CN105630255B - One chip OGS touch screen and preparation method thereof - Google Patents

One chip OGS touch screen and preparation method thereof Download PDF

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Publication number
CN105630255B
CN105630255B CN201410603695.2A CN201410603695A CN105630255B CN 105630255 B CN105630255 B CN 105630255B CN 201410603695 A CN201410603695 A CN 201410603695A CN 105630255 B CN105630255 B CN 105630255B
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ogs
glass
film
protection film
etching
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CN105630255A (en
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金龙
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Kunshan Rui Yongcheng Precision Equipment Co Ltd
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Kunshan Rui Yongcheng Precision Equipment Co Ltd
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Abstract

The invention discloses a kind of one chip OGS touch screens and preparation method thereof; compared to traditional OGS touch screen manufacture craft; this hair prints etching resisting ink in the upper and lower surface with ITO conductive film and big OGS glass of sensor first; and closely connected anticorrosion protection film, chemical etching, finishing impression and secondary chemical intensification treatment then are being carried out to OGS glass greatly;So that OGS glass protection by anticorrosion protection film always in subsequent chemical etching, finishing impression and secondary chemical strengthening process greatly; OGS monolithic glass surface is not only avoided well to be scratched or pollute in chemical etch process, drastically reduces subsequent required finishing impression time and scavenging period;And also reduce the external physical impact that OGS monolithic glass is subject in finishing impression process, and it avoids OGS monolithic glass there is a phenomenon where by lateral erosion in secondary chemical strengthening process, the original intensity of OGS monolithic glass is maintained well, it is ensured that the quality parameter of OGS monolithic glass is stablized.

