CN102749665A - Method for producing optical film, polaroid and image display device - Google Patents
Method for producing optical film, polaroid and image display device Download PDFInfo
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- CN102749665A CN102749665A CN2012101113544A CN201210111354A CN102749665A CN 102749665 A CN102749665 A CN 102749665A CN 2012101113544 A CN2012101113544 A CN 2012101113544A CN 201210111354 A CN201210111354 A CN 201210111354A CN 102749665 A CN102749665 A CN 102749665A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/24—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length
- B29C41/28—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of indefinite length by depositing flowable material on an endless belt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/34—Component parts, details or accessories; Auxiliary operations
- B29C41/52—Measuring, controlling or regulating
Abstract
The present invention relates to a method for producing an optical film, a polaroid and an image display device. The method for producing the optical film comprises: a coating process for coating a coating liquid containing active energy ray cured resin on base material films (11) which are conveyed continuously, so as to form a coating layer; and a curing process for irradiating active energy rays onto the coating layer from a side of the base material films (11) in the state of pushing and abutting a surface of a mould to a surface of the coating layer, wherein, in the coating process, the coating liquid is coated in the way that the film thickness of an initiating area of the coating layer in a front area of the coating layer is under 4 [mu]m after the curing process. According to the present invention, resin residue can be prevented from occurring on the mould, and the optical films can be produced continuously and efficiently without occurrence of adverse conditions such as defects.
Description
Technical field
The present invention relates on base material film, be coated with the manufacturing approach that contains the coating fluid of active energy ray-curable resin and make the blooming of its curing.And, the invention still further relates to the polaroid and the image display device that have used this blooming.
Background technology
Have the blooming that the resin bed of regulation optical function forms through coating on base material, for example be used for various image display devices such as liquid crystal indicator as antiglare film, optical diffusion film, hard coat film etc.
Generally, the above-mentioned resin bed that blooming possessed is to contain the coating fluid of active energy ray-curable resin and to the coating layer irradiation active energy beam that obtains it is solidified to form through coating on base material film.According to the needed optical characteristics of blooming,, also have the mold with regulation surface configuration is pushed against painting layer surface and under this state, makes the situation of its curing in order to give required form to resin layer surface.
For example; Following method is disclosed in JP2007-76089-A: on base material film, be coated with uv curing resin; Make resin-coated driving fit irradiation ultraviolet radiation under the state of the concavo-convex forming roll (knurling rolls) that synchronously rotates with base material film; Make resin solidification, then, peel off the laminate of cured resin and base material film from concavo-convex forming roll.
Shown in the method for above-mentioned JP2007-76089-A record; When pushing against painting layer surface through the mold that knurling rolls are such, coating layer being solidified makes under the situation of blooming; Thickness at the such coating layer of the preceding head region (the front ends zone of coating layer) of the film throughput direction of coating layer sharply becomes big place; When peeling off the gained blooming, sometimes at the resin of the residual curing of mould surface, promptly the situation of so-called " resin residue " takes place from mold.On rectangular base material film, form continuously in the continuous production of blooming of resin bed, resin residue makes the blooming that obtains produce continuous defective (resin is attached to the surface configuration of blooming surface, blooming or the defective of optical characteristics etc.) possibly.And, when resin residue takes place, its cleaning removed to make and make efficient and reduce greatly.
On the other hand, as the method that prevents resin residue, though considered in the coating fluid that forms coating layer, to add release agent or, added physical strength, optical characteristics that release agent damages blooming possibly in advance at mould surface coating release agent.
The present invention is in view of the above problems and accomplishes, and the generation that can prevent resin residue is provided and the method for unfavorable condition ground continuous high-efficient ground manufacturing blooming such as defective can not take place.
The inventor has carried out research with keen determination; The result finds; Form coating layer if satisfy the mode of specified conditions with the thickness outward appearance (profile) of the coating layer in the preceding head region of base material film throughput direction (front ends zone), then can prevent the resin residue when mold is peeled off blooming effectively.
Summary of the invention
That is, the present invention comprises following content.
[1] a kind of manufacturing approach of blooming; Comprise painting process and curing process; Painting process is on the base material film of carrying continuously, to be coated with the operation that contains the coating fluid of active energy ray-curable resin and form coating layer; Curing process is from the operation of base material film side to coating layer irradiation active energy beam under the state on the surface that pushes against the surface of mold coating layer; In painting process, be coated with coating fluid with the mode of the thickness less than 4 μ m of the sintering of the coating layer in the preceding head region of coating layer (Ga り on the upright Chi) behind curing process.
[2] according to [1] described method; Wherein, The coating of the coating fluid in the above-mentioned painting process through with curing process after the thickness of coating layer preestablish the regulation thickness relatively and carry out; In painting process, be coated with coating fluid with front to the mode that the thickness that reaches coating layer between the above-mentioned predefined regulation thickness continues to increase from coating layer.
[3] according to [1] or [2] described method; Wherein, When will be made as apart from the distance along the throughput direction of base material film of the end portion of the sintering of said coating layer L (mm), with the thickness of the coating layer behind the curing process in the distance L be made as H (L) (mm), average gradient that the thickness in the distance L is increased is made as Δ H (L) and when representing with following formula (1); In painting process, be that mode below 0.0003 is coated with coating fluid with the Δ H (10) of L=10.
ΔH(L)＝{H(L)-H(0)}/L (1)
[4] according to each described method in [1]～[3], wherein, the coating of the said coating fluid in the said painting process is carried out through using mould to be coated with the spue pressure of the coating fluid on the base material film of machine and control.
[5] a kind of polaroid, the blooming that possesses light polarizing film and make, said blooming through each described method in [1]～[4] with base material film side and the opposed mode lamination of this light polarizing film on this light polarizing film.
[6] a kind of image display device possesses [5] described polaroid and image-displaying member, and wherein, polaroid is that the mode of image-displaying member side is configured on the image-displaying member with its light polarizing film.
According to the method for the invention, can prevent resin residue when mold is peeled off blooming effectively.Thus, on rectangular base material film, form continuously in the continuous production of blooming of resin bed, blooming is made on continuous high-efficient ground with can not producing continuous defective (in the defective of surface attachment resin, surface configuration or optical characteristics etc.).And, do not remove cull owing to need not clean, manufacturing efficient is improved greatly.The blooming that obtains according to the present invention can be fit to be applied in the image display devices such as polaroid, liquid crystal indicator.
Description of drawings
[Fig. 1] is the synoptic diagram of a preference of the manufacturing installation that uses in manufacturing approach and this method of blooming of the present invention.
