CN101359267A - Capacitance touch screen and making method thereof - Google Patents
Capacitance touch screen and making method thereof Download PDFInfo
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- CN101359267A CN101359267A CNA2007100754526A CN200710075452A CN101359267A CN 101359267 A CN101359267 A CN 101359267A CN A2007100754526 A CNA2007100754526 A CN A2007100754526A CN 200710075452 A CN200710075452 A CN 200710075452A CN 101359267 A CN101359267 A CN 101359267A
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- glass substrate
- touch screen
- capacitive touch
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Abstract
The invention discloses a capacitive touch screen and a manufacturing method; the capacitive touch screen comprises an upper glass substrate, a lower glass substrate and a sealant; the upper glass substrate and the lower glass substrate are bonded through the sealant; and transparent colorless gel is filled between the upper glass substrate and the lower glass substrate. The manufacturing method of the capacitive touch screen comprises the following steps: the upper glass substrate and the lower glass substrate are bonded together through the sealant to form a touch screen box; the glue is poured into the touch screen box; and the glue is solidified as the transparent colorless gel. The manufacturing method is simple in process. As no air layer exists, the capacitive touch screen can effectively prevent the scattering of the air layer to increase the light transmittance, the contrast and the color saturation. The capacitive touch screen can well improve the display effect.
Description
Technical field
The present invention relates to a kind of capacitive touch screen, the invention still further relates to a kind of method for making of capacitive touch screen.
Background technology
Touch-screen is a kind of simple, convenient, natural human-computer interaction device, and it has been widely used in various places.Touch-screen is of a great variety, mainly is divided into resistance-type, condenser type, infrared type and surface acoustic wave type according to principle.Capacitive touch screen is to utilize the electrode on the glass substrate to combine the coordinate that the induced current that capacitance variations produced that is produced detects its position that is touched with static between the human body.Principle of induction acts on four corners of screen induction zone and forms a stationary electric field with voltage, when finger bumps screen, can make electric field cause electric current, measures by controller, according to the difference of four corner ratios of electric current, can calculate contact position.
The method for making of existing capacitive touch screen generally is: etch the electrode pattern that needs on top glass substrate and lower glass substrate respectively; Silk-screen frame adhesive and transfer printing point on top glass substrate and lower glass substrate; Spraying wadding (spacer) back hot pressing fits top glass substrate and lower glass substrate.The capacitive touch screen of being made by above-mentioned method for making is because the existence of wadding, can form an air layer, this air layer is between top glass substrate and lower glass substrate, the existence of air layer can cause scattering to a certain degree, thereby cause transmitance, contrast and the color saturation of capacitive touch screen to descend, influence the display effect of capacitive touch screen.
Summary of the invention
First technical matters that the present invention will solve is exactly in order to overcome above deficiency, to have proposed the good capacitive touch screen of a kind of display effect.
Another technical matters that the present invention will solve is exactly in order to overcome above deficiency, to have proposed a kind of method for making of capacitive touch screen, and the capacitive touch screen display effect that makes by this method is good.
First technical matters of the present invention is solved by following technical scheme:
A kind of capacitive touch screen comprises top glass substrate, lower glass substrate and frame adhesive, and described top glass substrate and lower glass substrate are binded by frame adhesive, is filled with the water white transparency colloid between described top glass substrate and the lower glass substrate.
Preferably, described water white transparency colloid is formed through photocuring less than 2% photocuring glue less than 100cps, cure shrinkage by viscosity.
Described water white transparency colloid is solidified under field conditions (factors) less than 2% common glue less than 300cps, cure shrinkage by viscosity and forms.
The transmitance of described water white transparency colloid is greater than 90%, and the refractive index and the glass substrate of described water white transparency colloid be close, be between the 1.5-1.9.
Also comprise the transfer printing point, described top glass substrate and lower glass substrate apparent surface are respectively equipped with electrode, and described transfer printing point will be positioned at the electrode conduction of its upper and lower when capacitive touch screen is touched.
Another technical matters of the present invention is solved by following technical scheme: a kind of method for making of capacitive touch screen comprises the steps: A, top glass substrate and lower glass substrate is binded formation touch-screen box by frame adhesive; B, glue is poured in the touch-screen box; C, be the water white transparency colloid with glue curing.
Preferably, described glue is viscosity less than 100cps, cure shrinkage less than 2% photocuring glue, and described step C carries out under curing light source.
Described glue be viscosity less than 300cps, shrinkage factor is less than 2% common glue, described step C carries out under field conditions (factors).
