CN107556938A - A kind of optical clear glued membrane and its manufacture method - Google Patents
A kind of optical clear glued membrane and its manufacture method Download PDFInfo
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- CN107556938A CN107556938A CN201710858163.7A CN201710858163A CN107556938A CN 107556938 A CN107556938 A CN 107556938A CN 201710858163 A CN201710858163 A CN 201710858163A CN 107556938 A CN107556938 A CN 107556938A
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- optical
- glued membrane
- optical clear
- reactive diluent
- membrane according
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Abstract
This application discloses a kind of optical clear glued membrane and its manufacture method.The heat-resisting color inhibition of the high cohesion is without the two-sided optical clear glued membrane of base material by introducing the thiol-cured accelerator of polyfunctionality, increase the degree of cross linking of optical adhesive film and efficiency is fully cured, so that few, improved heat resistance is remained after the cohesive force enhancing of cured glue film and completion of cure.When using the optical clear glued membrane manufactured by the present invention, only need gently to peel off the glued membrane at some angle in rework process, be then wound around on glass bar or the thin rods of other cylinders, easily can peel the whole glued membrane that mounts, and do not remain.
Description
Technical field
The application is related to electronic product packaging field, more particularly, to a kind of high-cleanness for touch-screen encapsulation field,
The high grade of transparency, the double sided optical glued membrane without base material and its manufacture method.
Background technology
Using OCA (Optically Clear Adhesive) be the filling of optical clear glued membrane touch-screen and display panel it
Between air layer, visuality can be improved.Now, the air layer between touch-screen and display panel is filled using OCA, can subtracted
Few dazzle, the loss that display panel sends light is reduced, increase contrast, the especially contrast under strong illumination, lifting is aobvious
Show panel visuality out of doors and display performance, therefore in requirement more and more higher of the touch-screen industry to OCA materials.
OCA can be used as the bonding of transparent optical material, such as ito film, PMMA, PC, PET, glass, Electronic Paper, projection screen group
Dress, display assembling, lens assembling, resistive touch screen G+F+F, F+F, capacitive touch screen, panel, ICON and other phases
Close the bonding of electronic material.The solid adhesive of these transparent no base materials can ensure that accurate color and sufficiently show bright
Degree, and durable, high intensity adhesive effect is provided.It is characterized in water white transparency, light transmission rate more than 90%, cementing strength
Well, can solidify under room temperature or medium temperature and have cure shrinkage small etc..Optical adhesive film is different or same due to the raw material used
The difference that kind raw material prepare metering causes its species various, and the major ingredient that manufacture optical adhesive film uses has：Organic silicon rubber, gather
Urethane, epoxy resin, acrylic type resin and unsaturated polyester (UP) etc., some auxiliary materials are generally added when preparing, to improve it
Optical property reduces cure shrinkage, and these transparent auxiliary materials can ensure that transparent and sufficient display brightness, and provide durable
Adhesive effect.
OCA optical adhesive films include optical cement layer, the light release layer for being covered in optical cement layer two sides, weight release layer.OCA light
It is a kind of transparent colloid for condensing state densification to learn glue-line.OCA optical cements are usually to be provided in the form of coiled strip in semi-finished product,
According to the shape of produced product, specification, the OCA optical films of the shape required for being punched into by cutting die；It is punched
OCA optical films are generally positioned in box or simply after packaging for used in production.
OCA in the market is mainly acrylic polymer gel mould, because polymer cohesive force is low, is returned in attachment
Repair and do not allow during unqualified part easily peelable, leave cull sometimes, cause to reprocess difficult or whole screen and scrap.It is simultaneously yellow
Varying index is also higher, can influence the visual effect of screen, and part commercially available prod in use for some time can be under brightness
Drop.Therefore, it is necessary to study a kind of heat-resisting color inhibition of high cohesion without base material double sided optical glued membrane to meet market more and more higher
Requirement.
The content of the invention
The application provides a kind of improved optical clear glued membrane and its manufacture method.
According to the application's in a first aspect, the application provides a kind of optical clear glued membrane, it includes optical solidified liquid optics
Glue, the optical solidified liquid optical cement are formed by prepolymer, reactive diluent, light trigger, crosslinking accelerator configuration；Institute
State crosslinking accelerator and be selected from polyfunctionality mercaptan and its derivative.
