CN102402338B - Touch screen panel and method for manufacturing same - Google Patents
Touch screen panel and method for manufacturing same Download PDFInfo
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- CN102402338B CN102402338B CN 201110444647 CN201110444647A CN102402338B CN 102402338 B CN102402338 B CN 102402338B CN 201110444647 CN201110444647 CN 201110444647 CN 201110444647 A CN201110444647 A CN 201110444647A CN 102402338 B CN102402338 B CN 102402338B
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Abstract
The invention discloses a touch screen panel, which comprises a polyethylene glycol terephthalate tablet component and a glass cover plate component, wherein the polyethylene glycol terephthalate tablet component comprises polyethylene glycol terephthalate tablets; lower electrodes are formed on lower surfaces of the polyethylene glycol terephthalate tablets; the glass cover plate component comprises glass cover plates; anti-fingerprint films are coated on upper surfaces of the glass cover plates; printing-ink view windows are printed around the lower surfaces of the glass cover plates; anti-reflection layers are coated on the lower surfaces of the glass cover plates; upper electrodes are formed on the lower surfaces of the anti-reflection layers; and the upper surface of the polyethylene glycol terephthalate tablet component is adhered to the lower surface of the glass cover plate component by using an optical transparent adhesive. The invention also discloses a method for manufacturing the touch screen panel. By the invention, reflection can be reduced, the definition of a display screen is improved, and production cost is low.
Description
Technical field
The present invention relates to a kind of touch panel and manufacture method thereof.
Background technology
General touch panel design is divided into two kinds now, and a kind of is the pressure touch screens, and a kind of is capacitance plate.Resistive touch screen, utilize pressure sensitive to be controlled, and capacitive touch screen, and the induction current by human body carrys out work.
The formation of resistive touch screen is display screen and a resistance film screen fitted tightly with display screen.This resistance film screen is divided into two-layer usually, and one deck is the basic unit consisted of glass or acrylic, and its surface scribbles transparent conductive layer; The polycarbonate through overcure and scratch resistant processing that basic unit is pressing us directly to contact at ordinary times in outside, plastic layer inside has the layer of transparent conductive layer equally, between two transparency conducting layers, separates.When we use finger or other object touch screen, two transparency conducting layers come in contact, and resistance changes, and controller judges the coordinate of contact point and operates accordingly according to the concrete variation of resistance.
Capacitive touch screen and traditional resistive touch screen have very large difference.Resistance touch screen can only judge a touch point when work at every turn, if touch point just can not have been made correct judgement more than two, so resistive touch screen is only applicable to the judgement of some simple motions such as clicking, pull.And the multi-point touch of capacitive touch screen can be decomposed into user's touch multi-point signal and two work of judgement significance signal of gathering, complete the judgement to compound action.
It is that induction current by human body carries out work for capacitive touch screen.The panel of common capacitive touch screen is four layers of compound glass screen, and the inside surface of glass substrate and interlayer respectively scribble one deck conductive layer, and outermost layer is protective cover, and it is skim silicon soil glassivation.When we use finger touch on panel, the electric field of human body allows to be pointed and forms a coupling capacitance with touch screen surface, and for high-frequency current, electric capacity is direct conductor, so finger siphons away a very little electric current from contact point.This electric current divides in the electrode four jiaos from touch-screen and flows out, and the electric current of these four electrodes of flowing through is directly proportional to the distance of finger to four jiaos, and controller, by the accurate Calculation to these four current ratios, draws the position of touch point.
The subject matter of above this design is complex process, and precision is not high, and touch-screen is subject to the panel surface reflections affect larger, and transmitance is not high, has influence on visual effect, and high cost is its another subject matter in addition.
Summary of the invention
The present invention provides a kind of can the minimizing to reflect and the low touch screen panel board fabrication method of production cost for solving the technical matters existed in known technology.