Transmitance after the described glue curing is greater than 90%, described glue, and refractive index and the glass substrate after the described glue curing be close, be between the 1.5-1.9.
Described steps A specifically comprises the steps: A1) on top glass substrate and lower glass substrate, etch electrode pattern; A2) silk-screen frame adhesive and transfer printing point on top glass substrate and lower glass substrate; A3) to upper and lower glass substrate hot pressing it is binded to form the touch-screen box; The method that described step B adopts vacuum to irritate liquid pours into glue in the touch-screen box.
The beneficial effect that the present invention is compared with the prior art is:
Capacitive touch screen of the present invention substitutes existing wadding and air layer by one deck water white transparency colloid, can avoid the scattering of air layer effectively, increases light transmission rate, increases contrast, increases color saturation; Capacitive touch screen of the present invention also can be avoided owing to interfere the Newton ring phenomenon of being brought owing to there has not been air layer; This water white transparency colloid can also be alleviated wadding in the existing capacitive touch screen, air layer, glass-based flaggy and differs big and display distortion problem that bring to the transmitance of different wavelengths of light in addition; Capacitive touch screen of the present invention can improve display effect well.Described water white transparency colloid has certain buffer action to top glass substrate and lower glass substrate stressed, can increase the impact strength of glass substrate (particularly top glass substrate).The water white transparency colloid can also play the effect that prevents the quick-fried film of top glass substrate in addition, that is prevents that glass fragment occurring after the top glass substrate fragmentation splashes.
The water white transparency colloid of capacitive touch screen of the present invention is formed through photocuring by photocuring glue, and technology is simple, has very strong practicality.
The method for making step of capacitive touch screen of the present invention is simple, and can avoid the scattering of air layer effectively by the made capacitive touch screen of this method for making, increase light transmission rate, increase contrast, increase color saturation and the Newton ring phenomenon that interference brought can be improved display effect well.
Description of drawings
Fig. 1 is the cross-sectional schematic of the capacitive touch screen of the specific embodiment of the invention;
Fig. 2 is the schematic top plan view of the capacitive touch screen of the specific embodiment of the invention.
Embodiment
Also in conjunction with the accompanying drawings the present invention is described in further details below by concrete embodiment.
As shown in Figure 1, a kind of capacitive touch screen, comprise top glass substrate 1, lower glass substrate 2, frame adhesive 3 and water white transparency colloid 4, described top glass substrate 1 and lower glass substrate 2 are binded by frame adhesive 3, and described water white transparency colloid 4 is filled between top glass substrate 1 and the lower glass substrate 2.Described top glass substrate 1 and lower glass substrate 2 all are tin indium oxide (Indium Tin Oxides is called for short ITO) glass.This water white transparency colloid 4 has replaced wadding and the air layer in the existing capacitive touch screen, and this can be avoided the scattering of air layer effectively, increases light transmission rate, increases contrast, increases color saturation; Capacitive touch screen of the present invention also can be avoided owing to interfere the Newton ring phenomenon of being brought owing to there has not been air layer; This water white transparency colloid 4 can also be alleviated wadding in the existing capacitive touch screen, air layer, glass-based flaggy and differs big and display distortion problem that bring to the transmitance of different wavelengths of light in addition; Capacitive touch screen of the present invention can improve display effect to a great extent.4 pairs of top glass substrate 1 of described water white transparency colloid and lower glass substrate 2 stressed has certain buffer action, can increase the impact strength of glass substrate (particularly top glass substrate 1), water white transparency colloid 4 can also play the effect that prevents top glass substrate 1 quick-fried film in addition, that is prevents that glass fragment occurring after top glass substrate 1 fragmentation splashes.
The apparent surface of described top glass substrate 1 and lower glass substrate 2 etching respectively has electrode, and described capacitive touch screen also comprises transfer printing point 5, and described transfer printing point 5 will be positioned at the electrode conduction of its upper and lower when capacitive touch screen is touched.
Described water white transparency colloid 4 can be formed through photocuring less than 2% photocuring glue less than 100 centipoises (cps), cure shrinkage by viscosity.Selectable photocuring glue comprises that the model of triple bond company is that 3026L, 3045,3026T, 3022 optic-solidified adhesive and the chemical model of pulling together are 8963 optic-solidified adhesive.Obviously, water white transparency colloid 4 also can adopt common glue (non-photocuring glue) to solidify under field conditions (factors) and form, and for example: the model of triple bond company is the common glue of 1555C.The common glue of this kind is milky, and viscosity is less than 300cps, and shrinkage factor also can form the water white transparency colloid less than 2% after the curing.Because photocuring glue only could solidify under the irradiation of curing light source (as ultraviolet light and blue light), so that it not need to require to working environment is very strict, easy to operate, the present invention preferably adopts photocuring glue.
