CN107065048A - A kind of prismatic lens with excellent reliability and preparation method thereof - Google Patents
A kind of prismatic lens with excellent reliability and preparation method thereof Download PDFInfo
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- CN107065048A CN107065048A CN201611218762.4A CN201611218762A CN107065048A CN 107065048 A CN107065048 A CN 107065048A CN 201611218762 A CN201611218762 A CN 201611218762A CN 107065048 A CN107065048 A CN 107065048A
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- prismatic lens
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
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Abstract
The present invention relates to optical film field, specifically related to a kind of prismatic lens with excellent reliability and preparation method thereof, the prismatic lens includes structure sheaf, transparent substrate layer, particle layer successively, and the structure sheaf includes oligomer component, diluting monomer, vinylidene chloride methyl acrylate copolymer, light trigger and surface modifier；The transparent substrate layer is macromolecule copolymer resin；The particle layer includes solvent-borne type ultraviolet-curing resin glue, solvent, organic filler and dispersant；The prismatic lens that the present invention is provided has excellent reliability, reduces the brightness decay phenomenon that conventional prismatic lens occurs under hot and humid environment, it is therefore prevented that the phenomenon of fold occurs in the hot and humid rear film of experience.
Description
Technical field
The present invention relates to optical film field, and in particular to a kind of prismatic lens with excellent reliability and preparation method thereof.
Background technology
Prismatic lens is a series of diaphragm for having regular parallel prisms on the surface of diaphragm, and light is penetrated in side by it by prism
Switch to front lighting and collect reflected light to improve the brightness that backlight is overall, also referred to as blast piece, brightness enhancement film.
Prismatic lens is used to increase the brightness of backlight module in many electronic products, including for TV, computer, navigation
The display screen in the fields such as instrument, automobile, mobile phone, camera.The increase of brightness causes backlight module just to cause using less energy
Electronic product can effective operation, so as to reduce the consumption of energy, the thermic load to element is lower, and extends the use of product
Life-span.
The prism structure on prismatic lens surface is to be solidificated in its surface, the refraction for the material that prism is used by light-cured resin
Rate has an impact to its brightness, it is generally the case that the luminance gain of prismatic lens is mainly the refractive index by improving light-cured resin.
There is the polymeric material using high index of refraction to be added as light-cured resin, or in light-cured resin by the way of at present
Inorganic nano-particle is to improve its refractive index.However, the equal existing defects of both approaches：
For the polymer prepared available for prismatic lens, its maximum refractive index can reach 1.60 or so, but its viscosity meeting
Reach more than 10000, it is impossible to which the requirement for meeting existing volume production forming and hardening (typically requires viscosity<5000cps/25℃)；
Mode for adding inorganic nano-particle in light-cured resin China and foreign countries, although refractive index can be met and be more than 1.60
It is required that, but addition inorganic nano-particle it is incompatible with the polymer of organic and reunite, lamination.Prolonged
Use, undergo different degrees of high/low temperature alternation, high low humidity change, the surface texture layer of prismatic lens can be layered, come off
Etc. phenomenon, so as to cause that the ageing-resistant of product, resistance to elevated temperatures are poor, brightness decay is too fast, and then is easily caused product diaphragm
Picture it is abnormal.
In addition, the matrix material of prismatic lens is usually polyester-based polymer material, and it is more sensitive to moisture, hot and humid
Under conditions of, it may occur that fold etc. influences the bad of backlight overall picture.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of prismatic lens with excellent reliability and its preparation side
Method.Reduce the brightness decay phenomenon that conventional prismatic lens occurs under hot and humid environment, it is therefore prevented that the hot and humid caudacoria of experience
There is the phenomenon of fold in piece.
To realize object above, the present invention is achieved by the following technical programs:
A kind of prismatic lens with excellent reliability, the prismatic lens includes structure sheaf, transparent substrate layer, particle successively
Layer；
The structure sheaf includes the material of following parts by weight：20-50 parts of oligomer components, 20-80 parts of diluting monomers, 10-
50 parts of vinylidene chloride-methyl acrylate copolymers, 1-10 parts of light triggers and 0.1-1 parts of surface modifiers；
The transparent substrate layer is macromolecule copolymer resin；
The particle layer includes the material of following parts by weight：30-50 parts of solvent-borne type ultraviolet-curing resin glue, 20-50 parts
Solvent, 0.1-2 part organic filler and 0.01-0.5 parts of dispersants.
