CN204251550U - A kind of optics double sticky tape - Google Patents
A kind of optics double sticky tape Download PDFInfo
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- CN204251550U CN204251550U CN201420750484.7U CN201420750484U CN204251550U CN 204251550 U CN204251550 U CN 204251550U CN 201420750484 U CN201420750484 U CN 201420750484U CN 204251550 U CN204251550 U CN 204251550U
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- optical cement
- sticky tape
- double sticky
- release film
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Abstract
The utility model relates to a kind of capacitance touch screen optics double sticky tape, comprise the first release film layer, the first optical cement layer, substrate layer, the second optical cement layer and the second release film layer successively, described substrate layer comprises transparent substrate, and the specific refractory power of described substrate layer is close to Optical transparent adhesive; The thickness of described substrate layer is 50 μm ~ 100 μm; The upper surface of described transparent substrate and/or lower surface are also provided with the hardening coat that thickness is 3 μm ~ 5 μm; Described first optical cement layer and the second optical cement layer are the two-section type ultraviolet curing type OCA glue of thickness 30 μm ~ 60 μm; The pencil hardness >2H of transparent substrate layer.This utility model effectively can be avoided bubble to produce in process of production, reduces production process, improve product yield, and can meet capacitance touch screen slimming requirement better, plays explosion-proof.
Description
Technical field
The utility model relates to a kind of optical adhesive tape, particularly relates to a kind of capacitance touch screen optics double sticky tape.
Background technology
Capacitive touch screen is one piece of four layers of compound glass screen, the internal surface of glass screen and interlayer respectively scribble one deck ITO, and outermost layer is skim silicon soil glass coating, and interlayer ITO coating is as working face, four electrodes are drawn at four angles, and internal layer ITO is that screen layer is to ensure good Working environment.From capacitive touch screen structure composition, its glass substrate occupies very large proportion.During practical application, capacitance touch screen often all needs to embed in corresponding electronic product.In existing capacitance touch screen, ink layer is printed on glass substrate layer, cause the thickness of the ink layer being positioned at edge thicker, and the OCA optical cement layer that the middle section being positioned at ink layer needs should bond with lower floor the middle section also needing extending oil layer of ink, and OCA optical cement layer is expensive, thus cause OCA optical cement layer thickness thicker, and easily produce bubble, therefore cost adds greatly.In addition, glass substrate layer carries out printing and adhesion technique simultaneously, is unfavorable for the raising of production efficiency and product yield.It is more difficult that the capacitive touch screen of prior art will reach bubble-free laminating in making processes, therefore needs to adopt the Optical transparent adhesive of thicker could obtain acceptable good article rate.Optical transparent adhesive of the prior art mainly exists with the form of pure glued membrane, and its starting material manufacture difficulty, and there is upper thickness limit and the low problem of good article rate; The die-cutting performance of Optical transparent adhesive is bad, and excessive glue and bubble easily appear in product frame, and in the course of processing, not easily waste discharge, good article rate is lower, thus causes the cost of monolithic optical transparent adhesive tape higher.
China utility model prospectus CN 203065389 U discloses a kind of optical clear adhesive tape for capacitance touch screen, the transparent substrate two sides of this adhesive tape is respectively equipped with OCA optical cement layer, transparent substrate and OCA optical cement layer composition transparent optical adhesive tape, the one side of transparent optical adhesive tape is provided with the heavy film of PET, another side is provided with the light film of PET, electricity and the mechanical property of capacitance touch screen can be improved, easy to implement, with low cost.But this adhesive tape adopts common OCA optical cement easily to produce bubble in laminating process, affects product quality, base materials employed hardness is lower simultaneously, cannot ensure the safety of user when capacitance touch screen glass coating is subjected to foreign impacts.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of optics double sticky tape, bubble effectively can be avoided in process of production to produce, reduce production process, improve product yield, and capacitance touch screen slimming requirement can be met better, play explosion-proof.
For solving the problems of the technologies described above, optics double sticky tape of the present utility model comprises the first release film layer, the first optical cement layer, substrate layer, the second optical cement layer and the second release film layer successively, described substrate layer comprises transparent substrate, and the specific refractory power of described substrate layer is close to Optical transparent adhesive; The thickness of described substrate layer is 50 μm ~ 100 μm; Upper surface and/or the lower surface of described transparent substrate are also provided with hardening coat, and the thickness of described sclerosis layer is 3 μm ~ 5 μm; Described first optical cement layer and the second optical cement layer are two-section type ultraviolet curing type OCA glue.
Preferably, described transparent substrate is PET blooming.
Preferably, described hardening coat is UV-cured resin layer; Further, described hardening coat can be polyurethane acrylate resin layer, also can be the composition layer of polyurethane acrylate resin and epoxy resin.
Preferably, the pencil hardness >2 H of described substrate layer.
Preferably, the thickness of described first optical cement layer and the second optical cement layer is 30 μm ~ 60 μm; Further, the thickness of described first optical cement layer and the second optical cement layer is 30 μm ~ 40 μm.
Preferably, described first release film is preferably attached most importance to release film, and described second release film is preferably light release film.