Preferably, the prepolymer is selected from unsaturated polyester (UP), epoxy acrylate, polyurethane-acrylate, polyester acrylic
One or more in ester, polyether acrylate, pure acrylic resin.
Preferably, the prepolymer is polyurethane-acrylate or polyester acrylate.
Preferably, the prepolymer is aliphatic urethane acrylate.
Preferably, the reactive diluent is selected from mono-functional reactive's diluent, di-functional reactive's diluent, multifunctional
One or more in group's reactive diluent, the esters of acrylic acid reactive diluent with specific function.
Preferably, the reactive diluent is di-functional reactive's diluent, polyfunctional group reactive diluent or has spy
The esters of acrylic acid reactive diluent of distinguished service energy.
Preferably, the reactive diluent is the esters of acrylic acid reactive diluent with specific function.
Preferably, the light trigger is selected from acylphosphine oxide, acetophenone derivs, Benzophenone and its derivative, benzene
One or more in GA ester.
Preferably, the light trigger is Benzophenone and its derivative.
According to the second aspect of the application, the application provides a kind of manufacture method of optical clear glued membrane, and it includes as follows
Step：
One heavy mould release membrance is provided, optical solidified liquid optical cement is coated on weight mould release membrance using coating machine；
Ultraviolet light solidification is carried out to optical solidified liquid optical cement after the diffusion uniformly of optical solidified liquid optical cement；
One light mould release membrance is provided, covered on the optical solidified liquid optical cement after solidification.
The beneficial effect of the application is：The optical clear glued membrane of the present invention is by introducing the thiol-cured promotion of polyfunctionality
Agent, increase the degree of cross linking of optical adhesive film and efficiency is fully cured, so that the cohesive force of cured glue film strengthens and solidified
Residual is few after complete, improved heat resistance.When using optical clear glued membrane manufactured by the present invention, only need in rework process by
The glued membrane at some angle is gently peeled off, and is then wound around on glass bar or the thin rod of other cylinders, easily will can entirely be pasted
Dress glued membrane peels, and does not remain.Simultaneously in test process, special multi-functional group thiol is being used as solidification
After accelerator, the brightness of optical adhesive film has been lifted, and average full light transmittance is maintained at more than 97%.
Embodiment
The application is described in further detail below by embodiment.
The invention discloses a kind of manufacture method of optical clear glued membrane, specifically comprise the following steps：
S1, a heavy mould release membrance is provided, optical solidified liquid optical cement is coated on weight mould release membrance using coating machine；
S2, ultraviolet light solidification is carried out to optical solidified liquid optical cement after the diffusion uniformly of optical solidified liquid optical cement；
S3, a light mould release membrance is provided, covered on the optical solidified liquid optical cement after solidification.
In certain embodiments, also comprise the following steps after step S3：
S4：Cut into multiple optical clear glued membranes of preliminary dimension specification.
The invention also discloses a kind of optical clear glued membrane, and it includes optical solidified liquid optical cement, the optical solidified liquid light
Learning glue is formed by prepolymer, reactive diluent, light trigger, crosslinking accelerator configuration.
Wherein, prepolymer is selected from unsaturated polyester (UP), epoxy acrylate, polyurethane-acrylate, polyester acrylate, polyethers
One or more in acrylate, pure acrylic resin.In the present embodiment, prepolymer is preferably polyurethane-acrylate or gathered
Ester acrylate, it is highly preferred that prepolymer is aliphatic urethane acrylate；
Wherein, reactive diluent is selected from mono-functional reactive's diluent, di-functional reactive's diluent, polyfunctional group activity
One or more in diluent, the esters of acrylic acid reactive diluent with specific function.In the present embodiment, activity dilution
Agent is preferably di-functional reactive's diluent, polyfunctional group reactive diluent or the esters of acrylic acid activity with specific function
Diluent, it is further preferred that reactive diluent is the esters of acrylic acid reactive diluent with specific function；
Wherein, light trigger is selected from acylphosphine oxide, acetophenone derivs, Benzophenone and its derivative, benzoyl first
One or more in acid esters.In the present embodiment, light trigger is preferably Benzophenone and its derivative；
Wherein, crosslinking accelerator is selected from polyfunctionality mercaptan and its derivative.
