CN109735216A - A kind of composition and a kind of anti-moisture absorption brightness enhancement film and its application - Google Patents
A kind of composition and a kind of anti-moisture absorption brightness enhancement film and its application Download PDFInfo
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- CN109735216A CN109735216A CN201811572413.1A CN201811572413A CN109735216A CN 109735216 A CN109735216 A CN 109735216A CN 201811572413 A CN201811572413 A CN 201811572413A CN 109735216 A CN109735216 A CN 109735216A
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- brightness enhancement
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Abstract
The present invention relates to function film fields, more particularly, to a kind of composition and a kind of anti-moisture absorption brightness enhancement film.In order to solve the problems, such as that current brightness enhancement film is also easy to produce moisture absorption warpage in storage and use process, the present invention provides a kind of composition and a kind of anti-moisture absorption brightness enhancement film.Composition provided by the invention includes the first monomer, second comonomer, light-cured resin, photoinitiator and auxiliary agent.Anti- moisture absorption brightness enhancement film provided by the invention includes brightness enhancement layer, substrate layer and scratch resistant layer, and the two sides of the brightness enhancement layer and scratch resistant layer separation substrate, brightness enhancement layer composition provided by the present invention solidifies through ultraviolet light to be made.Brightness enhancement film prepared by the present invention not only brightness with higher and it is excellent resist anti-moisture absorption warpage performance, but also have both the excellent properties such as high-hardness, wearable.Composition provided by the invention and anti-moisture absorption brightness enhancement film preparation process are simple, easily operated, are convenient for industrialized production.
Description
Technical field
The present invention relates to function film field, more particularly, to a kind of composition and a kind of anti-moisture absorption brightness enhancement film and its
Using.
Background technique
Because having, thin, planar, light-weight, low energy consumption, radiationless, performance is stablized for liquid crystal display in flat panel display
Etc. series of advantages, and be widely used on the display screen of computer, mobile phone, TV, navigator, digital camera and some instruments.
Since liquid crystal display panel itself does not shine, critical component one of of the backlight module as liquid crystal display panel, main function is to mention
For enough brightness and uniform light.Backlight module is usually made of reflector plate, light guide plate, diffusion barrier and brightness enhancement film, wherein rising
To the mainly brightness enhancement film for promoting brightness function.As consumer is to the ultrathin of display, high brightness and power conservation requirement are mentioned
Height, specific gravity of the brightness enhancement film in mould group is increasing, especially the appearance of haze brightness enhancement film, can directly replace diffusion, at
For top layer's diaphragm in mould group.Why brightness enhancement film has the function of blast, is because micro- there are many brightness enhancement layers of brightness enhancement film
Prism is constituted, and is reflected to the light for passing through microprism, to change optical path and converge light.However, the increasing of brightness enhancement film
Contain hydrophilic group in light-cured resin used in bright layers, and micro-prism structure makes the specific surface of brightness enhancement layer positive
Greatly, brightness enhancement film is storing, transport, in use process, is easy the moisture absorbed in air and expands, when brightness enhancement film moisture absorption is uneven
It is even, or when being expanded without enough spaces, warpage will be generated, common includes edge wave warpage and bulge.Especially
It is after the brightness enhancement film of warpage forms complete machine, to light, the bad phenomenons such as hickie, shadow, Newton's ring often occur, cause image quality product
Taste decline, influences material normal use.The moisture absorption warpage issues for how solving brightness enhancement film are always to perplex a skill of the industry
Art problem.
Therefore, simple and effective manufacturing process is sought, developing one kind has anti-moisture absorption wave warpage, and high brightness has both
The brightness enhancement film of high-hardness, wearable has become one project urgently to be solved of field of optical films, with important economic value and
Practical value.
Summary of the invention
In order to solve the problems, such as that current brightness enhancement film is also easy to produce moisture absorption warpage, the present invention provides a kind of composition and a kind of anti-
Moisture absorption brightness enhancement film and its application.There is excellent anti-moisture absorption warpage performance after the curing of coatings of composition provided by the invention.This
The brightness enhancement film prepared not only brightness with higher and excellent anti-moisture absorption warpage performance are invented, while having both high-hardness, wearable
Equal excellent properties.Brightness enhancement film preparation process provided by the invention is simple, easily operated, is convenient for industrialized production.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical solutions:
The present invention provides a kind of composition, and the composition includes the first monomer, second comonomer, light-cured resin, and light draws
Send out agent and auxiliary agent.
Further, the raw material of the composition includes following compositions: the first monomer: 10-60 parts by weight；Second comonomer:
10-55 parts by weight；Light-cured resin: 10-50 parts by weight；Photoinitiator: 1-9 parts by weight；Auxiliary agent: 0.1-1 parts by weight；Wherein
The total weight parts of one monomer, second comonomer, light-cured resin and photoinitiator are 100 parts.
Further, the raw material of the composition includes following compositions: the first monomer: 25-46 parts by weight；Second comonomer:
20-45 parts by weight；Light-cured resin: 15-40 parts by weight；Photoinitiator: 2-6 parts by weight；Auxiliary agent: 0.3-0.7 parts by weight；Wherein
The total weight parts of first monomer, second comonomer, light-cured resin and photoinitiator are 100 parts.Preceding solution includes implementing
Example 4-7 and embodiment 9-10.