The technical scheme that the present invention takes for the technical matters existed in the solution known technology is: a kind of manufacture method of touch panel comprises the following steps:
One) manufacture of glass cover-plate assembly comprises the following steps:
1) at the lower surface surrounding printing-ink form window of glass cover-plate;
2) on the lower surface of glass cover-plate, adopt the method for vacuum coating to form antireflection layer;
Close on vacuum chamber of film coating machine without the cathode ion source, pumping high vacuum, when the indoor vacuum tightness of vacuum reaches at least 2 * 10
-5during torr, open on the electron gun of coating machine and electron gun without the cathode ion source, open on vacuum chamber without the cathode ion source, pass into argon gas that flow is 15-25sccm and the mixed gas of oxygen to vacuum chamber, passing into flow to electron gun is 8-12sccm oxygen, the TiO2 film that first to deposit a layer thickness on the lower surface of glass cover-plate be 10-15nm, then deposit the SiO2 film that a layer thickness is 60-80nm, finally depositing a layer thickness is the first nesa coating of 70-90nm; TiO2 film and silica membrane form antireflection layer jointly;
3) on the lower surface of antireflection layer, adopt the method for vacuum coating to form the first nesa coating;
4) on the upper surface of glass cover-plate, adopt the method for vacuum coating to form anti-fingerprint film;
5) etching the first nesa coating, form top electrode;
Two) manufacture of polyethylene terephthalate chip module: the lower surface at the polyethylene terephthalate sheet adopts the method for vacuum coating to form the second nesa coating, and etching the second nesa coating, form bottom electrode;
Three) by the lower surface of the upper surface of polyethylene terephthalate chip module and glass cover-plate assembly, adopt the optical clear glue bond, form touch panel.
The coating process of described TiO2 film, described SiO2 film and described the first nesa coating is all to carry out under the condition auxiliary at vacuum chamber deep cooling low temperature machine, and the design temperature of vacuum chamber deep cooling low temperature machine is lower than-120 ℃.
Advantage and good effect that the present invention has are: 1) reflecting surface of traditional capacitance screen is nearly 8, and reflectivity is 5%, and reflecting surface of the present invention only has 4, and is coated with an antireflection layer, and reflectivity is 0.5% left and right, has improved the sharpness of display screen; 2) the bonding structure of cover-plate glass assembly after employing polyethylene terephthalate chip module and chemical tempering, saved the expenses such as coating film on glass etching tempering, can effectively reduce by 20% production cost, greatly improves the efficiency of volume production; And compare and there is explosion-proof performance preferably with the traditional capacitance screen, improved the security of using; 3) adopt the structure at the anti-fingerprint film of outside surface plating of cover-plate glass, can increase this panel touch-surface water oil contact angle to 110 degree, make clean fingerprint convenient; 4) with traditional capacitance screen, compare, one deck glass assembly in the middle of having cancelled, widely attenuate the thickness of panel, more meet the development trend that touches assembly, it is broader that application becomes.
The accompanying drawing explanation
The structural representation that Fig. 1 is touch panel of the present invention.
In figure: 1, anti-fingerprint film, 2, glass cover-plate, 3, antireflection layer, 4, top electrode, 5, printing ink form window, 6, LCDs, 7, the optical clear glue-line, 8, bottom electrode, 9, the polyethylene terephthalate sheet, 10, the optical clear glue-line.
Embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, a kind of touch panel, comprise polyethylene terephthalate chip module and glass cover-plate assembly;
The polyethylene terephthalate chip module comprises polyethylene terephthalate sheet 9, is formed with bottom electrode 8 on the lower surface of polyethylene terephthalate sheet 9;
The glass cover-plate assembly comprises glass cover-plate 2, be coated with anti-fingerprint film 1 on the upper surface of glass cover-plate 2, lower surface surrounding at glass cover-plate 2 is printed with printing ink form window 5, is coated with antireflection layer 3 on the lower surface of glass cover-plate 2, is formed with top electrode 4 on the lower surface of antireflection layer 3;
The lower surface of the upper surface of polyethylene terephthalate chip module and glass cover-plate assembly is bonding by optical clear glue-line 10.
Generally, above-mentioned panel can be bonded on LCDs 6 by optical clear glue-line 7.
Manufacture method of the present invention:
One) manufacture of glass cover-plate assembly
1) glass cover-plate dedusting, dewater
Glass cover-plate 2 lower surfaces that the lower surface surrounding is printed with to printing ink form window 5 are packed on the substrate frame of vacuum chamber of film coating machine regulation upward, and carry out electrostatic precipitation.Next substrate frame is packed in vacuum chamber of film coating machine, vacuum chamber carries out fine pumping, starts the deep cooling low temperature machine be provided in vacuum chamber, makes its design temperature lower than-120 ℃, the moisture above glass cover-plate 2 thoroughly can be removed like this.