The transmitance of described water white transparency colloid 4 greater than 90%, refractive index is close with lower glass substrate 2 with top glass substrate 1, be between the 1.5-1.9, thereby further guarantee the display effect of touch-screen.The thickness of described water white transparency colloid 4 can design according to user's needs, and as a kind of embodiment, the thickness of described transparent colloid can be 0.01 millimeter.
As shown in Figure 1, 2, the method for making of above-mentioned capacitive touch screen in turn includes the following steps:
The first step: top glass substrate 1 and lower glass substrate 2 are binded formation touch-screen box by frame adhesive.Specifically comprise: on top glass substrate 1 and lower glass substrate 2, etch electrode pattern; Silk-screen frame adhesive 3 and transfer printing point 5 on top glass substrate 1 and lower glass substrate 2; To upper and lower glass substrate hot pressing it is binded to form touch-screen box (cell).When silk-screen frame adhesive 3, can vacate certain position, reserve a liquid feeding mouth 6 thereby be implemented in touch-screen box (cell) periphery.Above-mentioned frame adhesive 3 and transfer printing point 5 be silk-screen together, also can distinguish silk-screen; 5 present positions are put in frame adhesive 3 and transfer printing should be in that (as LCD, visible area LCD) (Visual Area) in addition with the matching used display of capacitive touch screen.
Second step: the method that adopts vacuum to irritate liquid (utilizing capillarity) pours into glue in the touch-screen box by liquid feeding mouth 6.Described glue is the photocuring glue of viscosity less than 100cps.This step because photocuring glue is exposed under the daylight lamp and also can slowly solidifies, and glue poured in the touch-screen box needs the long period, so should be carried out in the darkroom.Selectable photocuring glue comprises that the model of triple bond company is that 3026L, 3045,3026T, 3022 optic-solidified adhesive and the chemical model of pulling together are 8963 optic-solidified adhesive.Obviously, described glue also can be common glue, solidifies under field conditions (factors) this moment to get final product.It is the glue of 1555C that alternative common glue has the model of triple bond company.This glue is milky, and viscosity is less than 300cps, and shrinkage factor also can form the water white transparency colloid less than 2% after the curing.The present invention preferably adopts photocuring glue.Treat glue be full of in the touch-screen box fully and also the touch-screen box in when not having bubble, just carried out for the 3rd step.
The 3rd step: with glue curing is the water white transparency colloid.Need use curing light source when being elected to the light solidified glue, described curing light source can be the light that main value is certain wave band, and for example main value is ultraviolet (Ultraviolet the is called for short UV) light of 365 nanometers.When selecting common glue for use, only need to solidify under field conditions (factors) to get final product.The cure shrinkage of described glue is less than 2%, thereby the water white transparency colloid that forms after the assurance glue curing can be evenly distributed in the touch-screen box, guarantees display effect.Be water white after the described glue curing, and the transmitance height (greater than 90%) of the glue after solidifying, thereby guarantee the transparency of touch-screen, the refractive index and the glass substrate of the glue after the curing are close, be between the 1.5-1.9, make to solidify water white transparency colloid that the back forms seem with glass substrate be one, this can further guarantee the display effect of touch-screen.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. a capacitive touch screen comprises top glass substrate, lower glass substrate and frame adhesive, and described top glass substrate and lower glass substrate are binded by frame adhesive, it is characterized in that: be filled with the water white transparency colloid between described top glass substrate and the lower glass substrate.
2. capacitive touch screen according to claim 1 is characterized in that: described water white transparency colloid is formed through photocuring less than 2% photocuring glue less than 100cps, cure shrinkage by viscosity.
3. capacitive touch screen according to claim 1 is characterized in that: described water white transparency colloid is solidified under field conditions (factors) less than 2% common glue less than 300cps, cure shrinkage by viscosity and forms.
4. according to the arbitrary described capacitive touch screen of claim 1-3, it is characterized in that: the transmitance of described water white transparency colloid is greater than 90%, and the refractive index and the glass substrate of described water white transparency colloid be close, be between the 1.5-1.9.
5. according to the arbitrary described capacitive touch screen of claim 1-3, it is characterized in that: also comprise the transfer printing point, described top glass substrate and lower glass substrate apparent surface are respectively equipped with electrode, and described transfer printing point will be positioned at the electrode conduction of its upper and lower when capacitive touch screen is touched.