Further, the raw material of the composition includes following compositions: the first monomer: 30-40 parts by weight；Second comonomer:
25-40 parts by weight；Light-cured resin: 27-30 parts by weight；Photoinitiator: 3-5 parts by weight；Auxiliary agent: 0.4-0.5 parts by weight；Wherein
The total weight parts of first monomer, second comonomer, light-cured resin and photoinitiator are 100 parts.Preceding solution includes implementing
Example 6-7.
Further, the refractive index of the composition is 1.530-1.585.
Further, first monomer is single official's acrylic monomers (F=1) or two official's acrylic monomers (F=2).
The F is the abbreviation of functional group.
Further, first monomer is a kind of single official's acrylic monomers (F=1) or two official's acrylic monomers (F=2)
Or at least two combination.
Further, when first monomer is list official acrylic monomers (F=1), first monomer is selected from neighbour
Phenyl benzene ethoxy acrylate, 2 (ethyoxyl) phenyl benzene ethoxy acrylates, 3 (ethyoxyl) phenyl benzene ethoxy propylenes
Acid esters, thanatol acrylate, phenylthio ethyl acrylate, 2- (p- cumenyl-phenoxy group)-ethyl olefin(e) acid ester,
M-phenoxy benzyl propylene acid esters, one of benzyl (methyl) acrylate or biphenylmethanol acrylate or at least two
The combination of kind.
Further, when first monomer is list official acrylic monomers (F=1), preferably adjacent phenyl benzene ethyoxyl
Acrylate, 2 (ethyoxyl) phenyl benzene ethoxy acrylates, m-phenoxy benzyl propylene acid esters or biphenylmethanol acrylic acid
One of ester or at least two combination.
Further, when first monomer is two official's acrylic monomers (F=2), first monomer is selected from 2
(ethyoxyl) bisphenol-A two (methyl) acrylate, 3 (ethyoxyl) bisphenol-A two (methyl) acrylate, 4 (ethyoxyl) bisphenol-As two
(methyl) acrylate, 2 (ethyoxyl) bisphenol fluorene two (methyl) acrylate, 4 (ethyoxyl) bisphenol fluorene diacrylates, 6 (second
Oxygroup) one of bisphenol fluorene diacrylate or tristane dimethyl diacrylate or at least two combination.
Further, when first monomer is two official's acrylic monomers (F=2), first monomer is preferably 2
(ethyoxyl) bisphenol a diacrylate, one of 2 (ethyoxyl) bisphenol fluorene diacrylates or at least two combination.
Further, the second comonomer is more official's acrylic monomers (F >=3).For example, F=3-15.Such as: F=3, F
=4, F=5, F=6, F=9, F=10 or F=15.
Further, the second comonomer is the combination of more official's acrylic monomers (F >=3) or at least two.
Further, when the second comonomer is three official's acrylate (F=3), the second comonomer is selected from three (2- hydroxyl second
Base) isocyanuric acid triacrylate, trimethylolpropane tris (methyl) acrylate, pentaerythritol triacrylate or 3 (second
Oxygroup) one of trimethylolpropane tris (methyl) acrylate or at least two combination.
Further, when the second comonomer is four official's acrylate (F=4), the second comonomer is selected from pentaerythrite
Tetraacrylate or 4 (ethyoxyl) pentaerythritol tetraacrylates, two (trimethylolpropane) tetraacrylates or two kinds
Combination.
Further, when the second comonomer is face acrylate (F=5), the second comonomer is dipentaerythritol
Five acrylate.
Further, when the second comonomer is six official's acrylate (F=6), the second comonomer is selected from double Ji Wusi
Six acrylate of alcohol, GU6100L, GU6200Z, GU6300Y or GU6600Y of Guo Jing Chemical Co., Ltd., or moisten chemical industry difficult to understand
One of UT3009, R-7496 or UT58938 or at least two combination.
Further, when the second comonomer is nine official's acrylate (F=9), the second comonomer is selected from state and refines
The FSP73298 of GU7200Z or the profit chemical industry difficult to understand of Co., Ltd or two kinds of combination.
Further, when the second comonomer is ten official's acrylate (F=10), the second comonomer is selected from state and refines
The GU7400Z or GU7900Z of Co., Ltd, or moisten in the UT53956 of chemical industry difficult to understand or the DR-U96 or 6195-100 of Changxing chemical industry
One kind or at least two combination.
Further, when the second comonomer is ten face acrylate (F=15), the second comonomer is refined selected from state
Learn the GU7500Z of Co., Ltd or the 6363 of Changxing chemical industry or two kind of combination.
Further, first monomer is single official's acrylic monomers (F=1), and the second comonomer is six official's propylene
Acid esters (F=6), nine official's acrylate (F=9) or ten official's acrylate (F=10).Preceding solution includes embodiment 4-7,
Embodiment 9-10.
Further, first monomer is single official's acrylic monomers (F=1), and the second comonomer is six official's propylene
Acid esters (F=6) or nine official's acrylate (F=9).Preceding solution includes embodiment 6-7.
Further, the light-cured resin is selected from polyester acrylate resin, polyurethane acrylic resin, polyoxyalkylene acrylate
One of resin or epoxy acrylic resin or at least two combination.