[Fig. 2] is the figure of Thickness Variation that the preceding head region of the curing resin layer that blooming had that obtains among the embodiment 1 is shown.
[Fig. 3] is the figure of Thickness Variation that the preceding head region of the curing resin layer that blooming had that obtains among the embodiment 2 is shown.
[Fig. 4] is the figure of Thickness Variation that the preceding head region of the curing resin layer that blooming had that obtains among the embodiment 3 is shown.
[Fig. 5] is the figure of Thickness Variation that the preceding head region of the curing resin layer that blooming had that obtains in the comparative example 1 is shown.
[Fig. 6] is the figure of Thickness Variation that the preceding head region of the curing resin layer that blooming had that obtains in the comparative example 2 is shown.
[Fig. 7] is the figure of Thickness Variation that the preceding head region of the curing resin layer that blooming had that obtains in the comparative example 3 is shown.
Symbol description
11 base material films
13,16 mip rolls
14 molds
15 active energy beam irradiation units
31 films roll out device
32 apparatus for coating
33 drying ovens
34 film roll-up device
Embodiment
< manufacturing approach of blooming >
The manufacturing approach of blooming of the present invention comprises following operation:
[1] painting process, coating contains the coating fluid of active energy ray-curable resin on the base material film of carrying continuously, forms coating layer; And
[2] curing process pushes against on the surface with mold under the state on surface of coating layer, to said coating layer irradiation active energy beam, coating layer is solidified from the base material film side.
Below, each operation is at length explained with reference to the accompanying drawing limit in the limit.Fig. 1 is the synoptic diagram of a preference of the manufacturing installation that uses in manufacturing approach and this method of blooming of the present invention.Arrow among the figure is represented the sense of rotation of the throughput direction or the roller of film.
[1] painting process
In this operation, coating contains the coating fluid of active energy ray-curable resin on the base material film of carrying continuously, forms coating layer.Painting process is for example as shown in Figure 1; Can carry out in the following manner; That is, roll out base material film 11 continuously from being installed to the original membrane (former anti-) (article of rolling of rectangular base material film) that film rolls out device 31, and use apparatus for coating 32 is coated with coating fluid on base material film 11.
(base material film)
Base material film 11 for example can use glass, plastic foil etc. so long as the material of light transmission gets final product.As plastic foil, the transparency, physical strength with appropriateness get final product.Particularly, polyolefin-based resins such as polyester based resin, tygon, polypropylene such as TAC acetate fibers such as (triacetyl celluloses) prime system resin, acrylic resin, polycarbonate-based resin, polyethylene terephthalate etc. for example.The thickness of base material film 11 for example is 10～500 μ m, considers from the film equal angles of blooming, and 10～300 μ m preferably, being more preferably is 20～300 μ m.
With the coating of improvement coating fluid or the stickability of improvement and coating layer is purpose, also can implement various surface treatments to the surface (coating layer side surface) of base material film 11.As surface treatment, can give an example is Corona discharge Treatment, glow discharge processing, acid surfaces processing, alkali surface treatment, ultraviolet treatment with irradiation etc.In addition, for example also can on base material film 11, form other layers such as undercoat, and on this other layer, be coated with coating fluid.
And, under the situation about using on the light polarizing film of after blooming is adhered to, stating,, preferably utilize various surface treatments in advance hydrophilicity-imparting treatment to be carried out on the surface (with the surface of coating layer opposition side) of base material film in order to improve the stickability of base material film and light polarizing film.This surface treatment also can be carried out after the manufacturing of blooming.
(coating fluid)
Coating fluid contains the active energy ray-curable resin, also contains Photoepolymerizationinitiater initiater (radical polymerization initiator) usually.As required, also can contain other compositions such as light transmission particulate, organic solvent equal solvent, levelling agent, spreading agent, antistatic agent, anti fouling agent, surfactant.
(1) active energy ray-curable resin
The active energy ray-curable resin can be uv curing resin, electronic beam curing property resin etc., for example, can preferably use the material that contains multifunctional (methyl) acrylate compounds.Multifunctional (methyl) acrylate compounds is meant to have the compound of at least 2 (methyl) acryloxies in the molecule.Object lesson as multifunctional (methyl) acrylate compounds; For example, can give an example: polyvalent alcohol and (methyl) acrylic acid ester compounds, carbamate (methyl) acrylate compounds, polyester (methyl) acrylate compounds, epoxy (methyl) acrylate compounds etc. contain the multifunctional polymerization property compound of (methyl) acryloyl group more than 2 etc.
As polyvalent alcohol; For example; Can give an example: monoethylene glycol, diethylene glycol, triethylene glycol, TEG, polyglycol, propylene glycol (propylene glycol), DPG, tripropylene glycol, four propylene glycol, polypropylene glycol, propylene glycol (propanediol), butylene glycol, pentanediol, hexanediol, neopentyl glycol, 2-ethyl-1; 3-hexanediol, 2, dibasic alcohol such as 2 '-thiodiethanol, 1,4 cyclohexane dimethanol; The alcohol that ternarys such as trimethylolpropane, glycerine, pentaerythrite, two glycerine, dipentaerythritol, two (trihydroxy methyl) propane are above.
As polyvalent alcohol and (methyl) acrylic acid ester compounds; Specifically can give an example: ethylene glycol bisthioglycolate (methyl) acrylic ester, diethylene glycol two (methyl) acrylic ester, 1; 6-hexanediol two (methyl) acrylic ester, neopentyl glycol two (methyl) acrylic ester, trimethylolpropane tris (methyl) acrylic ester, trimethylolethane trimethacrylate (methyl) acrylic ester, tetramethylol methane three (methyl) acrylic ester, 1,6-hexanediol two (methyl) acrylic ester, tetramethylol methane four (methyl) acrylic ester, three (methyl) acrylic acid, five polyglycerol esters, pentaerythrite three (methyl) acrylic ester, pentaerythrite four (methyl) acrylic ester, three (methyl) acrylic acid glyceride, dipentaerythritol three (methyl) acrylic ester, dipentaerythritol four (methyl) acrylic ester, dipentaerythritol five (methyl) acrylic ester, dipentaerythritol six (methyl) acrylic ester etc.