6. the method for making of a capacitive touch screen is characterized in that: comprise the steps:
A. top glass substrate and lower glass substrate are binded formation touch-screen box by frame adhesive;
B. glue is poured in the touch-screen box;
C. be the water white transparency colloid with glue curing.
7. the method for making of capacitive touch screen according to claim 6 is characterized in that: described glue is viscosity less than 100cps, cure shrinkage less than 2% photocuring glue, and described step C carries out under curing light source.
8. the method for making of capacitive touch screen according to claim 6 is characterized in that: described glue be viscosity less than 300cps, shrinkage factor is less than 2% common glue, described step C carries out under field conditions (factors).
9. according to the method for making of the arbitrary described capacitive touch screen of claim 5-8, it is characterized in that: the transmitance after the described glue curing is greater than 90%, and refractive index and the glass substrate after the described glue curing be close, be between the 1.5-1.9.
10. according to the method for making of the arbitrary described capacitive touch screen of claim 5-8, it is characterized in that: described steps A specifically comprises the steps: A1) on top glass substrate and lower glass substrate, etch electrode pattern; A2) silk-screen frame adhesive and transfer printing point on top glass substrate and lower glass substrate; A3) to upper and lower glass substrate hot pressing it is binded to form the touch-screen box; The method that described step B adopts vacuum to irritate liquid pours into glue in the touch-screen box.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007100754526A CN101359267A (en) | 2007-07-30 | 2007-07-30 | Capacitance touch screen and making method thereof |
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| CNA2007100754526A CN101359267A (en) | 2007-07-30 | 2007-07-30 | Capacitance touch screen and making method thereof |
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| CN101359267A true CN101359267A (en) | 2009-02-04 |
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Cited By (19)
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| CN101950226A (en) * | 2010-08-27 | 2011-01-19 | 天马微电子股份有限公司 | Capacitive touch screen and manufacturing process thereof |
| CN101973155A (en) * | 2010-08-24 | 2011-02-16 | 深圳市中显微电子有限公司 | Adhering method of capacitance-type touch screen and base plate and adhering method of capacitance-type touch screen and display module |
| CN101587408B (en) * | 2009-06-29 | 2011-04-13 | 深圳莱宝高科技股份有限公司 | Capacitance touch screen and method for preparing the same |
| CN102141865A (en) * | 2010-02-02 | 2011-08-03 | 展触光电科技股份有限公司 | Single-layer projected capacitive touch panel and manufacturing method thereof |
| CN102243552A (en) * | 2010-05-14 | 2011-11-16 | 展触光电科技股份有限公司 | Capacitive touch panel |
| CN102402317A (en) * | 2010-09-08 | 2012-04-04 | 神讯电脑(昆山)有限公司 | Touch display device |
| CN103057244A (en) * | 2011-10-24 | 2013-04-24 | 比亚迪股份有限公司 | Dispensing method for touch panel and touch panel |
| CN103064552A (en) * | 2011-10-18 | 2013-04-24 | 宏达国际电子股份有限公司 | Touch panel display and assembly method thereof, and touch sensing module |
| CN103226420A (en) * | 2010-05-14 | 2013-07-31 | 展触光电科技股份有限公司 | Method for manufacturing capacitance touch panel |
| CN103226421A (en) * | 2010-05-14 | 2013-07-31 | 展触光电科技股份有限公司 | Capacitance touch panel |
| CN104246667A (en) * | 2012-03-30 | 2014-12-24 | 应用材料公司 | Transparent body for use in a touch panel and method and system for manufacturing transparent body |
| CN104597637A (en) * | 2015-01-16 | 2015-05-06 | 中航华东光电有限公司 | Liquid crystal display screen and preparation method thereof |
| CN104679339A (en) * | 2015-01-19 | 2015-06-03 | 欧浦登（顺昌）光学有限公司 | Integrated fully-sealed liquid crystal screen and manufacturing process for same |
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2007