Further, unsaturated containing two or more ethylene types in the molecular structure of the light-cured resin
Double bond.
Further, the light-cured resin is preferably one of polyester acrylate resin or polyurethane acrylic resin
Or two kinds of combination.
Further, the light-cured resin is preferably polyurethane acrylic resin.
Further, the photoinitiator is selected from 2- hydroxy-methyl phenyl-propane -1- ketone (1173), 1- hydroxy-cyclohexyl
Phenyl ketone (184), 2- methyl-1-(4- methyl mercapto phenyl)-2- morpholinyl-1- acetone (907), benzoin dimethylether (651),
2,4,6- trimethyl benzoyl diphenyl base phosphine oxide benzophenone (BP) or 2,4,6- trimethylbenzoy-dipheny oxygen
Change the combination of one of phosphine (TPO) or at least two.
Further, the photoinitiator is selected from one of TPO or 1173 or combinations thereof.
Further, the photoinitiator is preferably the combination of 1173 or TPO and 1173.
Further, the auxiliary agent is slipping agent.
Further, the slipping agent is commercially available common slipping agent, is selected from WE-D5410, WE-D5433, WE-
D5450, WE-D5457, WE-D7300, WE-D7500, WE-D7700, BYK-UV3500, BYK-UV3530, BYK-UV3535,
BYK-333, one of BYK-3570, BYK-378 or BYK-3510 or at least two combination.
Further, the slipping agent is in WE-D7700, WE-D7500, BYK-UV3500 or BYK-3535
It is a kind of or at least two combination.
Further, the slipping agent is selected from one of WE-D7700 or BYK-3500.
The present invention also provides a kind of brightness enhancement film, the brightness enhancement film includes brightness enhancement layer, and the brightness enhancement layer includes micro-structure.It is described
Micro-structure be optically focused micro-prism structure.
Further, the brightness enhancement layer has micro-prism structure.
Further, the brightness enhancement film successively includes brightness enhancement layer, substrate layer and scratch resistant layer.
The scratch resistant layer includes particle and resin, and the particle passes through resin-bonded on substrate layer.Further, described
The material of particle is polybutyl methacrylate, and particle diameter distribution is 1-30 μm；The resin material is acrylic resin；The grain
The weight ratio of son and resin material is 0.6-1.2:1.Further, the weight ratio of the particle and resin material is 0.8:
1。
Above-mentioned brightness enhancement film is applied in the backlight module of liquid crystal display, plays the function that optically focused improves brightness.
Further, the raw material of the brightness enhancement layer is composition provided by the invention.The brightness enhancement layer is provided by the present invention
Composition solidification after formed.
Further, the composition of the invention solidifies the curing mode used when brightness enhancement layer is made as UV light
Change；Further, UV energy is 200-600mJ/cm when composition solidification2。
Further, the glass transition temperature of the brightness enhancement layer is 65-155 DEG C.
Further, the glass transition temperature (Tg) of the brightness enhancement layer is 85-120 DEG C.
Further, the glass transition temperature (Tg) of the brightness enhancement layer is preferably 95-110 DEG C.
Further, the brightness enhancement layer has micro-structure, and the micro-structure is micro-prism structure.
Further, the prism bar height of the micro-prism structure is 10-500 μm, and corner angle are 80-105 °.
Further, the prism bar height of the micro-prism structure is 10-50 μm, and corner angle are 80-103 °.
Further, the prism bar is the linear type of wobble structure or rule.
Further, the linear type of the rule is also known as contour linear type, refers to that the height of single prism bar is constant
's.
Further, the wobble structure refers to difference of height of the height there are gradual change of single prism bar.
Further, it is 15-40 μm that the prism bar of the micro-prism structure is highly preferred, and corner angle are preferably 85-95 °.
Further, it is 20-30 μm that the prism bar of the micro-prism structure is highly preferred, and corner angle are preferably 90 °.
Further, the prism bar of the micro-prism structure is preferably wobble structure.
Further, the high short arc of the microprism of the wobble structure is ± 2 μm to ± 10 μm.
Further, the high short arc of the microprism of the wobble structure is preferably ± 3 μm to ± 4 μm.
Further, the brightness enhancement film further includes substrate layer, and the brightness enhancement layer is coated on the side of substrate layer.
Further, the brightness enhancement film further includes scratch resistant layer, and the scratch resistant layer is coated on the other side of substrate layer.
Further, the material of the substrate layer be selected from polycarbonate (PC), polyethylene terephthalate (PET),
In polyamide (PA), polystyrene (PS), polyethylene (PE), polypropylene (PP) or polymethyl methacrylate (PMMA)
One kind or at least two combination.
Further, the material of the substrate layer is preferably PC, PA or PET.
Further, the material of the substrate layer is preferably PET.
Further, the substrate layer with a thickness of 10-300 μm.
Further, the thickness of the substrate layer is preferably 50-250 μm.
Further, the thickness of the substrate layer is preferably 188-250 μm.
The brightness enhancement film is applied in the backlight module of liquid crystal display.