As carbamate (methyl) acrylate compounds, can give an example isocyanates that in 1 molecule, has a plurality of NCOs and urethane reactant with (methyl) acrylic acid derivative of hydroxyl.As the organic isocyanate that in 1 molecule, has a plurality of NCOs; Can give an example: hexamethylene diisocyanate, IPDI, toluene diisocyanate, naphthalene isocyanates, methyl diphenylene diisocyanate, XDI, dicyclohexyl methyl hydride diisocyanate etc. have the organic isocyanate of 2 NCOs in 1 molecule, and these organic isocyanates are carried out isocyanurate-modified, addition modification, biuret modified and organic isocyanate that in 1 molecule, has 3 NCOs of obtaining etc.As (methyl) acrylic acid derivative, can give an example: (methyl) acrylic acid 2-hydroxyl ethyl ester, (methyl) acrylic acid 2-hydroxypropyl acrylate, (methyl) acrylic acid 4-hydroxy butyl ester, (methyl) acrylic acid 2-hydroxy butyl ester, (methyl) acrylic acid 2-hydroxyl-3-phenoxy group propyl ester, pentaerythritol triacrylate etc. with hydroxyl.
As polyester (methyl) acrylate compounds, polyester (methyl) acrylic ester that the hydroxyl polyester is obtained with the reaction of (methyl) acrylic acid.The preferred hydroxyl polyester that uses is meant the hydroxyl polyester that the esterification through polyvalent alcohol and carboxylic acid, the compound with a plurality of carboxyls and/or its acid anhydride obtains.As polyvalent alcohol, the material identical of can giving an example with aforesaid compound.And, except that polyvalent alcohol, the bisphenol-A as phenols etc. of can also giving an example.As carboxylic acid, can give an example: formic acid, acetate, butyl carboxylic acid, benzoic acid etc.As the compound with a plurality of carboxyls and/or its acid anhydride, can give an example: maleic acid, phthalic acid, fumaric acid, itaconic acid, hexane diacid, terephthalic acid (TPA), maleic anhydride, phthalic anhydride, trimellitic acid, cyclohexane dicarboxylic acid acid anhydride etc.
In above so multifunctional (methyl) acrylate compounds; Consider ester compounds such as preferred hexanediol two (methyl) acrylic ester, neopentyl glycol two (methyl) acrylic ester, diethylene glycol two (methyl) acrylic ester, tripropylene glycol two (methyl) acrylic ester, trimethylolpropane tris (methyl) acrylic ester, pentaerythrite three (methyl) acrylic ester, dipentaerythritol six (methyl) acrylic ester from the intensity that improves solidfied material, the angle that obtains easy property; The addition product of hexamethylene diisocyanate and (methyl) acrylic acid 2-hydroxyl ethyl ester; The addition product of IPDI and (methyl) acrylic acid 2-hydroxyl ethyl ester; The addition product of toluene diisocyanate and (methyl) acrylic acid 2-hydroxyl ethyl ester; The addition product of addition modification IPDI and (methyl) acrylic acid 2-hydroxyl ethyl ester; And the addition product of biuret modified IPDI and (methyl) acrylic acid 2-hydroxyl ethyl ester.And these multifunctional (methyl) acrylate compounds can be distinguished independent use, also can also use with other more than one.
The active energy ray-curable resin can also contain simple function (methyl) acrylate compounds except that above-mentioned multifunctional (methyl) the acrylate compounds.As simple function (methyl) acrylate compounds, can give an example: (methyl) esters of acrylic acids such as (methyl) methyl acrylate, (methyl) ethyl acrylate, (methyl) butyl acrylate, (methyl) isobutyl acrylate, (methyl) tert-butyl acrylate, (methyl) acrylic acid 2-hydroxyl ethyl ester, (methyl) acrylic acid 2-hydroxypropyl acrylate, (methyl) acrylic acid hydroxy butyl ester, (methyl) acrylic acid 2-hydroxy butyl ester, (methyl) acrylic acid 2-hydroxyl-3-phenoxy group propyl ester, (methyl) acrylic ester ethylene oxidic ester, acryloyl morpholine, N-vinyl pyrrolidone, (methyl) acrylic acid tetrahydrofuran ester, (methyl) cyclohexyl acrylate, (methyl) 2-EHA, (methyl) IBOA, acetyl group (methyl) acrylic ester, (methyl) benzyl acrylate, (methyl) acrylic acid 2-ethoxy ethyl ester, (methyl) acrylic acid 3-methoxyl butyl ester, ethyl carbitol (methyl) acrylic ester, phenoxy group (methyl) acrylic ester, oxirane modification phenoxy group (methyl) acrylic ester, epoxypropane (methyl) acrylic ester, nonyl phenol (methyl) acrylic ester, oxirane modification (methyl) acrylic ester, epoxy pronane modification nonyl phenol (methyl) acrylic ester, methoxyl diethylene glycol (methyl) acrylic ester, 2-(methyl) acrylyl oxy-ethyl-2-hydroxypropyl phthalic ester, dimethylaminoethyl (methyl) acrylic ester, methoxyl triethylene glycol (methyl) acrylic ester.These compounds can be distinguished independent use, and are also can be with other two or more and use.
In addition, the active energy ray-curable resin can also contain polyreactive oligomers.Thereby through making it contain the hardness that polyreactive oligomers can be adjusted solidfied material.Polyreactive oligomers for example can be that above-mentioned multifunctional (methyl) acrylate compounds is a polyvalent alcohol and such oligomer such as the dimer of (methyl) acrylic acid ester compounds, carbamate (methyl) acrylate compounds, polyester (methyl) acrylate compounds or epoxy (methyl) acrylic ester etc., tripolymer.
As other polyreactive oligomers, carbamate (methyl) acrylate oligomer that can give an example and obtain through polyisocyanate that has at least 2 NCOs in the molecule and reaction with polyvalent alcohol of at least 1 (methyl) acryloxy.As polyisocyanate; The polymkeric substance of hexamethylene diisocyanate, IPDI, toluene diisocyanate, methyl diphenylene diisocyanate, XDI etc. of can giving an example; As polyvalent alcohol, be hydroxyl (methyl) acrylic ester that obtains through polyvalent alcohol and (methyl) acrylic acid esterification, as polyvalent alcohol with at least 1 (methyl) acryloxy; Can give an example 1; 3-butylene glycol, 1,4-butylene glycol, 1,6-hexanediol, diethylene glycol, triethylene glycol, neopentyl glycol, polyglycol, polypropylene glycol, trimethylolpropane, glycerine, pentaerythrite, dipentaerythritol etc.The part of the alcoholic extract hydroxyl group that this polyvalent alcohol with at least 1 (methyl) acryloxy is a polyvalent alcohol and (methyl) acrylic acid generation esterification and in molecule the compound of residual alcoholic extract hydroxyl group.