2) glass cover plate surfaces cleans, activates
The vacuum tightness indoor when vacuum reaches at least 5 * 10
-5during torr, open on vacuum chamber without the cathode ion source, and the mixed gas of the argon gas passed into to vacuum chamber and oxygen, carry out cleaning and surface active to the surface of glass cover-plate 2, time can be set as 2-5 minute, and the flow that passes into gas can be set as 6-15sccm.
3) coated with antireflection layer and nesa coating on the lower surface of glass cover-plate
Close on vacuum chamber without the cathode ion source, continue pumping high vacuum, when the indoor vacuum tightness of vacuum reaches at least 2 * 10
-5during torr, open on the electron gun of coating machine and electron gun without the cathode ion source, open on vacuum chamber without the cathode ion source, pass into argon gas that flow is 15-25sccm and the mixed gas of oxygen to vacuum chamber, passing into flow to electron gun is 8-12sccm oxygen, the TiO2 film that first to deposit a layer thickness on the lower surface of glass cover-plate 2 be 10-15nm, then deposit the SiO2 film that a layer thickness is 60-80nm, finally depositing a layer thickness is the first nesa coating of 70-90nm.
Above-mentioned TiO2 film and silica membrane form antireflection layer 3 jointly.
The coating process of above-mentioned TiO2 film, silica membrane and the first nesa coating is all to carry out under auxiliary condition at deep cooling low temperature machine with without the cathode ion source.By passing into the rational gas of flow, and the design temperature that makes deep cooling low temperature machine is lower than-120 ℃, successfully solved glass cover-plate 2 surface venting with and oxide on surface on the impact of antireflection layer and nesa coating.
4) the anti-fingerprint film of plating on the upper surface of glass cover-plate
Close the deep cooling low temperature machine on vacuum chamber, after vacuum chamber is filled to atmosphere, open vacuum chamber, upset glass cover-plate 2, make its upper surface upward, be fixed on substrate frame, put into vacuum chamber, after vacuum chamber vacuumizes, start the deep cooling low temperature machine on vacuum chamber, and make its design temperature lower than-120 ℃, remove the moisture of glass cover-plate upper surface, open on vacuum chamber without the cathode ion source, upper surface to glass cover-plate is cleaned, activation, close on vacuum chamber without the cathode ion source, under vacuum chamber deep cooling low temperature machine auxiliary, plating fluoride or organosilicon on the upper surface of glass cover-plate, form anti-fingerprint film 1.
5) form top electrode
The glass cover-plate assembly is taken out to etching the first nesa coating, the top electrode 4 of formation required form from vacuum chamber.So far, the manufacture of glass cover-plate assembly completes.
Two) manufacture of polyethylene terephthalate chip module
On the lower surface of polyethylene terephthalate sheet 9, adopt Vacuum Deposition to form the second nesa coating, etching the second nesa coating, the bottom electrode 8 of formation required form.The Vacuum Deposition method of the second nesa coating is identical with the first nesa coating Vacuum Deposition method.
Three) form panel
By the lower surface of the upper surface of polyethylene terephthalate chip module and glass cover-plate assembly, adopt the optical clear glue bond, form touch panel.During use, adopt the optical clear glue bond to get final product on LCDs 6 above-mentioned panel.
In the present embodiment, the electron gun that coating machine adopts Korea S to produce, glass cover-plate is the 1.0mm soda-lime glass that NSG produces, what the polyethylene terephthalate sheet was used is that 0.125mm250 Ohmage sheet is produced in day east.
Although the above is described the preferred embodiments of the present invention by reference to the accompanying drawings; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away from the scope situation that aim of the present invention and claim protect, can also make a lot of forms, within these all belong to protection scope of the present invention.