Further, the preparation method of the brightness enhancement film includes the following steps:
(1) transparent substrate layer is made using bidirectional extending method；
(2) one layer of resin liquid containing particle, warp are coated with by anilox roll in the side of substrate
Infrared heating solidification or ultraviolet radiation-curable are crossed, scratch resistant layer is formed.
(3) composition is coated on to the other side for the substrate layer that step (2) obtains, is rolled through mold and ultraviolet light
Solidification forms the brightness enhancement layer with micro-structure.
Pass through the brightness enhancement film product of the available excellent combination property of ratio of each component in the regulation present composition.
The first monomer in composition primarily serves the effect of diluent, adjusts obtained group by adjusting the parts by weight of the first monomer
The viscosity for closing object, makes it have appropriate processing range of viscosities.Second comonomer in composition is more official's monomers in photocuring
Play the role of improving crosslink density in reaction process, make the brightness enhancement layer obtained after solidifying that there is fine and close inierpeneirating network structure,
With high rigidity high scratch resistance energy.Light-cured resin in brightness enhancement layer provides the good adhesive force between substrate layer for coating
Effect.Auxiliary agent in composition is mainly slipping agent, and coating surface can be made to have preferable slipping, is conducive to improve blast
The scraping and wiping resistance performance of layer.Brightness enhancement layer is prepared by composition by ultraviolet light curing reaction, using more official's monomers as skeleton, each group
/ closely connected by intermolecular chemical bond, fine and close network structure is formd, the monomer containing hydrophilic radical to the greatest extent may be used
Being coated on inside network structure for energy, avoids contacting with the hydrone in external environment, so that the brightness enhancement film of preparation is with excellent
Anti- moisture absorption warpage performance.
Brightness enhancement film provided by the invention has high brightness and excellent anti-moisture absorption warpage performance, while because of more official's monomer accountings
It is larger, compact texture is formed after composition solidification, therefore, has both the very excellent properties such as high-hardness, wearable, it is possible to reduce cutting out
The scuffing cut, occurred in assembling process is bad, improves assembling yield and efficiency.The preparation method of brightness enhancement film provided by the invention is adopted
It is prepared with the optics film coating process of current maturation, simple process is mature, meets the condition of industrial mass production.
Compared with prior art, brightness enhancement film provided by the invention has apparent advantage compared with traditional brightness enhancement film, very well
The shortcomings that overcoming the anti-moisture absorption warpage difference of current brightness enhancement film and not damage resistant, the moisture absorption for solving brightness enhancement film from the root is asked
Topic improves the image quality taste of complete machine.Meanwhile blast membrane preparation method simple process provided by the invention, it is easily operated, also have
Whether there is or not the environment-friendly advantages of VOC emission.
Brightness enhancement film provided by the invention is a kind of brightness enhancement film of high-hardness, wearable, has high brightness and excellent anti-moisture absorption
Warpage performance, is particularly suitable for field of liquid crystal display, particularly suitable for being used in backlight module and lamp device, but be not limited to
On enumerate product.
Detailed description of the invention
Fig. 1 is a kind of the schematic diagram of the section structure of the brightness enhancement film of contour linear structure prepared by the present invention.
Fig. 2 is the schematic diagram of the section structure of the brightness enhancement film of another wobble structure prepared by the present invention.
Specific embodiment:
Below with reference to examples and drawings, the invention will be further elaborated, and following embodiment is to of the invention detailed
It describes in detail bright, is not the restriction to the claimed range of the present invention.The method is conventional method unless otherwise instructed.It is described
Raw material are commercial product unless otherwise instructed.
As shown in Figure 1, a kind of brightness enhancement film prepared by the present invention, including brightness enhancement layer 101, transparent substrate layer 102, scratch resistant layer
103.Brightness enhancement layer 101 has the prism of contour linear structure.
As shown in Fig. 2, another kind brightness enhancement film prepared by the present invention, including brightness enhancement layer 201, transparent substrate layer 202, scratch resistant layer
203.201 surface of brightness enhancement layer has the prism of wobble structure.
The present invention relates to the evaluations to composition and brightness enhancement film optical property is prepared.Required material and facility is existing
There is material and facility.
The preparation method of composition provided by the invention includes the following steps:
(1) precise addition each component is mixed in parts by weight；
(2) mixture for obtaining step (1) disperses 2 hours under 800-1000r/min revolving speed, then filters, obtain
Composition.
The preparation method of the brightness enhancement film includes the following steps:
(1) transparent substrate layer is made using bidirectional extending method；
(2) one layer of resin liquid containing particle is coated with by anilox roll in the side of substrate, solidified by infrared heating
Or ultraviolet radiation-curable, form scratch resistant layer；
(3) composition is coated on to the other side for the substrate layer that step (2) obtains, is rolled through mold and ultraviolet light
Solidification forms the brightness enhancement layer with micro-structure, obtains brightness enhancement film of the present invention
Wherein, include: to the evaluation of the optical property of composition
(1) composition drop refraction index test: is tested into its refractive index on Abbe refractometer (WAY-2S).
Wherein, include: to the evaluation of the physical property of brightness enhancement film and optical property
(1) brightness enhancement layer adhesive force is tested: according to the standard of GB 1720-1979 " paint film adhesion measuring method ", test hardening
The adhesive force of hardened layer in film represents wherein 100/100 represents not demoulding, 90/100 and falls off 10%.
