adhesive layer.
4. capacitive touch screen as claimed in claim 3 is characterized in that, described adhesive layer is an optical cement.
5. capacitive touch screen as claimed in claim 1 or 2 is characterized in that, going back nation on the described layer printed circuit board has flexible PCB surely.
6. the preparation method as each described capacitive touch screen of claim 1 ~ 5 is characterized in that, comprises the steps:
Nation decides step, prints corresponding layer printed circuit board on ito glass substrate, flexible PCB is bonded on the ito glass substrate to link to each other with layer printed circuit board again;
Step of membrane sticking is attached to PET film surface with optical cement, and the PET film is cut into and the suitable small pieces of ito glass substrate size, the PET film of small pieces is attached to the respective surfaces of ito glass substrate.
7. the preparation method of capacitive touch screen as claimed in claim 6 is characterized in that, in the step of membrane sticking, before optical cement being attached on the PET film, first printing base colour on the PET film is attached to optical cement one side surface of PET film printing base colour again.
8. the preparation method of capacitive touch screen as claimed in claim 6 is characterized in that, the front of described ito glass substrate and the back side all are printed with circuit, and corresponding nation has flexible PCB surely, and all posts the PET film at the outer surface of layer printed circuit board.
9. the preparation method of capacitive touch screen as claimed in claim 6 is characterized in that, also carries out following deaeration step after the described step of membrane sticking: the product that will post film is delivered to the deaeration machine and is utilized air pressure that bond site is compressed, and eliminates bubble.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110137392 CN102207805A (en) | 2011-05-25 | 2011-05-25 | Capacitive touch screen and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110137392 CN102207805A (en) | 2011-05-25 | 2011-05-25 | Capacitive touch screen and manufacture method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102207805A true CN102207805A (en) | 2011-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110137392 Pending CN102207805A (en) | 2011-05-25 | 2011-05-25 | Capacitive touch screen and manufacture method thereof |
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| Country | Link |
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| CN (1) | CN102207805A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819372A (en) * | 2012-08-08 | 2012-12-12 | 赣州市德普特科技有限公司 | Capacitive touch screen and manufacturing method thereof |
| CN103144410A (en) * | 2013-03-27 | 2013-06-12 | 城步新鼎盛电子科技有限公司 | Defoaming method of capacitance touching fitting process |
| CN103207722A (en) * | 2013-04-01 | 2013-07-17 | 江西合力泰科技股份有限公司 | Capacitive touch screen production process |
| CN103257767A (en) * | 2013-01-30 | 2013-08-21 | 福建科创光电有限公司 | Integrated capacitive sensing touch screen adopting two frame silk-screen and production method of integrated capacitive sensing touch screen |
| CN103257774A (en) * | 2013-05-10 | 2013-08-21 | 深圳市立德通讯器材有限公司 | One glass solution (OGS) capacitive touch screen and manufacturing method thereof |
| CN103257775A (en) * | 2013-05-14 | 2013-08-21 | 南京点面光电有限公司 | Capacitive touch screen of G1F structure |
| CN103294308A (en) * | 2013-05-09 | 2013-09-11 | 晟光科技股份有限公司 | Improved GF (glass-film)-structured touch screen and connection method for FPC (flexible printed circuit) thereof |
| CN103302947A (en) * | 2012-03-13 | 2013-09-18 | 苏州市健邦触摸屏技术有限公司 | Screen pasting technology of capacitance multi-point touch screen |
| US9760227B2 (en) | 2013-01-30 | 2017-09-12 | Fujian Kechuang Photoelectric Co., Ltd. | OGS captive touch panel and method for manufacturing same |
| CN107783684A (en) * | 2016-08-24 | 2018-03-09 | 镇江华锐科技信息有限公司 | A kind of anti-interference nanometer touch-control film of low-loss |
| CN115810701A (en) * | 2022-12-15 | 2023-03-17 | 安徽熙泰智能科技有限公司 | Silicon-based micro-display product module packaging process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201222242Y (en) * | 2008-06-11 | 2009-04-15 | 深圳市德普特光电显示技术有限公司 | Capacitance touch screen |
| US20100139955A1 (en) * | 2008-12-05 | 2010-06-10 | Ding Hua Long | Capacitive touch panel having dual resistive layer |
| CN202093499U (en) * | 2011-05-25 | 2011-12-28 | 赣州市德普特科技有限公司 | Capacitive touch screen |
-
2011
- 2011-05-25 CN CN 201110137392 patent/CN102207805A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201222242Y (en) * | 2008-06-11 | 2009-04-15 | 深圳市德普特光电显示技术有限公司 | Capacitance touch screen |
| US20100139955A1 (en) * | 2008-12-05 | 2010-06-10 | Ding Hua Long | Capacitive touch panel having dual resistive layer |
| CN202093499U (en) * | 2011-05-25 | 2011-12-28 | 赣州市德普特科技有限公司 | Capacitive touch screen |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302947A (en) * | 2012-03-13 | 2013-09-18 | 苏州市健邦触摸屏技术有限公司 | Screen pasting technology of capacitance multi-point touch screen |
| CN102819372A (en) * | 2012-08-08 | 2012-12-12 | 赣州市德普特科技有限公司 | Capacitive touch screen and manufacturing method thereof |
| CN102819372B (en) * | 2012-08-08 | 2016-05-25 | 赣州市德普特科技有限公司 | Capacitive touch screen and manufacture method thereof |
| CN103257767A (en) * | 2013-01-30 | 2013-08-21 | 福建科创光电有限公司 | Integrated capacitive sensing touch screen adopting two frame silk-screen and production method of integrated capacitive sensing touch screen |
| US9760227B2 (en) | 2013-01-30 | 2017-09-12 | Fujian Kechuang Photoelectric Co., Ltd. | OGS captive touch panel and method for manufacturing same |
| CN103144410A (en) * | 2013-03-27 | 2013-06-12 | 城步新鼎盛电子科技有限公司 | Defoaming method of capacitance touching fitting process |
| CN103207722A (en) * | 2013-04-01 | 2013-07-17 | 江西合力泰科技股份有限公司 | Capacitive touch screen production process |
| CN103294308A (en) * | 2013-05-09 | 2013-09-11 | 晟光科技股份有限公司 | Improved GF (glass-film)-structured touch screen and connection method for FPC (flexible printed circuit) thereof |
| CN103294308B (en) * | 2013-05-09 | 2017-07-11 | 晟光科技股份有限公司 | A kind of improved GF structures touch-screen and its FPC connection methods |
| CN103257774A (en) * | 2013-05-10 | 2013-08-21 | 深圳市立德通讯器材有限公司 | One glass solution (OGS) capacitive touch screen and manufacturing method thereof |
| CN103257774B (en) * | 2013-05-10 | 2016-01-20 | 深圳市立德通讯器材有限公司 | A kind of OGS capacitive touch screen and manufacture method thereof |
| CN103257775A (en) * | 2013-05-14 | 2013-08-21 | 南京点面光电有限公司 | Capacitive touch screen of G1F structure |
| CN103257775B (en) * | 2013-05-14 | 2016-12-28 | 南京点触智能科技有限公司 | A kind of G1F structure condenser type touch screen |
| CN107783684A (en) * | 2016-08-24 | 2018-03-09 | 镇江华锐科技信息有限公司 | A kind of anti-interference nanometer touch-control film of low-loss |
| CN115810701A (en) * | 2022-12-15 | 2023-03-17 | 安徽熙泰智能科技有限公司 | Silicon-based micro-display product module packaging process |
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Application publication date: 20111005 |