- 2007-07-30 CN CNA2007100754526A patent/CN101359267A/en active Pending
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| CN102141865B (en) * | 2010-02-02 | 2012-11-28 | 展触光电科技股份有限公司 | Single-layer projected capacitive touch panel and manufacturing method thereof |
| CN102968227B (en) * | 2010-02-02 | 2015-08-19 | 宸鸿光电科技股份有限公司 | The manufacture method of single-layer projected capacitive touch panel |
| CN102141865A (en) * | 2010-02-02 | 2011-08-03 | 展触光电科技股份有限公司 | Single-layer projected capacitive touch panel and manufacturing method thereof |
| CN102968227A (en) * | 2010-02-02 | 2013-03-13 | 展触光电科技股份有限公司 | Manufacturing method of single-layer projection capacitive touch panel |
| CN102243552B (en) * | 2010-05-14 | 2013-03-13 | 展触光电科技股份有限公司 | Capacitive touch panel |
| CN103226420A (en) * | 2010-05-14 | 2013-07-31 | 展触光电科技股份有限公司 | Method for manufacturing capacitance touch panel |
| CN102243552A (en) * | 2010-05-14 | 2011-11-16 | 展触光电科技股份有限公司 | Capacitive touch panel |
| CN103226420B (en) * | 2010-05-14 | 2016-05-04 | 宸鸿光电科技股份有限公司 | Capacitance type touch-control panel preparation method |
| CN103226421B (en) * | 2010-05-14 | 2016-08-03 | 宸鸿光电科技股份有限公司 | Capacitance type touch-control panel |
| CN103226421A (en) * | 2010-05-14 | 2013-07-31 | 展触光电科技股份有限公司 | Capacitance touch panel |
| CN101973155B (en) * | 2010-08-24 | 2013-04-10 | 深圳市中显微电子有限公司 | Adhering method of capacitance-type touch screen and base plate and adhering method of capacitance-type touch screen and display module |
| CN101973155A (en) * | 2010-08-24 | 2011-02-16 | 深圳市中显微电子有限公司 | Adhering method of capacitance-type touch screen and base plate and adhering method of capacitance-type touch screen and display module |
| CN101950226A (en) * | 2010-08-27 | 2011-01-19 | 天马微电子股份有限公司 | Capacitive touch screen and manufacturing process thereof |
| CN102402317B (en) * | 2010-09-08 | 2015-03-25 | 神讯电脑(昆山)有限公司 | Touch display device |
| CN102402317A (en) * | 2010-09-08 | 2012-04-04 | 神讯电脑(昆山)有限公司 | Touch display device |
| CN103064552A (en) * | 2011-10-18 | 2013-04-24 | 宏达国际电子股份有限公司 | Touch panel display and assembly method thereof, and touch sensing module |
| CN103064552B (en) * | 2011-10-18 | 2016-08-10 | 宏达国际电子股份有限公司 | Touch panel display and assemble method thereof and touch-control sensing module |
| CN103057244A (en) * | 2011-10-24 | 2013-04-24 | 比亚迪股份有限公司 | Dispensing method for touch panel and touch panel |
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| CN104246667A (en) * | 2012-03-30 | 2014-12-24 | 应用材料公司 | Transparent body for use in a touch panel and method and system for manufacturing transparent body |
| CN104597637A (en) * | 2015-01-16 | 2015-05-06 | 中航华东光电有限公司 | Liquid crystal display screen and preparation method thereof |
| CN104597637B (en) * | 2015-01-16 | 2017-12-15 | 中航华东光电有限公司 | The preparation method of LCDs |
| CN104679339A (en) * | 2015-01-19 | 2015-06-03 | 欧浦登（顺昌）光学有限公司 | Integrated fully-sealed liquid crystal screen and manufacturing process for same |
| US9995956B2 (en) | 2015-03-20 | 2018-06-12 | Opton (Shunchang) Optics Co., Ltd | Integrated fully-sealed liquid cryatal screen and manufacturing process for same |
| CN110286436A (en) * | 2015-07-28 | 2019-09-27 | 阿尔卑斯阿尔派株式会社 | Laminate structure, the manufacturing method of laminate structure and image display device |
| CN105277298A (en) * | 2015-11-23 | 2016-01-27 | 汕头超声显示器技术有限公司 | Method for manufacturing planar pressure transducer combination |
| CN105277298B (en) * | 2015-11-23 | 2018-11-06 | 汕头超声显示器技术有限公司 | A kind of manufacturing method of planar pressure sensor combination |
| CN110442258A (en) * | 2019-07-15 | 2019-11-12 | 惠州市华星光电技术有限公司 | A kind of touch control display apparatus and preparation method thereof |
| CN110442258B (en) * | 2019-07-15 | 2021-01-01 | 惠州市华星光电技术有限公司 | Touch display device and preparation method thereof |
| CN110701163A (en) * | 2019-10-09 | 2020-01-17 | 业成科技（成都）有限公司 | Electronic device and bonding method thereof |
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