(2) brightness enhancement layer hardness test: according to national standard method GB/T6739-1996, using measuring pencil durometer system
The hardness of the brightness enhancement layer of standby brightness enhancement film.Pencil hardness grade from soft to hard be respectively as follows: 6B, 5B, 4B, 3B, 2B, B, HB, F,
H,2H,3H,4H,5H,6H.Pencil hardness higher grade, shows that the scraping and wiping resistance performance of brightness enhancement layer is better.
(3) luminance test: taking the brightness enhancement film of an A4 size, is put into 20 cun of backlight modules according to test structure, in 24V
Voltage under light, test its brightness with luminance instrument (BH-7).
(4) glass transition temperature (Tg) is tested: being taken the brightness enhancement film of 5-10 ㎎, is used DSC Q2000 Differential Scanning Calorimetry
Analyzer, with 10 DEG C/min heating rate from 30 DEG C of -200 DEG C of progress heating scans, corresponding vitrifying transfer is tested in analysis
Temperature (Tg).Each sample test three times, calculates average value.Glass transition temperature (Tg) is that characterization brightness enhancement layer solidifies post-crosslinking
The compactness extent of network, glass transition temperature (Tg) is higher, and brightness enhancement layer cross-linked network is finer and close；Glass transition temperature (Tg)
Lower, brightness enhancement layer cross-linked network is more loose.
(5) anti-moisture absorption test: the brightness enhancement film of anti-moisture absorption is cut into 27 cun and is assembled in backlight module, then by the group
It installs complete backlight module and is placed in 200h in the environment of 65 DEG C of temperature, humidity 95%, survey (referring to high temperature and humidity) to its ring and finish
After light the backlight, seen whether warpage, after tearing machine open, brightness enhancement film be placed on marble, and is high with feeler gauge test warpage
Degree.Depth of camber is lower, illustrates that the anti-moisture absorption warpage performance of brightness enhancement film is better.
(6) regain w% is tested: ring being surveyed after the brightness enhancement film finished is taken out and is weighed after being stored at room temperature 2h with precision balance
Its weight is denoted as G1, then the brightness enhancement film is placed in 60 DEG C of baking ovens and toasts 6h, measures it with precision balance after baking
Weight is denoted as G2, regain w% calculation formula are as follows: w%=(G1- G2)/G2× 100%, w% numerical value are smaller, show that it is anti-
Moisture pick-up properties is more excellent.The test of its regain at least takes 3 groups of data, and taking its average value is final resurgence rate score.Regain is bigger,
Resistance to water soak is poorer.
Embodiment 1
The present invention provides a kind of composition, and the composition includes the first monomer, second comonomer, light-cured resin, and light draws
Send out agent and auxiliary agent.
The raw material of the composition includes following compositions: the first monomer: 39 parts by weight；Second comonomer: 10 parts by weight；Light is solid
Change resin: 50 parts by weight；Photoinitiator: 1 parts by weight；Auxiliary agent: 0.1 parts by weight；Wherein the first monomer is adjacent phenyl benzene ethyoxyl
Acrylate；Second comonomer is pentaerythritol tetraacrylate；Light-cured resin is polyoxyalkylene acrylate resin；Initiator is 2- hydroxyl
Base-aminomethyl phenyl propane -1- ketone (1173)；Auxiliary agent is WE-D5410.
Brightness enhancement film is prepared by combination of the above object, the preparation method of the brightness enhancement film includes the following steps:
(1) transparent substrate layer is made using bidirectional extending method；
(2) in the side of substrate, by one layer of resin liquid containing particle of anilox roll coating, (material of the particle is poly-
Butyl methacrylate, particle diameter distribution are 1-30 μm；The resin material is acrylic resin；The particle and resin material
Weight ratio is 0.8:1), by infrared heating solidification or ultraviolet radiation-curable, form scratch resistant layer.
(3) composition is coated on to the other side for the substrate layer that step (2) obtains, is rolled through mold and ultraviolet light
Solidification forms the brightness enhancement film with micro-structure.
Wherein, substrate layer is PET material, with a thickness of 125 μm；The micro-structure of the brightness enhancement layer is micro-prism structure, described
The prism bar height of micro-prism structure is 10 μm, and corner angle are 80 °, and prism bar is contour linear structure.
Embodiment 2
Composition as described in Example 1, the raw material of the composition include following composition: 60 parts by weight of the first monomer；
15 parts by weight of second comonomer；21 parts by weight of light-cured resin；4 parts by weight of photoinitiator；0.5 parts by weight of auxiliary agent；Wherein first is single
Body is tristane dimethyl diacrylate；Second comonomer is three (2- ethoxy) isocyanuric acid triacrylates；Photocuring
Resin is polyoxyalkylene acrylate resin；Initiator is 1- hydroxy-cyclohexyl phenyl ketone (184)；Auxiliary agent is WE-D7300.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PC material, with a thickness of 10
μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 40 μm, and corner angle are 85 °,
Prism bar is wobble structure, and high short arc is ± 10 μm.