And, as other the example of polyreactive oligomers, polyester (methyl) acrylate oligomer that compound and/or its acid anhydride and the reaction with polyvalent alcohol of at least 1 (methyl) acryloxy through having a plurality of carboxyls of can giving an example obtains.As the compound with a plurality of carboxyls and/or its acid anhydride, the identical material of putting down in writing in polyester (methyl) acrylic ester with above-mentioned multifunctional (methyl) acrylate compounds of can giving an example of material.And, as polyvalent alcohol with at least 1 (methyl) acryloxy, can give an example with above-mentioned carbamate (methyl) acrylate oligomer in the identical material of material put down in writing.
Except that above polyreactive oligomers, as the example of carbamate (methyl) acrylate oligomer, can also give an example the hydroxyl reaction that makes isocyanates and hydroxyl polyester, hydroxyl polyethers or hydroxyl (methyl) acrylic ester and compound.The preferred hydroxyl polyester that uses is through polyvalent alcohol and carboxylic acid, has the compound of a plurality of carboxyls/or hydroxyl polyester of obtaining of the esterification of its acid anhydride.As polyvalent alcohol, carboxylic acid, have the compound of a plurality of carboxyls/or its acid anhydride, the identical material of putting down in writing in polyester (methyl) acrylate compounds with multifunctional (methyl) acrylate compounds of can giving an example respectively of material.The preferred hydroxyl polyethers that uses is through to the polyvalent alcohol addition hydroxyl polyethers that alkylene oxide and/or 6-caprolactone get more than a kind or 2 kinds.Polyvalent alcohol can be with above-mentioned hydroxyl polyester in the identical material of material that can use.As hydroxyl (methyl) acrylic ester of preferred use, the identical material of putting down in writing in carbamate (methyl) acrylate oligomer with polyreactive oligomers of can giving an example of material.As isocyanates, has the compound of 1 above NCO in the preferred molecule, binary isocyanate compounds such as preferred especially toluene diisocyanate, hexamethylene diisocyanate, IPDI.
These polyreactive oligomerses can be distinguished independent use, also can also use more than a kind with other.
(2) Photoepolymerizationinitiater initiater
As Photoepolymerizationinitiater initiater, for example can use acetophenone is that Photoepolymerizationinitiater initiater, benzoin are that Photoepolymerizationinitiater initiater, benzophenone series Photoepolymerizationinitiater initiater, thioxanthones are that Photoepolymerizationinitiater initiater, triazine are that Photoepolymerizationinitiater initiater 、 oxadiazole is a Photoepolymerizationinitiater initiater etc.And, as Photoepolymerizationinitiater initiater, for example can use 2; 4,6-trimethylbenzoyl diphenyl phosphine oxide, 2,2 '-two (Chloro-O-Phenyl)-4; 4 ', 5,5 '-tetraphenyl-1; 2 '-bisglyoxaline, 10-butyl-2-chloro-acridine ketone, 2-EAQ, benzil, 9,10-phenanthrenequione, camphorquinone, methyl benzoylformate, two cyclopentadiene titanium compounds etc.The consumption of Photoepolymerizationinitiater initiater is generally 0.5～20 weight portion with respect to active energy ray-curable resin 100 weight portions, is preferably 1～5 weight portion.
(3) light transmission particulate
As the light transmission particulate; Not special the qualification; For example can use the organic fine particles that forms by acrylic resin, melamine resin, tygon, polystyrene, organic siliconresin, acrylic acid-styrol copolymer etc., inorganic particles that forms by lime carbonate, silicon dioxide, aluminium oxide, barium carbonate, barium sulphate, titanium dioxide, glass etc. etc.And, also can use hollow ball, the hollow pearl of organic polymer.These light transmission particulates can use a kind separately, also can mix use more than 2 kinds.The shape of light transmission particulate can be spherical, flat, tabular, needle-like, amorphous etc. any.
The not special restriction of the particle diameter of light transmission particulate, refractive index, but when blooming during as optical diffusion film, antiglare film, from presenting the angle consideration of internal haze effectively, preferable particle size is in the scope of 0.5 μ m～20 μ m.And based on same reason, the difference of the refractive index of the active energy ray-curable resin after the curing and the refractive index of light transmission particulate is preferably in 0.04～0.15 scope.The content of light transmission particulate is generally 3～60 weight portions with respect to active energy ray-curable resin 100 weight portions, is preferably 5～50 weight portions.During with respect to active energy ray-curable resin 100 weight portion less thaies 3 weight portions, can not fully give light diffusing or anti-dazzle property at the content of light transmission particulate.On the other hand, if surpass 60 weight portions, damage the transparency of blooming sometimes, and anti-dazzle property, light diffusing become too high, the trend that has contrast to reduce.
In addition, under the situation of using the light transmission particulate, for optical characteristics and the surface configuration that makes blooming is even, the dispersion of the light transmission particulate in the preferred coating fluid is that isotropy is disperseed.
(4) solvent
Coating fluid can contain the organic solvent equal solvent.As organic solvent, can consider that viscosity etc. selects to use from following solvent: aliphatic hydrocarbons such as hexane, cyclohexane, octane for example; Aromatic hydrocarbon such as toluene, xylene; Alcohols such as ethanol, 1-propyl alcohol, isopropyl alcohol, 1-butanols, cyclohexanol; Ketones such as MEK, methyl isobutyl ketone, cyclohexanone; Ester classes such as ethyl acetate, butyl acetate, isobutyl acetate; Glycol ethers such as glycol monoethyl ether, ethylene glycol monoethyl ether, diethylene glycol monoethyl ether, propylene glycol monomethyl ether, dihydroxypropane single-ether; Esterification such as ethylene glycol monomethyl ether acetate, propylene glycol methyl ether acetate glycol ethers; Cellosolve classes such as 2-methyl cellosolve, cellosolvo, butoxy ethanol; Carbitol classes such as 2-(2-methoxy ethoxy) ethanol, 2-(2-ethoxy ethoxy) ethanol, 2-(2-butoxy ethoxy) ethanol etc.These solvents can be distinguished independent use, also can mix use more than a kind with other as required.After the coating, need make above-mentioned organic solvent evaporation.Therefore, preferred boiling point is in 60 ℃～160 ℃ scopes.And the saturated vapor pressure in the time of preferred 20 ℃ is in 0.1kPa～20kPa scope.