Description

One chip OGS touch screen and preparation method thereof
Technical field
The present invention relates to the process technique field of OGS touch screen, a kind of one chip OGS touch screen and its production are specifically provided Method.
Background technique
It is applied with multi-point touch control and is divided into diaphragm type (fi for that main technology of projected capacitive touch panel of demand Lm type) and two kinds of glass type (glass type), apple camp uses glass projecting type capacitor (glass type), rather than Apple camp is then based on film projecting type capacitor (fi lm type PET);The diaphragm type structure of mainstream is to lead to ITO at present It crosses photoetching or is printed in PET film, outer layer is that protection glass is known as GFF (glass-film-film) structure, and the glass of mainstream Touch sensing is made on ito glass by glass formula structure system, and outer city is GG (glass-glass) structure plus a sheet glass.Before Person is limited to high-order ito thin film material and rests in Japanese trader's hand, and the latter's GG binding yield is generally relatively low, all projected capacitive is caused to touch Control the high main cause of module cost.
In order to which touch-control wooden unit cost is effectively reduced, while meeting the trend in the lightening market of middle-end consumer electrical product, Touch-control dealer actively sets about research and development reduction ito thin film or ito glass dosage in recent years, and layout develops OGS, embedded touch or GF Thin film technique.OGS (One Glass Solution) refers to the skill that ITO conductive film and sensor are directly formed on protection glass Art.One block of glass plays a dual role of protecting glass and touch sensor simultaneously.OGS technology will become the following touch-control industry Dominant technology direction.The benefit of OGS technology has at 3 points: 1. saving one layer of glass and reduces primary fitting cost, about compared with two 0.4mm thickness is thinned in chip G/G product, can also save about 5 one-tenth costs;2. alleviating weight;3. increasing light transmittance.Therefore, OGS technology can preferably meet the needs of intelligent terminal ultrathin, and promote display effect, be the following mid- to high-end product must So selection.
But due to the payment structure aggravation between touch-control manufacturer and panel vendor, the evolution of OGS technology falls into changed situation, touch-control Occurs disagreement in the choice of technology with panel vendor, touch-control manufacturer is to keep independent industrial chain link, upstream strengthened glass Coverlens fusion, proposes the solution of TOL (Touch On Lense);And panel vendor then tends to touch-control work Sequence built-inization (in-house) proposes two kinds of solutions of On-cell and In-cell.
Sheet mode is most potential in TOL solution, has Large producers dominating sheet mode, but this Mode locks into the problems such as single-item sliver, edge engraving and edge secondary hardening all the time;Ye You large manufacturer proposes simultaneously Pices mode produces, and although the substrate of higher generation can be used in this mode, volume production has scale effect advantage, but efficiency is remote Less than sheet mode.
Summary of the invention
In order to overcome drawbacks described above, the present invention provides a kind of production method of one chip OGS touch screen, the production methods Simply, safe operation, and stablize through OGS monolithic glass quality parameter made from the production method.
The present invention is to solve technical solution used by its technical problem: a kind of production of one chip OGS touch screen Method includes following steps:
Step 1: providing one and open the OGS glass with ITO conductive film and sensor greatly;
Step 2: printing etching resisting ink: respectively being printed in the upper and lower surface of above-mentioned big OGS glass using high-precision screen printer One layer of etching resisting ink is brushed, and solidifies the etching resisting ink, forms black anti-corrosion ink layer, and the black anti-corrosion ink layer formed Thickness control at 5~20 μm;
Step 3: closely connected anticorrosion protection film: using laminator in the big OGS glass for being printed with slushing oil layer of ink Each closely connected one layer of anticorrosion protection film in upper and lower surface, and ensure the anticorrosion protection film and the big OGS glass upper and lower surface it Between bubble-free;
Step 4:CCD positioning laser cuts film: it is edited first with the light spot image that software generates ccd sensor, Obtain image data corresponding with the big ITO conductive pattern of OGS glass;Then according to the image data and utilize laser Cutting machine cuts the anticorrosion protection film on the big OGS glass, is formed and the picture number on the anticorrosion protection film According to corresponding figure;
Step 5: stripping waste material: pasting on above-mentioned anticorrosion protection film first and fix a protection film, the protection film It is upper that there is the pattern formed with above-mentioned image data according to 1 to 1 ratio;Then the protection film is covered with to this using UV illumination machine OGS glass greatly be irradiated;The protection film is then removed, and will be not required on this greatly OGS glass to be protected against corrosion Protective film strips, and is just formed in the upper and lower surface of the big OGS glass corresponding according to 1 to 1 ratio with above-mentioned image data Anticorrosion protection film pattern;
Step 6: chemical etching: the upper and lower surface through step 5 treated big OGS glass being lost using etching machine It carves, obtains muti-piece OGS monolithic glass;
Step 7: edge grinding finishing impression: being carried out to OGS monolithic glass using glass carving machine;
Step 8: secondary chemical strengthening: by finishing impression, treated that OGS monolithic glass is placed in etching machine carries out prosthetic Etching, to remove the minute crack generated when finishing impression processing, chipping;
Step 9: the OGS monolithic glass after secondary chemical intensification treatment removal anticorrosion protection film layer: being placed in UV It is irradiated in illumination machine, the radiation source energy hole of UV illumination machine is in 550~1000mJ/cm2, irradiation time be 5~ 30s can strip the anticorrosion protection film layer in OGS monolithic glass upper and lower surface;
Step 10: removal slushing oil layer of ink: will treated that OGS monolithic glass is put into film liquid by above-mentioned steps 9 It impregnates, goes the control of film liquid temperature at 30~50 DEG C, the slushing oil layer of ink in OGS monolithic glass upper and lower surface can be removed;So far, One chip OGS touch screen completes.
As a further improvement of the present invention, in step 2, the etching resisting ink is matched by following component and parts by weight System: 5~10 parts of curing agent, 10~60 parts of resin, 10~50 parts of adhesive, 1~10 part of emulsifier, 10~30 parts of filler;
The technique for solidifying the etching resisting ink are as follows: baking temperature is 150 DEG C, baking time 20min.
As a further improvement of the present invention, in step 3, the operating condition of laminator are as follows: the control of hot pressing roller pressure 1~ 4Kg/cm2, overlay film speed control is in 0.5~2m/min;
Separately in step 3, which is the PO film by UV curing process, and the thicknesses of layers of the PO film is 80 ~120 μm, adhesive layer thickness be 30~42 μm, adhesion strength be greater than 1200g/25mm.
As a further improvement of the present invention, the etching solution in step 6 and step 8 is hydrofluoric acid solution.