Embodiment 3
Composition as described in Example 1, the raw material of the composition include following composition: 10 parts by weight of the first monomer；
55 parts by weight of second comonomer；27 parts by weight of light-cured resin；8 parts by weight of photoinitiator；1 parts by weight of auxiliary agent；Wherein the first monomer
For 2 (ethyoxyl) bisphenol fluorene diacrylates；Second comonomer is GU7500Z (state refine, F=15)；Light-cured resin is ring
Oxypropylene acid resin；Initiator is 2- methyl-1-(4- methyl mercapto phenyl)-2- morpholinyl-1- acetone (907)；Auxiliary agent is BYK-
333。
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PA material, with a thickness of
300μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 50 μm, and corner angle are
100 °, prism bar is contour linear type.
Embodiment 4
Composition as described in Example 1, the raw material of the composition include following composition: 38 parts by weight of the first monomer；
20 parts by weight of second comonomer；40 parts by weight of light-cured resin；2 parts by weight of photoinitiator；0.3 parts by weight of auxiliary agent；Wherein first is single
Body is 2 (ethyoxyl) bisphenol a diacrylates；Second comonomer is UT53956 (moistening Chemical Manufacture difficult to understand, F=10)；Light-cured resin
For polyester acrylate resin；Initiator is 2- hydroxy-methyl phenyl-propane -1- ketone (1173)；Auxiliary agent is WE-D7500.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PP material, with a thickness of 50
μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 15 μm, and corner angle are 85 °,
Prism bar is contour linear type.
Embodiment 5
Composition as described in Example 1, the raw material of the composition include following composition: 45 parts by weight of the first monomer；
34 parts by weight of second comonomer；15 parts by weight of light-cured resin；6 parts by weight of photoinitiator；0.7 parts by weight of auxiliary agent；Wherein first is single
Body is m-phenoxy benzyl propylene acid esters；Second comonomer is FSP73298 (moistening Chemical Manufacture difficult to understand, F=9)；Light-cured resin is
Polyester acrylate resin；Initiator is 2,4,6- trimethylbenzoy-dipheny phosphine oxide (TPO)；Auxiliary agent is BYK-
UV3535。
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PA material, with a thickness of
100μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 40 μm, and corner angle are
95 °, prism bar is wobble structure, and high short arc is ± 8 μm.
Embodiment 6
Composition as described in Example 1, the raw material of the composition include following composition: 30 parts by weight of the first monomer；
40 parts by weight of second comonomer；27 parts by weight of light-cured resin；3 parts by weight of photoinitiator；0.4 parts by weight of auxiliary agent；Wherein first is single
Body is biphenylmethanol acrylate；Second comonomer is FSP73298 (moistening Chemical Manufacture difficult to understand, F=9)；Light-cured resin is polyurethane
Acrylic resin；Initiator is 2- hydroxy-methyl phenyl-propane -1- ketone (1173)；Auxiliary agent is BYK-UV3500.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PET material, with a thickness of
188μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 20 μm, and corner angle are
90 °, prism bar is wobble structure, and high short arc is ± 4 μm.
Embodiment 7
Composition as described in Example 1, the raw material of the composition include following composition: 40 parts by weight of the first monomer；
25 parts by weight of second comonomer；30 parts by weight of light-cured resin；5 parts by weight of photoinitiator；0.5 parts by weight of auxiliary agent；Wherein first is single
Body is adjacent phenyl benzene ethoxy acrylate；Second comonomer is double pentaerythritol methacrylate (F=6)；Light-cured resin is
Polyurethane acrylic resin；Initiator is 2,4,6- trimethylbenzoy-dipheny phosphine oxide (TPO) and 2- hydroxy-methyl
The combination of phenyl-propane -1- ketone (1173), wherein 2,4,6- trimethylbenzoy-dipheny phosphine oxides (TPO) and 2- hydroxyl -
Each 2.5 parts by weight of aminomethyl phenyl propane -1- ketone (1173)；Auxiliary agent is WE-D7700.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PET material, with a thickness of
250μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 30 μm, and corner angle are
90 °, prism bar is wobble structure, and high short arc is ± 3 μm.
Embodiment 8
Composition as described in Example 1, the raw material of the composition include following composition: 60 parts by weight of the first monomer；
10 parts by weight of second comonomer；26 parts by weight of light-cured resin；4 parts by weight of photoinitiator；0.7 parts by weight of auxiliary agent；Wherein first is single
Body is 2 (ethyoxyl) bisphenol a diacrylates；Second comonomer is GU6600Y (state refine)；Light-cured resin is propylene oxide
Acid resin；Initiator is 2- methyl-1-(4- methyl mercapto phenyl)-2- morpholinyl-1- acetone (907)；Auxiliary agent is WE-D5450.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PA material, with a thickness of
150μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 25 μm, and corner angle are
100 °, prism bar is contour linear type.
Embodiment 9
Composition as described in Example 1, the raw material of the composition include following composition: 25 parts by weight of the first monomer；
45 parts by weight of second comonomer；28 parts by weight of light-cured resin；2 parts by weight of photoinitiator；0.4 parts by weight of auxiliary agent；Wherein first is single
Body is 2 (ethyoxyl) phenyl benzene ethoxy acrylates；Second comonomer is DR-U96 (Changxing Chemical Manufacture, F=10)；Photocuring
Resin is polyester acrylate resin；Initiator is 2- hydroxy-methyl phenyl-propane -1- ketone (1173)；Auxiliary agent is BYK-UV3500.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PC material, with a thickness of
250μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 25 μm, and corner angle are
85 °, prism bar is wobble structure, and high short arc is ± 3 μm.