It is preferred that, the oligomer component is selected from epoxy acrylic resin, polyurethane acrylic resin, amino modified propylene
Obtained in acid resin, PE modified acrylic resin, polyester acrylate resin one or more.
It is preferred that, the dilution property monomer is hexanediyl ester or ethoxylated bisphenol A diacrylates.
It is preferred that, the macromolecule copolymer resin is polyethylene terephthalate, makrolon, poly- naphthalenedicarboxylic acid
Glycol ester, cyclic olefine copolymer, polyarylate, polyether sulfone or polymethyl methacrylate.
It is preferred that, the transparent polyester film that the transparent substrate layer is prepared for three-layer co-extruded, stretch processes, including master
Layer and the auxiliary layer composition for being attached to main stor(e)y two sides, the main stor(e)y material is polyethylene terephthalate, the auxiliary layer material
For PEN.
It is preferred that, the solvent-borne type ultraviolet-curing resin glue includes epoxy resin, crylic acid resin, polyurethanes
Or the one or more in polyester resin.
It is preferred that, the solvent is one or more combinations in ethyl acetate, butyl acetate, butanone, toluene.
It is preferred that, the organic filler includes one kind or at least two combination in PMMA, PBMA, PS, Nylon, has
The particle diameter of machine particle is 5-15 μm.
It is preferred that, the dispersant is unsaturated polycarboxylic acid polymers, polysiloxanes EVA, polyether polymer, fat
One or more combinations in fat acid chemical classes.
A kind of preparation method of the prismatic lens with excellent reliability, comprises the following steps：
(1) take by the three-layer co-extruded transparent base being made of two extruderses, described particle layer coating fluid passes through nick roller
It is applied on substrate surface, by 70-90 DEG C of dry 1-3min of baking oven, particle layer is being solidify to form by UV lamp irradiation, now,
The another side of substrate layer is used as upper surface；The gross energy of UV lamp is controlled in 380-450J/cm2；
(2) it is coated with one layer of prism structural layer in the upper surface of substrate layer., first will be solvent-free when prepared by the prism structural layer
Type ultraviolet-curing resin glue application is irradiated by UV lamp, made on the upper surface of base material immediately by structure roller extrusion forming
Its curing molding, forms the prism structural layer with micro-prism structure, the energy hole of the UV lamp is in 400-450J/cm2。
Beneficial effects of the present invention：The invention provides a kind of prismatic lens with excellent reliability and preparation method thereof,
Vinylidene chloride-methyl acrylate copolymer is added in the structure sheaf of the prismatic lens, the steam that can effectively completely cut off in air is prevented
The intrusion of sealing vapour causes the bad phenomenons such as the fold of diaphragm.
The matrix material of the prismatic lens employs the excellent PEN of water isolating, effectively prevent
Erosion of the steam to prismatic lens matrix material in air.Compared with existing prismatic lens, the prismatic lens that provides of the present invention can be with
The ageing-resistant performance of material is effectively improved, with excellent reliability.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1：The structural representation of prismatic lens with excellent reliability,
Wherein 1 is the structure sheaf of prismatic lens, and 2 be particle layer, and 21 be particle, and 3 and 4 be transparent substrate layer.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.
Embodiment 1：
A kind of prismatic lens with excellent reliability that the present invention is provided, including structure sheaf, transparent substrate layer, particle layer.
Using three layers of 188 μm of polyester base material of stretch processes preparation, the main stor(e)y and PEN that the polyester base material includes polyester PET are
The auxiliary layer of auxiliary layer material；Take the mass parts of polyurethane based resin glue 30, the mass parts of butyl acetate solvent 25, the matter of PMMA particles 0.5
Part is measured, the mass parts of polysiloxanes EVA dispersant 0.05 are applied to the surface of polyester base material with agitator, put after well mixed
75 DEG C of dry 1min, then use high-pressure sodium lamp with 380J/cm in baking oven2Gross energy above-mentioned film is irradiated, make
Its UV is hardened, and obtains the polyester base material with particle layer；
By epoxy acrylic resin, the hexylene glycol two of 25 mass parts of light curing resin composition, including 25 mass parts
Vinylidene chloride-methyl acrylate copolymer of acrylate monomer, 10 mass parts, 2 mass parts light triggers and 0.15 mass parts
Surface modifier.The upper surface of polyester base material is coated on, by special engraved roll extrusion forming, and with 400J/cm2High pressure
Hg lamp irradiation, makes its curing molding, finally gives prismatic lens.The height of the prismatic lens is 50 μm, and the angle of drift angle is 90 °.