(coating of coating fluid)
As stated; On base material film 11, forming coating layer can carry out through following operation; That is, roll out base material film 11 continuously from being installed to the original membrane (article of rolling of rectangular base material film) that film rolls out device 31, and use apparatus for coating 32 on base material film 11, to be coated with coating fluid.The coating of coating fluid for example can be used intaglio plate rubbing method, miniature intaglio plate rubbing method, scraper rubbing method, scraper rubbing method, airblade coating method, kiss is coated with method, mould Tu Fa waits and carries out.
Usually preestablish the thickness (average film thickness) of the coating layer after the curing, adjustment coating weight equilateral coating coating fluid in limit is to obtain the regulation thickness that this configures.At this moment, after behind the curing process stated, satisfy following (i), preferably also satisfy mode (ii) following and/or that (iii), more preferably all satisfy following (i)～(iii) and be coated with coating fluid according to the thickness outward appearance of coating layer.
(i) mode with the sintering of the coating layer in the preceding head region (front ends zone) of the coating layer of the base material film throughput direction film thickness gauge less than 4 μ m after with curing process is coated with;
(ii) be coated with front (coating beginning end) to the mode that the thickness that reaches coating layer between the above-mentioned regulation thickness that configures continues to increase, promptly do not produce the part of thickness reduction from coating layer;
(iii) when will be made as apart from the distance along the throughput direction of base material film of the end portion of the sintering of coating layer L (mm), with the thickness of the coating layer behind the curing process in the distance L be made as H (L) (mm), average gradient that the thickness in the distance L is increased is made as Δ H (L) and when representing with following formula (1), is that mode below 0.0003 is coated with the Δ H (L) of L=10.
ΔH(L)＝{H(L)-H(0)}/L (1)
Here; " sintering " of coating layer is meant; From the front of coating layer (coating beginning end) when the throughput direction of base material film is observed the Thickness Variation after coating layer solidifies; Zone till the position of initial flex point takes place in the Thickness Variation curve from the front of coating layer to coating layer, and " sintering of coating layer with curing process after film thickness gauge less than 4 μ m " in above-mentioned (i) is meant the maximum less than 4 μ m of the thickness after the coating layer in the above-mentioned zone (sintering) solidifies.And, above-mentioned (iii) in " the end portion of the sintering of coating layer " be meant that the position of initial flex point takes place the Thickness Variation curve of above-mentioned coating layer.
The mode that satisfies above-mentioned (i) through the front part with coating layer is carried out the coating of coating fluid, promptly the front part through coating layer does not have greatly and carries out the coating of coating fluid to the mode of the thickness more than the setting, can prevent the resin residue when mold is peeled off blooming effectively.If the sintering of the coating layer of head region is the thickness coating layer jumpy more than the 4 μ m at the thickness behind the curing process before being formed on, then " resin wear " of the coating layer after this preceding head region becomes the curing of resin residue reason easily.The film thickness gauge of the sintering of coating layer after with curing process is preferably below the 3.5 μ m.
And, through carrying out the coating of coating fluid, can prevent resin residue more effectively also to satisfy mode (ii) above-mentioned and/or (iii).Do not satisfy (ii) above-mentioned; Then the Thickness Variation curve of the thickness in the preceding head region of coating layer produces maximum value (liquid of so-called coating fluid accumulates), does not satisfy (iii), then in the back of the sintering end portion that is close to coating layer; The thickness increment rate is too high, under the above situation resin residue can take place.
The not special restriction of method of the thickness outward appearance of regulating coating layer with above-mentioned (i) that satisfy and mode (ii)～(iii); For example can enumerate: when using the intaglio plate spreader as apparatus for coating 32; Control stretching is regulated the method for the quantity delivered of coating fluid than (draw ratio, the ratio of the rotational speed of gravure roll and the transporting velocity of base material film); When using Scraper applicator as apparatus for coating 32, web (ゥ ェ Block) go up that setting can be adjusted and web between the scraper in gap, and utilize this scraper to regulate the method for thickness; When using mould to be coated with machine, through the adjusting quantity delivered that the pressure of coating fluid of base material film regulates coating fluid that spues as apparatus for coating 32; When using other various apparatus for coating, regulate the method etc. of the quantity delivered of the coating fluid of being supplied with through its apparatus for coating.
In addition, contain at coating fluid under the situation of solvent, preferably after be provided with before the curing process stated and make solvent evaporation and carry out dry drying process.Dry example as shown in Figure 1 for example can carry out through the base material film 11 that possesses coating layer is passed in the drying oven 33.Baking temperature is suitably selected according to the kind of employed solvent, base material film.Though be generally 20 ℃～120 ℃ scope, not special restriction.And, when drying oven when being a plurality of, also can change temperature to each drying oven.
[2] curing process
This operation is to push against under the state on surface of coating layer on the surface of the mold that will have the regulation surface configuration; From the base material film side coating layer is shone active energy beam; The coating layer that in above-mentioned painting process, forms is solidified, thereby on base material film, form the operation of the resin bed that solidifies.Through this operation, coating layer is cured, and the surface configuration of mold is transferred to painting layer surface.
This operation is for example as shown in Figure 1; Carry out through following mode: use mip rolls (nip roll) 13 equipressures to attach together and put; Push against roll forming mold 14 painting layer surface of the base material film 11 that experienced painting process and the laminate of coating layer; And under this state, use active energy beam irradiation unit 15, from base material film 11 sides irradiation active energy beam, coating layer is solidified.The use of mip rolls is effective preventing that bubble from sneaking between coating layer and the mold.The active energy beam irradiation unit can use one or more.
After the active energy beam irradiation, laminate is that fulcrum is peeled off from mold 14 with the mip rolls 16 of outlet side.The blooming that the resin bed by base material film and curing that obtains constitutes is rolled by film roll-up device 34 usually.At this moment,, also can be situated between by adhesive phase with releasable in order to protect resin bed, in resin layer surface attaching by diaphragm that polyethylene terephthalate, tygon etc. form on one side roll on one side.In addition, the shape of employed mold is not limited to roll shape.
After peeling off from mold, the active energy beam irradiation that can append.In addition, also can be after the base material film that will be formed with uncured coating layer to be peeled off from mold, the irradiation active energy beam solidifies it, to replace carrying out the active energy beam irradiation under the state of mold being pressed into.
As active energy beam; Can be according to type suitably selection from ultraviolet ray, electron beam, near ultraviolet ray, visible light, near infrared ray, infrared ray, X ray etc. of the active energy ray-curable resin that contains in the coating fluid; But wherein preferred ultraviolet ray and electron beam; Consider preferred especially ultraviolet ray from handling easy and obtaining high-octane angle.