Embodiment 10
Composition as described in Example 1, the raw material of the composition include following composition: 46 parts by weight of the first monomer；
20 parts by weight of second comonomer；30 parts by weight of light-cured resin；4 parts by weight of photoinitiator；0.6 parts by weight of auxiliary agent；Wherein first is single
Body is 2 (ethyoxyl) bisphenol fluorene diacrylates；Second comonomer is double pentaerythritol methacrylate (F=6)；Light-cured resin
For polyurethane acrylic resin；Initiator is 2- hydroxy-methyl phenyl-propane -1- ketone (1173)；Auxiliary agent is BYK-UV3500.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PET material, with a thickness of
250μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 35 μm, and corner angle are
95 °, prism bar is contour linear type.
Embodiment 11
Composition as described in Example 1, the raw material of the composition include following composition: 50 parts by weight of the first monomer；
35 parts by weight of second comonomer；10 parts by weight of light-cured resin；5 parts by weight of photoinitiator；0.8 parts by weight of auxiliary agent；Wherein first is single
Body is m-phenoxy benzyl propylene acid esters；Second comonomer is pentaerythritol triacrylate；Light-cured resin is propylene oxide
Acid resin；Initiator is 1- hydroxy-cyclohexyl phenyl ketone (184)；Auxiliary agent is BYK-333.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PC material, with a thickness of
150μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 23 μm, and corner angle are
97 °, prism bar is wobble structure, and high short arc is ± 2 μm.
Embodiment 12
Composition as described in Example 1, the raw material of the composition include following composition: 35 parts by weight of the first monomer；
15 parts by weight of second comonomer；41 parts by weight of light-cured resin；9 parts by weight of photoinitiator；0.7 parts by weight of auxiliary agent；Wherein first is single
Body is adjacent phenyl benzene ethoxy acrylate；Second comonomer is GU7200Z (state refine)；Light-cured resin is polyurethane propylene
Acid resin；Initiator is benzoin dimethylether (651)；Auxiliary agent is BYK-3535.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PET material, with a thickness of
188μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 27 μm, and corner angle are
100 °, prism bar is contour linear type.
Embodiment 13
Composition as described in Example 1, the raw material of the composition include following composition: 30 parts by weight of the first monomer；
33 parts by weight of second comonomer；34 parts by weight of light-cured resin；3 parts by weight of photoinitiator；0.6 parts by weight of auxiliary agent；Wherein first is single
Body is the combination of adjacent phenyl benzene ethoxy acrylate and 3 (ethyoxyl) bisphenol-A two (methyl) acrylate, wherein adjacent phenyl benzene
20 parts by weight of ethoxy acrylate, 3 (ethyoxyl) bisphenol-A two (methyl) acrylate, 10 parts by weight；Second comonomer is
GU6300Y (state refine)；Light-cured resin is polyoxyalkylene acrylate resin；Initiator is 2- methyl-1-(4- methyl mercapto phenyl)-
2- morpholinyl -1- acetone (907)；Auxiliary agent is BYK-3570.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PC material, with a thickness of 75
μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 29 μm, and corner angle are
103 °, prism bar is wobble structure, and high short arc is ± 5 μm.
Comparative example 1
Composition as described in Example 1, the raw material of the composition include following composition: 76 parts by weight of the first monomer；
1 parts by weight of second comonomer；21 parts by weight of light-cured resin；2 parts by weight of photoinitiator；0.3 parts by weight of auxiliary agent；Wherein the first monomer
For 2 (ethyoxyl) bisphenol a diacrylates；Second comonomer is UT53956 (moistening chemical industry difficult to understand)；Light-cured resin is polyester acrylic
Resin；Initiator is 2- hydroxy-methyl phenyl-propane -1- ketone (1173)；Auxiliary agent is WE-D7500.
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PP material, with a thickness of 50
μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 15 μm, and corner angle are 85 °,
Prism bar is contour linear type.
Comparative example 2
Composition as described in Example 1, the raw material of the composition include following composition: 5 parts by weight of the first monomer；The
Two monomers, 62 parts by weight；30 parts by weight of light-cured resin；3 parts by weight of photoinitiator；0.4 parts by weight of auxiliary agent；Wherein the first monomer
For 3 (ethyoxyl) bisphenol-A two (methyl) acrylate；Second comonomer is 3 (ethyoxyl) trimethylol propane trimethyl acrylic acid
Ester；Light-cured resin is polyurethane acrylic resin；Initiator is 2- hydroxy-methyl phenyl-propane -1- ketone (1173)；Auxiliary agent is
BYK-UV3500。
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PET material, with a thickness of
188μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 20 μm, and corner angle are
90 °, prism bar is wobble structure, and high short arc is ± 4 μm.