Embodiment 2：
A kind of prismatic lens with excellent reliability that the present invention is provided, including structure sheaf, transparent substrate layer, particle layer.
Using three layers of 188 μm of polyester base material of stretch processes preparation, the main stor(e)y and PEN that the polyester base material includes polyester PET are
The auxiliary layer of auxiliary layer material；Take the mass parts of polyurethane based resin glue 35, the mass parts of butyl acetate solvent 40, the matter of PMMA particles 0.1
Part is measured, the mass parts of polysiloxanes EVA dispersant 0.02 are applied to the surface of polyester base material with agitator, put after well mixed
80 DEG C of dry 1min, then use high-pressure sodium lamp with 400J/cm in baking oven2Gross energy above-mentioned film is irradiated, make
Its UV is hardened, and obtains the polyester base material with particle layer；
By epoxy acrylic resin, the hexylene glycol two of 40 mass parts of light curing resin composition, including 25 mass parts
Vinylidene chloride-methyl acrylate copolymer of acrylate monomer, 20 mass parts, 5 mass parts light triggers and 0.1 mass parts
Surface modifier.The upper surface of polyester base material is coated on, by special engraved roll extrusion forming, and with 400J/cm2High-pressure mercury
Light irradiation, makes its curing molding, finally gives prismatic lens.The height of the prismatic lens is 50 μm, and the angle of drift angle is 90 °.
Embodiment 3：
A kind of prismatic lens with excellent reliability that the present invention is provided, including structure sheaf, transparent substrate layer, particle layer.
Using three layers of 225 μm of polyester base material of stretch processes preparation, the main stor(e)y and PEN that the polyester base material includes polyester PET are
The auxiliary layer of auxiliary layer material；Take the mass parts of polyurethane based resin glue 40, the mass parts of butyl acetate solvent 42, the matter of PMMA particles 1.2
Part is measured, the mass parts of polysiloxanes EVA dispersant 0.2 are applied to the surface of polyester base material with agitator, put after well mixed
80 DEG C of dry 1min, then use high-pressure sodium lamp with 400J/cm in baking oven2Gross energy above-mentioned film is irradiated, make
Its UV is hardened, and obtains the polyester base material with particle layer；
By epoxy acrylic resin, the hexylene glycol two of 50 mass parts of light curing resin composition, including 35 mass parts
Vinylidene chloride-methyl acrylate copolymer of acrylate monomer, 30 mass parts, 5 mass parts light triggers and 0.5 mass parts
Surface modifier.The upper surface of polyester base material is coated on, by special engraved roll extrusion forming, and with 420J/cm2High-pressure mercury
Light irradiation, makes its curing molding, finally gives prismatic lens.The height of the prismatic lens is 50 μm, and the angle of drift angle is 90 °.
Embodiment 4：
A kind of prismatic lens with excellent reliability that the present invention is provided, including structure sheaf, transparent substrate layer, particle layer.
Using three layers of 225 μm of polyester base material of stretch processes preparation, the main stor(e)y and PEN that the polyester base material includes polyester PET are
The auxiliary layer of auxiliary layer material；Take the mass parts of polyurethane based resin glue 45, the mass parts of butyl acetate solvent 40, the matter of PMMA particles 1.5
Part is measured, the mass parts of polysiloxanes EVA dispersant 0.3 are applied to the surface of polyester base material with agitator, put after well mixed
85 DEG C of dry 1min, then use high-pressure sodium lamp with 420J/cm in baking oven2Gross energy above-mentioned film is irradiated, make
Its UV is hardened, and obtains the polyester base material with particle layer；
By epoxy acrylic resin, the hexylene glycol two of 50 mass parts of light curing resin composition, including 35 mass parts
Vinylidene chloride-methyl acrylate copolymer of acrylate monomer, 30 mass parts, 5 mass parts light triggers and 0.6 mass parts
Surface modifier.The upper surface of polyester base material is coated on, by special engraved roll extrusion forming, and with 420J/cm2High-pressure mercury
Light irradiation, makes its curing molding, finally gives prismatic lens.The height of the prismatic lens is 50 μm, and the angle of drift angle is 90 °.