As a further improvement of the present invention, in step 10, described to go film liquid be the sodium hydroxide that volume ratio is 3~5% Solution;OGS monolithic glass is 2~5min in the soaking time gone in film liquid.
The invention also discloses a kind of one chip OGS touch screen, which uses list of the present invention The production method of chip OGS touch screen is made.
The beneficial effects of the present invention are: the present invention passes through process innovation compared to traditional OGS touch screen manufacture craft: Etching resisting ink, and closely connected guarantor against corrosion are printed in the upper and lower surface with ITO conductive film and big OGS glass of sensor first Then cuticula is carrying out chemical etching, finishing impression and secondary chemical intensification treatment to OGS glass greatly;So that opening OGS glass greatly The protection by anticorrosion protection film always in subsequent chemical etching, finishing impression and secondary chemical strengthening process, not only well It avoids OGS monolithic glass surface to be scratched or pollute in chemical etch process, drastically reduces subsequent required finishing impression Time and scavenging period;And the external physical impact that OGS monolithic glass is subject in finishing impression process is also reduced, and avoid In secondary chemical strengthening process there is a phenomenon where it is original to maintain OGS monolithic glass well by lateral erosion for OGS monolithic glass Intensity, it is ensured that the quality parameter of OGS monolithic glass is stablized.
Specific embodiment
The present invention is described in further details below with reference to specific embodiment, but the present invention is not restricted to these implement Example.
The invention discloses a kind of production methods of one chip OGS touch screen, include following steps:
Step 1: providing one and open the OGS glass with ITO conductive film and sensor greatly, this opens greatly the production side of OGS glass Method can be used conventional technical means and be made, and be not described in detail here;
Step 2: printing etching resisting ink: respectively being printed in the upper and lower surface of above-mentioned big OGS glass using high-precision screen printer One layer of etching resisting ink is brushed, and solidifies the etching resisting ink, forms black anti-corrosion ink layer, and the black anti-corrosion ink layer formed Thickness control at 5~20 μm;
Step 3: closely connected anticorrosion protection film: using laminator in the big OGS glass for being printed with slushing oil layer of ink Each closely connected one layer of anticorrosion protection film in upper and lower surface, and ensure the anticorrosion protection film and the big OGS glass upper and lower surface it Between bubble-free;Before closely connected anticorrosion protection film, it is to be ensured that the upper and lower surface for opening OGS glass greatly keeps clean, must not there is powder Dirt, greasy dirt and steam, in order to avoid influence adhesion effect;
Step 4:CCD positioning laser cuts film: compiling first with the light spot image that CAD software generates ccd sensor Volume, obtain image data corresponding with the big ITO conductive pattern of OGS glass;Then it according to the image data and utilizes Laser cutting machine cuts the anticorrosion protection film on the big OGS glass, is formed and the figure on the anticorrosion protection film As the corresponding figure of data;
Step 5: stripping waste material: pasting on above-mentioned anticorrosion protection film first and fix a protection film, the protection film It is upper that there is the pattern formed with above-mentioned image data according to 1 to 1 ratio;Then the protection film is covered with to this using UV illumination machine OGS glass greatly be irradiated;The protection film is then removed, and will be not required on this greatly OGS glass to be protected against corrosion Protective film strips, and is just formed in the upper and lower surface of the big OGS glass corresponding according to 1 to 1 ratio with above-mentioned image data Anticorrosion protection film pattern;Anticorrosion protection film can be completely combined with OGS glass, perfect and firm.When subsequent secondaryization of progress When learning the chemical medicinal liquid etching strengthened in process, chemical medicinal liquid will not be penetrated under anticorrosion protection film, avoid occurring glass by side The phenomenon that losing (Under Cut);
Step 6: chemical etching: using the dedicated etching machine of horizontal fountain to through step 5 treated big OGS glass Upper and lower surface is etched, and obtains muti-piece OGS monolithic glass;
Step 7: edge grinding finishing impression: being carried out to OGS monolithic glass using glass carving machine;The operative employee of glass carving machine Skill is prior art means, is not described in detail here;
Step 8: secondary chemical strengthening: by finishing impression, treated that OGS monolithic glass is placed in horizontal overflow-type etching machine Prosthetic etching is carried out, to remove the minute crack generated when finishing impression processing, chipping, the bending stress of reinforcing glass, bending are carried The physical strengths such as lotus;
Step 9: the OGS monolithic glass after secondary chemical intensification treatment removal anticorrosion protection film layer: being placed in UV It is irradiated in illumination machine, the radiation source energy hole of UV illumination machine is in 550~1000mJ/cm2, irradiation time be 5~ 30s can easily strip the anticorrosion protection film layer in OGS monolithic glass upper and lower surface;
Step 10: removal slushing oil layer of ink: will treated that OGS monolithic glass is put into film liquid by above-mentioned steps 9 It impregnates, goes the control of film liquid temperature at 30~50 DEG C, the slushing oil layer of ink in OGS monolithic glass upper and lower surface can be removed;So far, One chip OGS touch screen completes.
Preferably, in step 2, the etching resisting ink is prepared by following component and parts by weight: 5~10 parts of curing agent, 10~60 parts of resin, 10~50 parts of adhesive, 1~10 part of emulsifier, 10~30 parts of filler;Wherein, curing agent can be selected from amino At least one of resin, isocyanates;Resin can be selected from synthetic resin or natural resin (such as: acrylic resin, ABS resin, One of polyvinyl resin, organic siliconresin, epoxy resin);Filler can be selected from tetrafluoroethene micro mist, in barium sulfate micro mist It is a kind of;
The technique for solidifying the etching resisting ink are as follows: baking temperature is 150 DEG C, baking time 20min.
Preferably, in step 3, the operating condition of laminator are as follows: hot pressing roller pressure is controlled in 1~4Kg/cm2, overlay film speed Control is in 0.5~2m/min;Separately in step 3, which is PO film by UV curing process, and the film of the PO film Layer is 30~42 μm with a thickness of 80~120 μm, adhesive layer thickness, and adhesion strength is greater than 1200g/25mm.
Preferably, the etching solution in step 6 and step 8 is hydrofluoric acid solution.
Preferably, in step 10, described to go film liquid be the sodium hydroxide solution that volume ratio is 3~5%;OGS monolithic glass In the soaking time gone in film liquid be 2~5min.
The invention also discloses a kind of one chip OGS touch screen, the above-mentioned one chip OGS touching of the one chip OGS touch screen The production method for touching screen is made.
Above-mentioned lifted embodiment is only to illustrate composition and effect of the invention, not thereby of the invention special to arrest limit Sharp range, therefore the change of all equivalent structures and similar modification of the invention is not departed from such as, it is under the jurisdiction of patent of the invention Scope.