Comparative example 3
Composition as described in Example 1, the raw material of the composition include following composition: 30 parts by weight of the first monomer；
10 parts by weight of second comonomer；58 parts by weight of light-cured resin；2 parts by weight of photoinitiator；0.4 parts by weight of auxiliary agent；Wherein first is single
Body is 2 (ethyoxyl) phenyl benzene ethoxy acrylates；Second comonomer is DR-U96 (Changxing chemical industry)；Light-cured resin is polyethers
Acrylic resin；Initiator is 2- methyl-1-(4- methyl mercapto phenyl)-2- morpholinyl-1- acetone (907)；Auxiliary agent is BYK-
UV3500。
Brightness enhancement film is prepared with above-mentioned composition, in the preparation method of the brightness enhancement film: substrate layer is PC material, with a thickness of
250μm；The micro-structure of the brightness enhancement layer is micro-prism structure, and the prism bar height of the micro-prism structure is 25 μm, and corner angle are
85 °, prism bar is wobble structure, and high short arc is ± 3 μm.
1 embodiment of the present invention of table and the comparison of comparative example resulting composition and its optical performance test of the brightness enhancement film of preparation
The test result of the embodiment 1-13 and comparative example 1-3 shown in the table 1 it can be concluded that, composition provided by the invention
Refractive index with higher, optical brightening membrane prepared therefrom show preferable physical property and optical property.The present invention mentions
The brightness enhancement film of confession hardness with higher, brightness and glass transition temperature have preferable anti-scratch and excellent anti-moisture absorption
Warpage performance.The present invention comes the refractive index and preparation of regulatory composition by adjusting the ratio of each component in blast layer composition
Brightness enhancement layer hardness and glass transition temperature, thus be made high brightness high abrasion and anti-moisture absorption warpage performance brightness enhancement film.
Wherein, the ratio of second comonomer is bigger in composition, and degree of functionality is higher, and the brightness enhancement layer of preparation is crosslinked finer and close, hardness and glass
Glass transition temperature is higher, and regain is about low, and anti-moisture absorption warpage performance is more excellent.
Wherein, the composition refractive index with higher of the embodiment of the present invention 4-7 and 9-10 preparation, by its composition system
Standby brightness enhancement film also has higher while with higher glass transition temperature and excellent anti-moisture absorption warpage performance
Brightness and hardness, have preferable adhesion strength.The refractive index of the composition of preparation is at least 1.551, the blast of preparation
The hardness of film is at least 2H, and brightness is at least 6291cd/m2, glass transition temperature is at least 85 DEG C, 27 cut cun sample
Product ring under conditions of 65 DEG C/95%RH/200h is surveyed, and warpage maximum is no more than 0.3mm, and regain maximum is no more than 0.53%.
Particularly, the refractive index for the composition that prepared by embodiment 6 and 7 is at least 1.570, and the hardness of the brightness enhancement film of preparation is at least 2H,
Brightness is at least 6515cd/m2, glass transition temperature is at least 95 DEG C, and 27 cut cun sample is in 65 DEG C/95%RH/
Ring is surveyed under conditions of 200h, and warpage maximum is no more than 0.15mm, and regain maximum is no more than 0.48%.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
The equivalent changes and modifications that content is done according to the present invention are encompassed by the scope of the patents of the invention.
Claims (10)
1. a kind of composition, which is characterized in that the composition includes the first monomer, and second comonomer, light-cured resin and light draw
Send out agent.
2. composition according to claim 1, which is characterized in that the raw material of the composition includes following compositions: first
Monomer: 10-60 parts by weight；Second comonomer: 10-55 parts by weight；Light-cured resin: 10-50 parts by weight；Photoinitiator: 1-9 weight
Part；Auxiliary agent: 0.1-1 parts by weight；The total weight parts of wherein the first monomer, second comonomer, light-cured resin and photoinitiator are 100
Part.
3. composition according to claim 1, which is characterized in that first monomer is single official's acrylic monomers (F=1)
Or two official's acrylic monomers (F=2), the second comonomer are more official's acrylic monomers (F >=3).
4. composition according to claim 1, which is characterized in that first monomer is single official's acrylic monomers (F=
1), the second comonomer is in six official's acrylate (F=6), nine official's acrylate (F=9) or ten official's acrylate (F=10)
One kind or at least two combination.
5. composition according to claim 1 or 2, which is characterized in that the refractive index of the composition is 1.530-
1.585。
6. composition according to claim 2, which is characterized in that the raw material of the composition includes following compositions: first
Monomer: 25-46 parts by weight；Second comonomer: 20-45 parts by weight；Light-cured resin: 15-40 parts by weight；Photoinitiator: 2-6 weight
Part；Auxiliary agent: 0.3-0.7 parts by weight；The total weight parts of wherein the first monomer, second comonomer, light-cured resin and photoinitiator are
100 parts.
7. a kind of brightness enhancement film, which is characterized in that the brightness enhancement film includes brightness enhancement layer, substrate layer and scratch resistant layer, the brightness enhancement layer
It is formed after the solidification of the composition as described in one of claim 1-6.
8. brightness enhancement film according to claim 7, spy are, the brightness enhancement layer includes micro-structure.
9. brightness enhancement film according to claim 7 or 8, which is characterized in that the glass transition temperature of the brightness enhancement layer is
65-155℃。
10. a kind of application according to described in any item brightness enhancement films among claim 7-9, which is characterized in that the brightness enhancement film
Applied in the backlight module of liquid crystal display.
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