Claims (2)
1. the manufacture method of a touch panel, is characterized in that, comprises the following steps:
One) manufacture of glass cover-plate assembly comprises the following steps:
1) at the lower surface surrounding printing-ink form window of glass cover-plate;
2) on the lower surface of glass cover-plate, adopt the method for vacuum coating to form antireflection layer;
Close on vacuum chamber without the cathode ion source, pumping high vacuum, when the indoor vacuum tightness of vacuum reaches at least 2 * 10
-5during torr, on the electron gun of opening and electron gun without the cathode ion source, open on vacuum chamber without the cathode ion source, pass into argon gas that flow is 15-25sccm and the mixed gas of oxygen to vacuum chamber, passing into flow to electron gun is 8-12sccm oxygen, the TiO2 film that first to deposit a layer thickness on the lower surface of glass cover-plate be 10-15nm, then deposit the SiO2 film that a layer thickness is 60-80nm; TiO2 film and silica membrane form antireflection layer jointly;
3) on the lower surface of antireflection layer, adopt the method for vacuum coating to form the first nesa coating;
4) on the upper surface of glass cover-plate, adopt the method for vacuum coating to form anti-fingerprint film;
5) etching the first nesa coating, form top electrode;
Two) manufacture of polyethylene terephthalate chip module: the lower surface at the polyethylene terephthalate sheet adopts the method for vacuum coating to form the second nesa coating, and etching the second nesa coating, form bottom electrode;
Three) by the lower surface of the upper surface of polyethylene terephthalate chip module and glass cover-plate assembly, adopt the optical clear glue bond, form touch panel.
2. the manufacture method of touch panel according to claim 1, it is characterized in that, the coating process of described TiO2 film, described SiO2 film and described the first nesa coating is all to carry out under without cathode ion source and the auxiliary condition of vacuum chamber deep cooling low temperature machine, and the design temperature of vacuum chamber deep cooling low temperature machine is lower than-120 ℃.
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| CN 201110444647 CN102402338B (en) | 2011-12-27 | 2011-12-27 | Touch screen panel and method for manufacturing same |
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| CN 201110444647 CN102402338B (en) | 2011-12-27 | 2011-12-27 | Touch screen panel and method for manufacturing same |
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| CN102402338A CN102402338A (en) | 2012-04-04 |
| CN102402338B true CN102402338B (en) | 2013-12-18 |
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Families Citing this family (16)
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| CN102830846B (en) * | 2012-08-24 | 2016-04-20 | 周忠 | A kind of touch panel based on laminating formation and manufacture method thereof |
| CN103067541A (en) * | 2012-12-29 | 2013-04-24 | 苏州市智诚光学科技有限公司 | Manufacturing process of mobile phone glass cover plate |
| CN103353815B (en) * | 2013-02-04 | 2016-12-28 | 芜湖长信科技股份有限公司 | Capacitance plate OGS shadow eliminating structure and manufacturing process thereof |
| CN103164083A (en) * | 2013-04-09 | 2013-06-19 | 徐州纳帝电子科技有限公司 | Method of continuous manufacturing mobile phone touch screen |
| CN103382091B (en) * | 2013-07-11 | 2015-10-07 | 蓝思科技（长沙）有限公司 | A kind of method realizing the colored wire drawing pattern of contact panel window border on cover-plate glass |
| CN103472893A (en) * | 2013-09-02 | 2013-12-25 | 中环高科（天津）股份有限公司 | Processing technique of laptop glass touchpad |
| CN103412679A (en) * | 2013-09-02 | 2013-11-27 | 中环高科（天津）股份有限公司 | Processing method of laptop glass touch keyboard |
| CN103677425A (en) * | 2013-12-24 | 2014-03-26 | 贵阳嘉瑜光电科技咨询中心 | Sapphire mobile phone touch screen |
| CN104750323B (en) * | 2013-12-27 | 2017-11-28 | 深圳市比亚迪电子部品件有限公司 | Capacitance touch screen and preparation method thereof |
| CN106155439A (en) * | 2015-04-16 | 2016-11-23 | 苏州欧菲光科技有限公司 | Touch screen, touch display module and electronic equipment |
| CN105116965A (en) * | 2015-08-25 | 2015-12-02 | 昆山龙腾光电有限公司 | Display device and assembling method for display device |
| CN105739789B (en) * | 2016-03-14 | 2019-03-01 | 广东劲胜智能集团股份有限公司 | A kind of electronic touch screen and plated film preparation process |
| CN106739280A (en) * | 2016-12-08 | 2017-05-31 | 信利光电股份有限公司 | A kind of mobile terminal and its cover plate |
| CN107793040A (en) * | 2017-11-09 | 2018-03-13 | 四川皇泽光电科技有限公司 | A kind of glass cover-plate and preparation method thereof |
| CN111826622B (en) * | 2020-06-10 | 2022-11-01 | 深圳市锐欧光学股份有限公司 | Film coating method for mobile phone camera cover plate |
| CN112817485B (en) * | 2021-02-19 | 2022-09-23 | 联想(北京)有限公司 | Transparent cover plate and manufacturing method thereof |
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