In addition, above-mentioned heavy mould release membrance is the PET film for being coated with weight mould release, above-mentioned light mould release membrance is also that to be coated with hydrogen release
The PET film of agent.
To sum up, optical clear glued membrane of the invention increases optical cement by introducing the thiol-cured accelerator of polyfunctionality
The degree of cross linking of film and efficiency is fully cured so that remained after the cohesive force enhancing of cured glue film and completion of cure it is few, it is resistance to
Hot improvement.When using the optical clear glued membrane manufactured by the present invention, only needed in rework process the glued membrane at some angle is light
It is light to peel off, it is then wound around on glass bar or the thin rod of other cylinders, easily can peels whole attachment glued membrane,
And do not remain.Simultaneously in test process, after special multi-functional group thiol has been used as curing accelerator, optics
The brightness of glued membrane has been lifted, and average full light transmittance is maintained at more than 97%.
Just further proved by experimental data below, it is specific as follows：
Photocurable optics of liquids glue preparation example：
Note：It is above typical value, the particular requirement for being not intended as this patent limits.
It is coated with curing process：
It is coated with respectively to be coated with the optics of liquids glue of above example and comparative example on experiment production line in photocuring and solidifies
Into optical adhesive film, coating 180 microns of film thickness of control, 15 ms/min of coating speed.
Double sided optical glue film performance：
Note：It is above typical value, the particular requirement for being not intended as this patent limits.The invention is not limited in above-mentioned detailed
Formula form and preparation technology, for the present invention any improvement, to the equivalence replacement and auxiliary of each raw material of product of the present invention
The addition of composition, the selection of preparation method etc., belongs to protection scope of the present invention.
Can clearly it be drawn by above comparative example and embodiment, it is special to be introduced in photocurable optics of liquids glue
After thio-alcohol crosslinking accelerator, remained less after the enhancing of optical adhesive film cohesive force and completion of cure after photocuring, heat resistance changes
It is kind.
Above content is to combine the further description that specific embodiment is made to the application, it is impossible to assert this Shen
Specific implementation please is confined to these explanations.For the application person of an ordinary skill in the technical field, do not taking off
On the premise of conceiving from the present application, some simple deduction or replace can also be made.
Claims (10)
1. a kind of optical clear glued membrane, it is characterised in that including optical solidified liquid optical cement, the optical solidified liquid optical cement is
Formed by prepolymer, reactive diluent, light trigger, crosslinking accelerator configuration；The crosslinking accelerator is selected from polyfunctionality sulphur
Alcohol and its derivative.
2. optical clear glued membrane according to claim 1, it is characterised in that the prepolymer is selected from unsaturated polyester (UP), ring
One or more in oxypropylene acid esters, polyurethane-acrylate, polyester acrylate, polyether acrylate, pure acrylic resin.
3. optical clear glued membrane according to claim 1, it is characterised in that the prepolymer is polyurethane-acrylate or gathered
Ester acrylate.
4. optical clear glued membrane according to claim 1, it is characterised in that the prepolymer is aliphatic polyurethane propylene
Acid esters.
5. optical clear glued membrane according to claim 1, it is characterised in that the reactive diluent is lived selected from simple function group
Property diluent, di-functional reactive's diluent, polyfunctional group reactive diluent, have specific function esters of acrylic acid activity it is dilute
Release the one or more in agent.
6. optical clear glued membrane according to claim 1, it is characterised in that the reactive diluent is di-functional reactive
Diluent, polyfunctional group reactive diluent or the esters of acrylic acid reactive diluent with specific function.
7. optical clear glued membrane according to claim 1, it is characterised in that the reactive diluent is with specific function
Esters of acrylic acid reactive diluent.
8. optical clear glued membrane according to claim 1, it is characterised in that the light trigger aoxidizes selected from acylphosphanes
One or more in thing, acetophenone derivs, Benzophenone and its derivative, benzoyl formiate.