Claims (6)

1. a kind of production method of one chip OGS touch screen, it is characterised in that: include following steps:
Step 1: providing one and open the OGS glass with ITO conductive film and sensor greatly;
Step 2: printing etching resisting ink: respectively printing one in the upper and lower surface of above-mentioned big OGS glass using high-precision screen printer Layer etching resisting ink, and solidify the etching resisting ink, form black anti-corrosion ink layer, and the thickness of the black anti-corrosion ink layer formed Degree control is at 5~20 μm;Wherein, the etching resisting ink is prepared by following component and parts by weight: 5~10 parts of curing agent, tree 10~60 parts of rouge, 10~50 parts of adhesive, 1~10 part of emulsifier, 10~30 parts of filler;And the curing agent is selected from amino tree At least one of rouge, isocyanates, the resin be selected from acrylic resin, ABS resin, polyvinyl resin, organic siliconresin, One of epoxy resin, the filler are selected from one of tetrafluoroethene micro mist, barium sulfate micro mist;
Step 3: closely connected anticorrosion protection film: using laminator above and below the big OGS glass for being printed with slushing oil layer of ink Each closely connected one layer of anticorrosion protection film on surface, and ensure nothing between the anticorrosion protection film and the upper and lower surface of the big OGS glass Bubble;Wherein, which is the PO film by UV curing process, and the thicknesses of layers of the PO film is 80~120 μm, glues Layer with a thickness of 30~42 μm, adhesion strength is greater than 1200g/25mm;
Step 4:CCD positioning laser cuts film: editing, obtains first with the light spot image that software generates ccd sensor Image data corresponding with the big ITO conductive pattern of OGS glass;Then it is cut by laser according to the image data and utilization Machine cuts the anticorrosion protection film on the big OGS glass, is formed and the image data phase on the anticorrosion protection film Corresponding figure;
Step 5: stripping waste material: pasting on above-mentioned anticorrosion protection film first and fix a protection film, have on the protection film There is the pattern formed with above-mentioned image data according to 1 to 1 ratio;Then the big of the protection film is covered with to this using UV illumination machine OGS glass is opened to be irradiated;The protection film is then removed, and anticorrosion protection to be protected will be not required on this greatly OGS glass Film strips, and is just formed in the upper and lower surface of the big OGS glass corresponding anti-according to 1 to 1 ratio with above-mentioned image data Erosion protection film pattern;
Step 6: chemical etching: being etched the upper and lower surface through step 5 treated big OGS glass using etching machine, Obtain muti-piece OGS monolithic glass;
Step 7: edge grinding finishing impression: being carried out to OGS monolithic glass using glass carving machine;
Step 8: secondary chemical strengthening: by finishing impression treated OGS monolithic glass is placed in progress prosthetic etching in etching machine, To remove the minute crack generated when finishing impression processing, chipping;
Step 9: the OGS monolithic glass after secondary chemical intensification treatment removal anticorrosion protection film layer: being placed in UV illumination It is irradiated in machine, the radiation source energy hole of UV illumination machine is in 550~1000mJ/cm2, irradiation time is 5~30s, i.e., The anticorrosion protection film layer in OGS monolithic glass upper and lower surface can be stripped;
Step 10: removal slushing oil layer of ink: will by above-mentioned steps 9, treated that OGS monolithic glass is put into film liquid impregnates, It goes the control of film liquid temperature at 30~50 DEG C, the slushing oil layer of ink in OGS monolithic glass upper and lower surface can be removed;So far, monolithic Formula OGS touch screen completes.
2. the production method of one chip OGS touch screen according to claim 1, it is characterised in that: in step 2, solidification should The technique of etching resisting ink are as follows: baking temperature is 150 DEG C, baking time 20min.
3. the production method of one chip OGS touch screen according to claim 1, it is characterised in that: in step 3, laminator Operating condition are as follows: hot pressing roller pressure control in 1~4Kg/cm2, overlay film speed control is in 0.5~2m/min.
4. the production method of one chip OGS touch screen according to claim 1, it is characterised in that: in step 6 and step 8 Etching solution be hydrofluoric acid solution.
5. the production method of one chip OGS touch screen according to claim 1, it is characterised in that: described to go in step 10 Film liquid is the sodium hydroxide solution that volume ratio is 3~5%;OGS monolithic glass is 2~5min in the soaking time gone in film liquid.
6. a kind of one chip OGS touch screen, using the system of one chip OGS touch screen described in any one of claim 1-5 It is made as method.
CN201410603695.2A 2014-10-31 2014-10-31 One chip OGS touch screen and preparation method thereof Active CN105630255B (en)