As ultraviolet light source, for example can use low pressure mercury lamp, medium pressure mercury lamp, high-pressure sodium lamp, ultrahigh pressure mercury lamp, carbon arc lamp, metal halide lamp, xenon lamp etc.And, also can use ArF excimer laser, KrF excimer laser, Excimer lamp or synchrotron radiation light etc.Wherein, preferably use ultrahigh pressure mercury lamp, high-pressure sodium lamp, low pressure mercury lamp, xenon arc lamp, metal halide lamp.
And; As electron beam, the electron beam that can give an example and emit with 50～1000keV, preferred 100～300keV energy by various electron-beam accelerators such as Cockcroft, John Douglas Te Waerdun type, model De Graff type, resonance transformer type, insulating core transformer type, linear pattern, high-frequency and high-voltage type, high-frequency type.
When active energy beam was ultraviolet ray, the accumulation light quantity of ultraviolet UVA was preferably 40mJ/cm
2More than, be more preferably 70mJ/cm
2～1800mJ/cm
2At accumulation deficiency in light quantity 40mJ/cm
2The time, the curing of coating layer is insufficient, has the hardness step-down of the resin bed that obtains, uncured resin to be attached to guide roller etc. and becomes the trend of operation pollution cause.And, surpass 2000mJ/cm in the accumulation light quantity
2The time, become the reason of base material film constricted fold sometimes because of the heat that radiates from ultraviolet lamp.
The mold that uses in this operation is the mold that is used for the resin layer surface that on base material film, forms is given intended shape, has the surface configuration that the transfer print structure by this intended shape constitutes.On the surface of coating layer, the limit pushes against the painting layer surface limit with this surface configuration solidifies coating layer, thereby can the surface configuration of mold be transferred to resin layer surface.As mold, can give an example, have the mold (for example mirror roller) on the surface that constitutes by minute surface and have the mold (for example knurling rolls) of convex-concave surface.
Have at mold under the situation of convex-concave surface; The pattern of concaveconvex shape can be the pattern of rule; Also can be random pattern or the pseudo-random patterns that has been paved with more than one random patterns of specific dimensions; But prevent that from the catoptrical interference that utilizes surface configuration to cause reflection image is colored as irised angle and considers, preferably random pattern or pseudo-random patterns.
The not special restriction of the outer shape of mold can be a tabular, also can be roller cylindric or cylindraceous, but consider from the production continuity, preferably mold cylindric or cylindraceous such as mirror roller, knurling rolls.At this moment, form the surface configuration of regulation in the side of cylindric or mold cylindraceous.
The not special restriction of the material of the base material of mold can suitably be selected from metal, glass, carbon, resin or their complex, but consider preferable alloy from the processability equal angles.As the metal material that be fit to use, consider the alloy that to enumerate aluminium, iron or be the main body with aluminium or iron etc. from the viewpoint of cost.
As the method that obtains mold, for example, the following method of can giving an example: grind base material, and after implementing sandblast processing, implement the method (JP2006-53371-A) of chemical nickel plating; After base material is carried out copper facing or nickel plating, grind, and after implementing sandblast processing, implement the method (JP2007-187952-A) of chromium plating; After having implemented copper facing or nickel plating, grind, and after implementing sandblast processing, implement etching work procedure or copper facing operation, then implement the method (JP2007-237541-A) of chromium plating; After copper facing or nickel plating are carried out in the surface of base material, grind, and the coating of the face after grinding forms photosensitive resin film; Behind exposing patterns on this photosensitive resin film, develop, the photosensitive resin film after developing is used as mask; Carry out etch processes, peel off photosensitive resin film, carry out etch processes then; After making the male and fomale(M&F) rust, the male and fomale(M&F) that forms is implemented the method for chromium plating; And use work mechanism such as rotating disk, utilize the cutting tool cutting as the method (WO2007/077892-A) of the base material of mold etc.
The concave-convex surface shape of the mold of being made up of random pattern or pseudo-random patterns can form through following mode: will make public to photosensitive resin film through the random pattern of for example generations such as FM silk screening, DLDS (Dynamic Low-Discrepancy Sequence) method, the microphase-separated method of patterning of utilizing segmented copolymer or BPF. method; Develop; Photosensitive resin film after developing is used as mask; Implement etch processes, thereby form.
The blooming of the present invention that obtains as described above is the blooming that is applicable to image display devices such as liquid crystal indicator; For example, can be: the resin bed on the base material film be the hard coat film (containing the light transmission particulate sometimes) of the hard coat of the scar that is used to prevent that various external force from causing; Resin bed is to be used to make the light diffusion of penetrating from liquid crystal cells and the looking of light diffusion layer (containing the light transmission particulate as light diffusing agent) of improving the visual angle recognized the sidelight diffusion barrier; Resin bed is the antiglare film that is used to prevent the antiglare layer with concave-convex surface (containing the light transmission particulate sometimes) that extraneous light is mirrored, dazzled; Resin bed is to be used to make the light diffusion of inciding liquid crystal cells and the backlight side optical diffusion film (diffuser plate) etc. that prevents the light diffusion layer (containing the light transmission particulate as light diffusing agent) of interference line that back light unit causes etc.Hard coat film, look and recognize sidelight diffusion barrier and antiglare film and can be used as usually to look and recognize looking of side polaroid and recognize the side diaphragm and fit in light polarizing film and use (surface that promptly, is configured in image display device).The backlight side optical diffusion film is usually as the backlight side diaphragm of backlight side polaroid and fit in light polarizing film.
Blooming of the present invention can also possess lamination anti-reflection layer of (with the face of base material film opposition side) on resin bed.Anti-reflection layer is provided with for unlimited reduction reflectivity, can prevent mirroring to display device through forming anti-reflection layer.As anti-reflection layer, can enumerate: the low-index layer that constitutes by the low material of refractive index ratio resin bed; And by the laminated structure of the material of refractive index ratio resin floor height low-index layer that constitutes and the low-index layer that constitutes by the low material of this high refractive index layer of refractive index ratio etc.The not special restriction of the lamination method of anti-reflection layer, directly lamination to resin bed, also can prepare in addition in advance with the anti-reflection layer lamination to base material film and laminate, and use bonding agent etc. fits to it on resin bed.