Adopt the optics double sticky tape of technique scheme can reach following technique effect.
(1) adopt two-section type ultraviolet light polymerization OCA glue, make tackiness agent obtain certain clinging power at the laminating initial stage by thermofixation, glue-line is softer, drop fillibility is good, avoid the generation of bubble like this when fitting cover-plate glass, initial stage clinging power of simultaneously fitting is less, and doing over again property is higher; By UV-irradiation after pasting, the light trigger in tackiness agent is caused gluing, obtain powerful adhesion completely, utilize the section difference tracing ability of this excellence, workable, effectively can avoid the generation of laminating bubble, improve the yield of product, reduce production cost.Meanwhile, adopt two-section type ultraviolet light polymerization OCA glue, the requirement of capacitance touch screen slimming can be met better.
(2) the optical grade film material through stiffened process has good explosion-proof, can play explosion-proof when capacitance touch screen glass coating is subject to foreign impacts, can effectively prevent fragment from splashing, protection user safety.
(3) the full light transmittance adding dura mater can reach more than 91%, has higher full light light transmission rate compared to common PET, and the current sound of signal when can reduce call to a certain extent.
(4) optics double sticky tape of the present utility model can be avoided first pasting the mode of operation that rupture disk applies one deck OCA again during touch-screen industry panel attachment, not only reduces a procedure, product yield is improved.
Accompanying drawing explanation
Fig. 1 is the sectional view of the utility model optics double sticky tape embodiment 1.
Fig. 2 is the sectional view of the utility model optics double sticky tape embodiment 2.
In above-mentioned accompanying drawing, 1 is the first release film layer, and 2 is the first optical cement layer, and 3 is substrate layer, and 31 is transparent substrate, and 32 is hardened layer, and 4 is the second optical cement layer, and 5 is the second release film layer.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Embodiment 1
As shown in Figure 1, a kind of optics double sticky tape comprises the first release film layer 1, first optical cement layer 2, substrate layer 3, second optical cement layer 4 and the second release film layer 5 successively, described substrate layer 3 comprises transparent substrate 31, and the specific refractory power of substrate layer 3 is close to Optical transparent adhesive; The thickness of described substrate layer is 50 μm ~ 100 μm; The upper surface of described transparent substrate is provided with the sclerosis layer 32 that thickness is 3 μm ~ 5 μm, this hardening coat 32 is UV-cured resin, particularly, hardening coat 32 is the composition layer of polyurethane acrylate resin layer or polyurethane acrylate resin and epoxy resin, the pencil hardness >2 H of described substrate layer 3; The thickness of described first optical cement layer 2 and the second optical cement layer 4 is the two-section type ultraviolet curing type OCA glue of 30 μm ~ 60 μm, and further, the thickness of described first optical cement layer 2 and the second optical cement layer 4 is 30 μm ~ 40 μm; Described first release film layer 1 is attached most importance to release film, and described second release film layer 5 is light release film.
Embodiment 2
As shown in Figure 2, a kind of optics double sticky tape, the difference compared with embodiment 1 is that the upper surface of transparent substrate 31 and lower surface are respectively equipped with the stiffening layer 32 that thickness is 3 μm ~ 5 μm, further enhancing the explosion-proof performance of this optics double sticky tape.
By reference to the accompanying drawings detailed description is done to the preferred embodiment of the utility model above, but the utility model is not limited to above-mentioned embodiment, in the ken that those skilled in the art possess, can also make a variety of changes without departing from the concept of the premise utility.
Claims (8)
1. an optics double sticky tape, comprise the first release film layer, the first optical cement layer, substrate layer, the second optical cement layer and the second release film successively, described substrate layer comprises transparent substrate, the specific refractory power of described substrate layer is close to Optical transparent adhesive, it is characterized in that, the thickness of described substrate layer is 50 μm ~ 100 μm; Upper surface and/or the lower surface of described transparent substrate are also provided with hardening coat, and the thickness of described hardening coat is 3 μm ~ 5 μm; Described first optical cement layer and the second optical cement layer are two-section type ultraviolet curing type OCA glue.
2. optics double sticky tape according to claim 1, is characterized in that, described transparent substrate is PET blooming.
3. optics double sticky tape according to claim 1, is characterized in that, described hardening coat is UV-cured resin layer.
4. optics double sticky tape according to claim 3, is characterized in that, described hardening coat is the composition layer of polyurethane acrylate resin layer or polyurethane acrylate resin and epoxy resin.
5. optics double sticky tape according to claim 1, is characterized in that, the pencil hardness >2 H of described substrate layer.
6. optics double sticky tape according to claim 1, is characterized in that, the thickness of described first optical cement layer and the second optical cement layer is 30 μm ~ 60 μm.
7. optics double sticky tape according to claim 6, is characterized in that, the thickness of described first optical cement layer and the second optical cement layer is 30 μm ~ 40 μm.