Embodiment 5:
A kind of prismatic lens with excellent reliability that the present invention is provided, including structure sheaf, transparent substrate layer, particle layer.
Using three layers of 250 μm of polyester base material of stretch processes preparation, the main stor(e)y and PEN that the polyester base material includes polyester PET are
The auxiliary layer of auxiliary layer material；Take the mass parts of polyurethane based resin glue 48, the mass parts of butyl acetate solvent 50, the matter of PMMA particles 1.6
Part is measured, the mass parts of polysiloxanes EVA dispersant 0.25 are applied to the surface of polyester base material with agitator, put after well mixed
85 DEG C of dry 1min, then use high-pressure sodium lamp with 420J/cm in baking oven2Gross energy above-mentioned film is irradiated, make
Its UV is hardened, and obtains the polyester base material with particle layer；
By epoxy acrylic resin, the hexylene glycol two of 60 mass parts of light curing resin composition, including 35 mass parts
Vinylidene chloride-methyl acrylate copolymer of acrylate monomer, 40 mass parts, 8 mass parts light triggers and 0.8 mass parts
Surface modifier.The upper surface of polyester base material is coated on, by special engraved roll extrusion forming, and with 420J/cm2High-pressure mercury
Light irradiation, makes its curing molding, finally gives prismatic lens.The height of the prismatic lens is 50 μm, and the angle of drift angle is 90 °.
Embodiment 1-5 prismatic lens is sampled, is placed into hot and humid Alternating Test case, experiment condition is 60 DEG C, 90%
RH, 1000hr, viewing prism piece are put into the outward appearance before and after chamber, the optical gain effect before and after test.
Embodiment 1-5 prismatic lens, undergoes after hot and humid condition, and outward appearance has no big change, and the optics of test increases
Beneficial effect is not substantially reduced.
Optical data before and after embodiment 1-5 prismatic lens experience is hot and humid
Tester is BM-7A, and test modular architecture is two prismatic lenses, a diffusion sheets.
To sum up, a kind of prismatic lens with excellent reliability that the present invention is provided, can be effectively improved the ageing-resistant of material
Performance, with excellent reliability.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Also there is other identical element in process, method, article or equipment including the key element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a kind of prismatic lens with excellent reliability, it is characterised in that the prismatic lens includes structure sheaf, transparent base successively
Layer, particle layer；
The structure sheaf includes the material of following parts by weight：20-50 parts of oligomer components, 20-80 parts of diluting monomers, 10-50 parts
Vinylidene chloride-methyl acrylate copolymer, 1-10 parts of light triggers and 0.1-1 parts of surface modifiers；
The transparent substrate layer is macromolecule copolymer resin；
The particle layer includes the material of following parts by weight：30-50 parts of solvent-borne type ultraviolet-curing resin glue, 20-50 parts of solvents,
0.1-2 parts of organic fillers and 0.01-0.5 parts of dispersants.
2. there is the prismatic lens of excellent reliability as claimed in claim 1, it is characterised in that the oligomer component is selected from ring
Oxypropylene acid resin, polyurethane acrylic resin, amino modified acrylic resin, PE modified acrylic resin, polyester third
Obtained in olefin(e) acid resin one or more.
3. as claimed in claim 2 have excellent reliability prismatic lens, it is characterised in that the dilution monomer for oneself two
Alcohol diacrylate or ethoxylated bisphenol A diacrylates.
4. there is the prismatic lens of excellent reliability as claimed in claim 3, it is characterised in that the macromolecule copolymer resin
For polyethylene terephthalate, makrolon, PEN, cyclic olefine copolymer, polyarylate, polyether sulfone
Or polymethyl methacrylate.