< polaroid >
Polaroid of the present invention possesses: light polarizing film and the blooming that obtains through above-mentioned manufacturing approach, said blooming with base material film side and the opposed mode lamination of this light polarizing film on this light polarizing film.Light polarizing film has the function of from incident light, taking out linear polarization, and its kind is not special to be limited.As the example of suitable light polarizing film, can give an example and on polyvinyl alcohol resin, adsorb the light polarizing film of dichromatism pigment and this dichromatism pigment generation orientation.As polyvinyl alcohol resin, except the saponified of vinyl acetate is the polyvinyl alcohol (PVA), the part of can also giving an example formaldehyde condensed polyvinyl alcohol, ethylene saponified etc.As the dichromatism pigment, can use iodine or dichromatic organic dyestuff.And the polyene alignment films of the desalination acid treatment thing of the processed thing of polyvinyl alcohol (PVA), PVC also can become light polarizing film.The thickness of light polarizing film is generally about 5～80 μ m.
Polaroid of the present invention can be in above-mentioned light polarizing film single or double (normally single face) lamination blooming of the present invention and polaroid, also can be in above-mentioned light polarizing film one side lamination transparent protective film, another side lamination blooming of the present invention and polaroid.
At this moment, blooming also has the function of the protective clear layer (diaphragm) as light polarizing film.Protective clear layer can form on light polarizing film through the method for using applying transparent resin films such as bonding agent, the method that is coated with the coating fluid that contains transparent resin etc.Likewise, blooming of the present invention can use bonding agent etc. to fit on the light polarizing film.
The transparent resin film preferably clear property, physical strength, thermal stability, moisture shielding etc. that become transparent protective film are good; As such transparent resin film; For example, can illustration by acetate fiber prime system resins such as triacetyl cellulose, diacetyl cellulose, cellulose-acetate propionates; Polycarbonate-based resin; Polyacrylate, polymethylmethacrylate etc. (methyl) acrylic resin; Polyester based resin such as polyethylene terephthalate, PEN; Chain such as tygon, polypropylene polyolefin-based resins; Cyclic polyolefin hydrocarbon system resin; Phenylethylene resin series; Polysulfones; Polyethersulfone; The film that polyvinyl chloride resin etc. form.These transparent resin films can be optically isotropic resin moldings, also can be that the visual angle when being assembled into image display device with compensation is that purpose has optically anisotropic resin molding.
< image display device >
Image display device of the present invention is the device that the polaroid of combination the invention described above obtains with various information are reflected the image-displaying member of picture.The kind of image display device of the present invention is not special to be limited; Except that the LCD that has used liquid crystal panel (LCD), can also give an example: Brown tube (cathode-ray tube (CRT): CRT) screen of display, plasma scope (PDP), field-emitter display (FED), surface conductive type electron emission display device (SED), OLED display, laser writer, projection TV etc.
For example, polaroid of the present invention is being configured in when making liquid crystal panel on the liquid crystal cells, polaroid is that the mode (its resin bed is the outside) of liquid crystal cell side is configured on the liquid crystal cells with its light polarizing film.For other image display device too.Blooming can be configured in looking of image-displaying member and recognize side, also can be configured in backlight side, perhaps also can be configured in both sides.Looking when recognizing side configuration blooming, blooming can play a role as hard coat film, optical diffusion film, antiglare film or antireflection film etc.On the other hand, when backlight side configuration blooming, blooming can prevent to disturb the optical diffusion film (diffuser plate) of line etc. etc. as making the light diffusion of injecting liquid crystal cells and play a role.
Embodiment
Below, enumerate embodiment, the present invention will be described in more detail, but the present invention is not limited to these embodiment.
< embodiment 1 >
Mix following composition, prepare ultra-violet solidified coating fluid.
Uv curing resin: pentaerythritol triacrylate 60 weight portions and polyfunctional carbamate acrylic ester (reaction product of hexamethylene diisocyanate and pentaerythritol triacrylate) 40 weight portions,
Photoepolymerizationinitiater initiater: " Lucirin TOP " (BASF AG's system, chemical name: 2,4,6-trimethylbenzoyl diphenyl phosphine oxide) 5 weight portions,
Diluting solvent: ethyl acetate 100 weight portions.
Then, use the intaglio plate spreader that above-mentioned coating fluid is applied on the triacetyl cellulose that thickness is 80 μ m (TAC) film (base material film), obtain the laminate (painting process) of base material film and coating layer.At this moment; The coating of coating fluid is undertaken by following mode; Promptly; The average film thickness of the coating layer after solidifying is set at 10 μ m; The quantity delivered of regulating the coating fluid of supplying with by the intaglio plate spreader than the ratio of base material film transporting velocity (rotational speed of intaglio plate spreader with) through control stretching, the thickness outward appearance of the preceding head region of the coating layer (curing resin layer) behind the curing process of stating after simultaneously (meet above-mentioned definition curing resin layer the sintering thickness, meet the Δ H (10) (from the end portion of the sintering of coating layer to apart from the length till the position of the 10mm of this end portion being the average gradient that the thickness the coating layer of 10mm increases) and the above-mentioned condition abundance property (whether continuing to increase to reaching the thickness of setting coating layer the thickness 10 μ m) (ii) of above-mentioned formula (1) from the front (coating beginning end) of coating layer) as shown in table 1.In table 1, do zero with fully satisfying above-mentioned condition situation note (ii), insufficient satisfied situation note work *.
Then, after the laminate drying of utilizing drying oven to make to obtain, use mip rolls that the surface is pushed against painting layer surface and makes its driving fit by the chrome-plated roller of milled processed as minute surface.Under this state, be 700mW/cm with the maximal illumination of UVA from the base material film side
2, UVA the accumulation light quantity be 300mJ/cm
2The mode irradiation ultraviolet radiation, make coating layer solidify (curing process).Then, peel off laminate, thereby the average film thickness that obtains the resin bed that the solidfied material by uv curing resin forms is the blooming of 10 μ m from chrome-plated roller.
Fig. 2 is the figure of the Thickness Variation of preceding head region that the curing resin layer that blooming had that obtains in the present embodiment is shown (coating beginning end regions).The continuous thickness analyzer that the mensuration of Thickness Variation uses the upright electrical equipment (Co., Ltd.) of peace to make.Transverse axis among Fig. 2 (being coated with cloth length) expression apart from the base material film end (coating layer front side end), along the distance (mm) of base material film throughput direction.In the present embodiment, the front of curing resin layer (coating layer) is positioned at the position of the about 10mm of coating length.