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CN106598332A (en) * 2016-12-12 2017-04-26 晟光科技股份有限公司 Improved fabrication method of one-chip touch screen
CN107225692A (en) * 2017-06-21 2017-10-03 成都市鸥威光电科技有限责任公司 A kind of mobile lens protect slice processing method
CN109250896A (en) * 2017-07-13 2019-01-22 蓝思科技(长沙)有限公司 A kind of processing method and purposes of glass panel
CN108319403A (en) * 2017-11-22 2018-07-24 汕头超声显示器技术有限公司 A kind of manufacturing method of ultra-thin capacitance touch screen
CN111204145A (en) * 2019-12-27 2020-05-29 黄石瑞视光电技术股份有限公司 Color ink discoloration inhibition method for FPC binding position of touch screen

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CN103130417A (en) * 2011-11-29 2013-06-05 昆山汉白精密设备有限公司 Manufacture technology of glass panel of electronic product
CN103979803A (en) * 2014-03-19 2014-08-13 昆山瑞咏成精密设备有限公司 Manufacturing technology for glass panel of electronic products

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CN103130417A (en) * 2011-11-29 2013-06-05 昆山汉白精密设备有限公司 Manufacture technology of glass panel of electronic product
CN103979803A (en) * 2014-03-19 2014-08-13 昆山瑞咏成精密设备有限公司 Manufacturing technology for glass panel of electronic products

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