9. optical clear glued membrane according to claim 1, it is characterised in that the light trigger is Benzophenone and its derivative
Thing.
10. the manufacture method of the optical clear glued membrane as described in any one of Claims 1-4, it is characterised in that including following step
Suddenly：
One heavy mould release membrance is provided, optical solidified liquid optical cement is coated on weight mould release membrance using coating machine；
Ultraviolet light solidification is carried out to optical solidified liquid optical cement after the diffusion uniformly of optical solidified liquid optical cement；
One light mould release membrance is provided, covered on the optical solidified liquid optical cement after solidification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710858163.7A CN107556938A (en) | 2017-09-20 | 2017-09-20 | A kind of optical clear glued membrane and its manufacture method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710858163.7A CN107556938A (en) | 2017-09-20 | 2017-09-20 | A kind of optical clear glued membrane and its manufacture method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166461A (en) * | 2018-09-30 | 2019-01-08 | 昆山国显光电有限公司 | Display panel and its manufacturing method and display device |
| CN109536051A (en) * | 2018-12-07 | 2019-03-29 | 深圳市宝力新材料有限公司 | A kind of low dielectric OCA optical cement, optical adhesive film and its membrane preparation method |
| CN109594420A (en) * | 2018-12-27 | 2019-04-09 | 浙江博力莫新材料科技有限公司 | A kind of release paper and preparation method thereof for flooring laminate production |
| CN110643288A (en) * | 2019-09-29 | 2020-01-03 | 新纶科技（常州）有限公司 | OCA optical adhesive tape with high biobased content and preparation method thereof |
| CN114517070A (en) * | 2022-02-25 | 2022-05-20 | 四川中久国峰科技有限公司 | High-purity acrylate adhesive, preparation method and application thereof, optical transparent film and preparation method |
| CN115558458A (en) * | 2022-03-15 | 2023-01-03 | 中国科学院福建物质结构研究所 | Acrylate optical adhesive, preparation method thereof, OCA optical adhesive film and application thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106398554A (en) * | 2016-05-12 | 2017-02-15 | 张家港康得新光电材料有限公司 | Ultraviolet-cured pressure-sensitive adhesive and preparation method therefor |
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2017
- 2017-09-20 CN CN201710858163.7A patent/CN107556938A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106398554A (en) * | 2016-05-12 | 2017-02-15 | 张家港康得新光电材料有限公司 | Ultraviolet-cured pressure-sensitive adhesive and preparation method therefor |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109166461A (en) * | 2018-09-30 | 2019-01-08 | 昆山国显光电有限公司 | Display panel and its manufacturing method and display device |
| CN109166461B (en) * | 2018-09-30 | 2022-02-22 | 广州国显科技有限公司 | Display panel, manufacturing method thereof and display device |
| CN109536051A (en) * | 2018-12-07 | 2019-03-29 | 深圳市宝力新材料有限公司 | A kind of low dielectric OCA optical cement, optical adhesive film and its membrane preparation method |
| CN109594420A (en) * | 2018-12-27 | 2019-04-09 | 浙江博力莫新材料科技有限公司 | A kind of release paper and preparation method thereof for flooring laminate production |
| CN109594420B (en) * | 2018-12-27 | 2021-04-23 | 浙江博力莫新材料科技有限公司 | Release paper for floor leather production and preparation method thereof |
| CN110643288A (en) * | 2019-09-29 | 2020-01-03 | 新纶科技（常州）有限公司 | OCA optical adhesive tape with high biobased content and preparation method thereof |
| CN114517070A (en) * | 2022-02-25 | 2022-05-20 | 四川中久国峰科技有限公司 | High-purity acrylate adhesive, preparation method and application thereof, optical transparent film and preparation method |
| CN114517070B (en) * | 2022-02-25 | 2022-12-09 | 四川中久国峰科技有限公司 | High-purity acrylate adhesive, preparation method and application thereof, optical transparent film and preparation method |
| CN115558458A (en) * | 2022-03-15 | 2023-01-03 | 中国科学院福建物质结构研究所 | Acrylate optical adhesive, preparation method thereof, OCA optical adhesive film and application thereof |
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Application publication date: 20180109 |