5. there is the prismatic lens of excellent reliability as claimed in claim 4, it is characterised in that the transparent substrate layer is three layers
Transparent polyester film prepared by co-extrusion, stretch processes, including main stor(e)y and the auxiliary layer composition for being attached to main stor(e)y two sides, the master
Layer material is polyethylene terephthalate, and the auxiliary layer material is PEN.
6. there is the prismatic lens of excellent reliability as claimed in claim 5, it is characterised in that the solvent-borne type ultra-violet curing tree
Fat glue includes the one or more in epoxy resin, crylic acid resin, polyurethanes or polyester resin.
7. there is the prismatic lens of excellent reliability as claimed in claim 6, it is characterised in that the solvent is ethyl acetate,
One or more combinations in butyl acetate, butanone, toluene.
8. there is the prismatic lens of excellent reliability as claimed in claim 7, it is characterised in that the organic filler includes
One kind or at least two combination in PMMA, PBMA, PS, Nylon, the particle diameter of organic filler is 5-15 μm.
9. there is the prismatic lens of excellent reliability as claimed in claim 8, it is characterised in that the dispersant is unsaturated many
One or more combinations in first carboxylic acid polyalcohol, polysiloxanes EVA, polyether polymer, fatty acid chemistry class.
10. a kind of preparation method of prismatic lens with excellent reliability as described in claim 1-9 is any, its feature exists
In comprising the following steps：
(1) take by the three-layer co-extruded transparent base being made of two extruderses, described particle layer coating fluid passes through micro- gravure roller coating
Onto substrate surface, by 70-90 DEG C of dry 1-3min of baking oven, particle layer, now, base material are being solidify to form by UV lamp irradiation
The another side of layer is used as upper surface；The gross energy of UV lamp is controlled in 380-450J/cm2；
(2) it is coated with one layer of prism structural layer in the upper surface of substrate layer.It is first that no-solvent type is purple when prepared by the prism structural layer
Outer solidified resin glue application is irradiated by UV lamp immediately on the upper surface of base material by structure roller extrusion forming, consolidates it
Chemical conversion type, forms the prism structural layer with micro-prism structure, the energy hole of the UV lamp is in 400-450J/cm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611218762.4A CN107065048A (en) | 2016-12-26 | 2016-12-26 | A kind of prismatic lens with excellent reliability and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611218762.4A CN107065048A (en) | 2016-12-26 | 2016-12-26 | A kind of prismatic lens with excellent reliability and preparation method thereof |
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| Publication Number | Publication Date |
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| CN107065048A true CN107065048A (en) | 2017-08-18 |
Family
ID=59624340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201611218762.4A Pending CN107065048A (en) | 2016-12-26 | 2016-12-26 | A kind of prismatic lens with excellent reliability and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609412A (en) * | 2018-06-15 | 2019-12-24 | 夏普株式会社 | Illumination device and display device |
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| CN105093367A (en) * | 2015-08-11 | 2015-11-25 | 宁波长阳科技有限公司 | Composite brightness enhancement film and preparation method thereof |
| CN105301826A (en) * | 2015-10-14 | 2016-02-03 | 宁波长阳科技有限公司 | Brightness enhancement film applied in large-size display |
| KR20160072653A (en) * | 2014-12-15 | 2016-06-23 | (주)이노큐디 | Enhancement of Prism function Using the Low Refractive Index Light Dispersive Coating Layer for Quantum Dot Sheet |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101573642A (en) * | 2006-11-17 | 2009-11-04 | 大日本印刷株式会社 | Optical film, polarizing plate and image display device |
| CN103507312A (en) * | 2009-02-16 | 2014-01-15 | 日东电工株式会社 | Material roll and method for manufacturing material roll |
| CN101839441A (en) * | 2010-04-23 | 2010-09-22 | 上海凯鑫森产业投资控股有限公司 | Optical prism sheet for backlight module |
| KR20160072653A (en) * | 2014-12-15 | 2016-06-23 | (주)이노큐디 | Enhancement of Prism function Using the Low Refractive Index Light Dispersive Coating Layer for Quantum Dot Sheet |
| CN105093367A (en) * | 2015-08-11 | 2015-11-25 | 宁波长阳科技有限公司 | Composite brightness enhancement film and preparation method thereof |
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| CN110609412A (en) * | 2018-06-15 | 2019-12-24 | 夏普株式会社 | Illumination device and display device |
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