8. optics double sticky tape according to claim 1, is characterized in that, described first release film layer is attached most importance to release film, and described second release film layer is light release film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420750484.7U CN204251550U (en) | 2014-12-04 | 2014-12-04 | A kind of optics double sticky tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420750484.7U CN204251550U (en) | 2014-12-04 | 2014-12-04 | A kind of optics double sticky tape |
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| Publication Number | Publication Date |
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| CN204251550U true CN204251550U (en) | 2015-04-08 |
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| CN201420750484.7U Active CN204251550U (en) | 2014-12-04 | 2014-12-04 | A kind of optics double sticky tape |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105017987A (en) * | 2015-07-28 | 2015-11-04 | 太湖金张科技股份有限公司 | Optical double-faced adhesive tape |
| CN106566432A (en) * | 2016-11-07 | 2017-04-19 | 东莞市纳利光学材料有限公司 | High-strength OCA tape and manufacturing method thereof |
| CN107011815A (en) * | 2017-05-09 | 2017-08-04 | 东莞市纳利光学材料有限公司 | A kind of OCA optical cements and preparation method thereof |
| CN107187128A (en) * | 2017-04-29 | 2017-09-22 | 广州易航电子有限公司 | A kind of curved surface diaphragm and its laminating method of coating and forming method |
| CN107512039A (en) * | 2017-09-26 | 2017-12-26 | 东莞市禹辰新材料科技有限公司 | Material and its manufacture method and Mobile phone screen manufacture method are pasted without base material Mobile phone screen |
| CN108690521A (en) * | 2017-09-14 | 2018-10-23 | 浙江欧仁新材料有限公司 | Optical transparent double-faced adhesive tape |
| CN109401714A (en) * | 2018-10-16 | 2019-03-01 | 深圳日高胶带新材料有限公司 | A kind of OCA optics adhesive and its preparation method and application |
| CN110437752A (en) * | 2019-07-08 | 2019-11-12 | 武汉华星光电半导体显示技术有限公司 | The production method of optical cement, display panel and optical cement |
| CN111846874A (en) * | 2020-07-17 | 2020-10-30 | 东莞华誉精密技术有限公司 | Automatic overturning and laminating process for front shell of mobile phone |
| US20210009860A1 (en) * | 2019-07-08 | 2021-01-14 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Optically clear adhesive and method of manufacturing same, and display panel |
-
2014
- 2014-12-04 CN CN201420750484.7U patent/CN204251550U/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105017987A (en) * | 2015-07-28 | 2015-11-04 | 太湖金张科技股份有限公司 | Optical double-faced adhesive tape |
| CN106566432A (en) * | 2016-11-07 | 2017-04-19 | 东莞市纳利光学材料有限公司 | High-strength OCA tape and manufacturing method thereof |
| CN107187128B (en) * | 2017-04-29 | 2019-04-02 | 广州易航电子有限公司 | A kind of curved surface protective film and its laminating method of coating and forming method |
| CN107187128A (en) * | 2017-04-29 | 2017-09-22 | 广州易航电子有限公司 | A kind of curved surface diaphragm and its laminating method of coating and forming method |
| CN107011815B (en) * | 2017-05-09 | 2020-05-05 | 东莞市纳利光学材料有限公司 | OCA optical cement and preparation method thereof |
| CN107011815A (en) * | 2017-05-09 | 2017-08-04 | 东莞市纳利光学材料有限公司 | A kind of OCA optical cements and preparation method thereof |
| CN108690521A (en) * | 2017-09-14 | 2018-10-23 | 浙江欧仁新材料有限公司 | Optical transparent double-faced adhesive tape |
| CN107512039A (en) * | 2017-09-26 | 2017-12-26 | 东莞市禹辰新材料科技有限公司 | Material and its manufacture method and Mobile phone screen manufacture method are pasted without base material Mobile phone screen |
| CN109401714A (en) * | 2018-10-16 | 2019-03-01 | 深圳日高胶带新材料有限公司 | A kind of OCA optics adhesive and its preparation method and application |
| CN110437752A (en) * | 2019-07-08 | 2019-11-12 | 武汉华星光电半导体显示技术有限公司 | The production method of optical cement, display panel and optical cement |
| US20210009860A1 (en) * | 2019-07-08 | 2021-01-14 | Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Optically clear adhesive and method of manufacturing same, and display panel |
| WO2021003876A1 (en) * | 2019-07-08 | 2021-01-14 | 武汉华星光电半导体显示技术有限公司 | Optical adhesive, display panel and fabrication method for optical adhesive |
| CN111846874A (en) * | 2020-07-17 | 2020-10-30 | 东莞华誉精密技术有限公司 | Automatic overturning and laminating process for front shell of mobile phone |
| CN111846874B (en) * | 2020-07-17 | 2022-04-05 | 东莞华誉精密技术有限公司 | Automatic overturning and laminating process for front shell of mobile phone |
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Address after: 213149 No. 20, Changyang Road, West Taihu science and Technology Industrial Park, Wujin District, Changzhou City, Jiangsu Province Patentee after: Xinlun electronic materials (Changzhou) Co.,Ltd. Address before: 213149 No. 20, Changyang Road, West Taihu science and Technology Industrial Park, Wujin District, Changzhou City, Jiangsu Province Patentee before: Xinlun Technology (Changzhou) Co.,Ltd. |