< embodiment 2～3, comparative example 1～3 >
Carry out the coating of coating fluid while passing through the quantity delivered that control stretching regulates the coating fluid of being supplied with by the intaglio plate spreader than the ratio of base material film transporting velocity (rotational speed of intaglio plate spreader with); So that the thickness outward appearance of the preceding head region of curing resin layer and setting average film thickness are as shown in table 1; In addition, make blooming with embodiment 1 identically.Fig. 3～Fig. 7 is respectively the figure of the Thickness Variation of preceding head region that the curing resin layer that blooming had that obtains in embodiment 2～3, the comparative example 1～3 is shown (coating beginning end regions).
In addition, as shown in Figure 5 in comparative example 1, the mode that accumulates (maximum value of thickness) with the liquid at the preceding head region generation coating fluid of coating layer is coated with.The thickness of this maximum value (thickness of sintering) is 7 μ m, and minimizing thickness following closely is 6 μ m.
(evaluation of resin residue)
The surface of the chrome-plated roller after the blooming of each embodiment, comparative example has been made in observation, and confirmed with curing resin layer before head region corresponding position have or not resin residue.The situation note that resin residue arranged unconfirmed does zero, confirm the situation note that resin residue is arranged do *.The result is as shown in table 1.
[table 1]
As shown in table 1, through be set at thickness less than 4 μ m behind the curing process with sintering with coating layer, be more preferably fully satisfy above-mentioned condition (ii) and/or mode (iii) form coating layer, thereby can effectively prevent resin residue.On the other hand, if the thickness of the sintering of coating layer is more than the 4 μ m, resin residue takes place then.Particularly the comparative example 1 that liquid accumulates has taken place in the preceding head region at coating layer, and resin residue is obvious.
Claims (6)
1. the manufacturing approach of a blooming is characterized in that, comprises following operation:
Painting process, coating contains the coating fluid of active energy ray-curable resin on the base material film of carrying continuously, forms coating layer; With
Curing process under the state on the surface that pushes against the surface of mold said coating layer, shines active energy beam from said base material film side to said coating layer,
In said painting process, be coated with said coating fluid with the mode of the thickness less than 4 μ m behind the said curing process in sintering of the said coating layer in the preceding head region of said coating layer.
2. method according to claim 1, wherein,
The coating of the said coating fluid in the said painting process through with said curing process after the thickness of coating layer preestablish the regulation thickness relatively and carry out,
In said painting process, be coated with said coating fluid with front to the mode that the thickness that reaches said coating layer between the said predefined regulation thickness continues to increase from said coating layer.
3. method according to claim 1 and 2, wherein,
When will be made as apart from the distance of the throughput direction of the said base material film in edge of the end portion of the sintering of said coating layer L, with the thickness of the said coating layer behind the said curing process in the distance L be made as H (L), average gradient that the thickness in the distance L is increased is made as Δ H (L) and when representing with following formula (1); In said painting process; With the Δ H (10) of L=10 is that mode below 0.0003 is coated with said coating fluid; The unit of said distance L and thickness H (L) is mm
ΔH(L)＝{H(L)-H(0)}/L (1)。
4. according to each described method in the claim 1～3, wherein,
The coating of the said coating fluid in the said painting process is carried out through using mould to be coated with the spue pressure of the said coating fluid on the said base material film of machine and control.
5. a polaroid is characterized in that, the blooming that possesses light polarizing film and make through each described method in the claim 1～4,
Wherein, said blooming with said base material film side and the opposed mode lamination of said light polarizing film on said light polarizing film.
6. an image display device is characterized in that, possesses described polaroid of claim 5 and image-displaying member,
Wherein, said polaroid is that the mode of said image-displaying member side is configured on the said image-displaying member with its light polarizing film.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
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| JP2011-091878 | 2011-04-18 | ||
| JP2011091878A JP2012226038A (en) | 2011-04-18 | 2011-04-18 | Optical film manufacturing method, polarizer, and image display device |
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| CN102749665A true CN102749665A (en) | 2012-10-24 |
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| JP (1) | JP2012226038A (en) |
| KR (1) | KR20120118421A (en) |
| CN (1) | CN102749665A (en) |
| TW (1) | TW201247406A (en) |
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| JPWO2016047523A1 (en) * | 2014-09-26 | 2017-07-13 | 旭硝子株式会社 | Optical element and imaging apparatus |
| CN105425323A (en) * | 2015-12-17 | 2016-03-23 | 宁波惠之星新材料科技有限公司 | Impressing roller and coating equipment for preparing ultraviolet curing coating |
| JP2018200447A (en) * | 2017-05-30 | 2018-12-20 | 日東電工株式会社 | Manufacturing method of optical film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007076089A (en) * | 2005-09-13 | 2007-03-29 | Konica Minolta Opto Inc | Method for producing optical film having uneven surface and optical film having uneven surface |
| CN101344602A (en) * | 2007-07-11 | 2009-01-14 | 索尼株式会社 | Antiglare film, method for manufacturing antiglare film, polarizer, and display device |
| CN101493533A (en) * | 2009-02-11 | 2009-07-29 | 广东东邦科技有限公司 | Reflection-type anti-dazzle Polaroid, special coating thereof and making method thereof |
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| JP3200963B2 (en) * | 1992-06-09 | 2001-08-20 | 松下電器産業株式会社 | Coating method and applicator using bar coater |
| JP5061421B2 (en) * | 2004-03-24 | 2012-10-31 | 東レ株式会社 | Coating method and manufacturing method of display member |
| JP4742511B2 (en) * | 2004-04-02 | 2011-08-10 | 東レ株式会社 | Coating method, coating apparatus, and display member manufacturing method |
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- 2011-04-18 JP JP2011091878A patent/JP2012226038A/en active Pending
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- 2012-04-16 KR KR1020120039049A patent/KR20120118421A/en not_active Application Discontinuation
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007076089A (en) * | 2005-09-13 | 2007-03-29 | Konica Minolta Opto Inc | Method for producing optical film having uneven surface and optical film having uneven surface |
| CN101344602A (en) * | 2007-07-11 | 2009-01-14 | 索尼株式会社 | Antiglare film, method for manufacturing antiglare film, polarizer, and display device |
| CN101493533A (en) * | 2009-02-11 | 2009-07-29 | 广东东邦科技有限公司 | Reflection-type anti-dazzle Polaroid, special coating thereof and making method thereof |
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| TW201247406A (en) | 2012-12-01 |
| JP2012226038A (en) | 2012-11-15 |
| KR20120118421A (en) | 2012-10-26 |
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