CN106886065B - Optical laminate, polarizing film and image display device - Google Patents
Optical laminate, polarizing film and image display device Download PDFInfo
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- CN106886065B CN106886065B CN201610973970.9A CN201610973970A CN106886065B CN 106886065 B CN106886065 B CN 106886065B CN 201610973970 A CN201610973970 A CN 201610973970A CN 106886065 B CN106886065 B CN 106886065B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
- G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/0427—Coating with only one layer of a composition containing a polymer binder
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
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- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Surface Treatment Of Optical Elements (AREA)
- Laminated Bodies (AREA)
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention provides optical laminate, polarizing film and image display device.The optical laminate can sufficiently inhibit the filming that optical functional layer is realized while the generation of interference fringe and curling, can prevent manufacturing cost from increasing.Optical laminate of the invention has optical functional layer on a face of Mght-transmitting base material, it is characterized in that, the surface of above-mentioned optical functional layer has concaveconvex shape, for the concaveconvex shape, if the average slope angle of bump is θ a, the concave-convex degree of bias is Sk, the absolute value and θ a of above-mentioned Sk meets following formula.0.01°≦θa≦0.10°|Sk|≦0.5.
Description
The application is divisional application, and application No. is 201310049923.1, the applying date to be for the China national of original application
It is on 2 7th, 2013, entitled " optical laminate, polarizing film and image display device ".
Technical field
The present invention relates to optical laminate, polarizing film and image display devices.
Background technique
In CRT display (CRT), liquid crystal display (LCD), plasma scope (PDP), electroluminescent hair
In the image display devices such as optical display unit (ELD), Field Emission Display (FED), it is equipped with by with antireflection property, antistatic property
The optical laminate that the functional layer of the various performances such as energy, hard painting propert, soil resistance is constituted.
Such optical laminate is that various optical functional layers are laminated on Mght-transmitting base material and are formed.Therefore, light transmission
Property substrate on form such as hard conating in the case where, the reflected light at the interface of Mght-transmitting base material and hard conating applies the anti-of surface with hard
It penetrates light to interfere, occurs being referred to as the uneven pattern of interference fringe since film thickness is uneven, produce asking for appearance damage
Topic.
The generation of this interference fringe in order to prevent, for example, in the case where forming hard conating on Mght-transmitting base material, many institutes
It is well known that in the resin combination for being used to form hard conating using can penetrate into Mght-transmitting base material and make its be swollen or it is molten
The solvent of solution (for example, with reference to patent document 1,2).By using the resin combination for containing such solvent, along with solvent
Mght-transmitting base material is penetrated into, the resin in resin combination is formed and penetrates into Infiltration layer made of in Mght-transmitting base material, as a result can
The interface for substantially eliminating Mght-transmitting base material and hard conating, can prevent the generation of interference fringe.
But seek to be in the existing optical laminate for preventing interference fringe by forming such Infiltration layer
It is substantially prevented from the generation of interference fringe, needs thickly to form Infiltration layer, so that inevitable when forming hard conating need to increase
The coating weight of used composition.
Therefore there are problems that optical laminate is difficult to filming or generation curling etc, also, when formation hard conating
When the coating weight of composition increases, the uneven thickness for being formed by hard conating is not only resulted in, it is increased that there is also manufacturing costs
Problem.
In addition, as optical laminate used on the surface of image display device, it is also known that recessed by the way that surface to have
The optical laminate (anti-glare film) on Mght-transmitting base material and imparting anti-glare is arranged in the antiglare layer of convex form.But this
In the anti-glare film of sample, that is, allow to the generation for preventing interference fringe, but yet have produce gonorrhoea sense, contrast reduces this
The problem of sample.
Existing technical literature
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2003-131007 bulletin
Patent document 2: Japanese Unexamined Patent Publication 2003-205563 bulletin
Summary of the invention
Problems to be solved by the invention
The present invention in view of above-mentioned status, and it is an object of the present invention to provide optical laminate, use made of the optical laminate polarize
Piece and image display device, the optical laminate can not produce while sufficiently inhibiting the generation of interference fringe and curling
Raw gonorrhoea sense, realizes the filming of optical functional layer, can prevent manufacturing cost from increasing.
The means to solve the problem
The present invention is a kind of optical laminate, is the optics on a face of Mght-transmitting base material with optical functional layer
Laminated body, which is characterized in that the surface of above-mentioned optical functional layer has concaveconvex shape, for the concaveconvex shape, if bump
When average slope angle is θ a, the concave-convex degree of bias (ス キ ュ ー ネ ス) is Sk, the absolute value and θ a of above-mentioned Sk meets following formula.
0.01°≦θa≦0.10°
|Sk|≦0.5
Also, it is preferably full if concave-convex arithmetic average roughness is Ra for the concaveconvex shape of above-mentioned optical functional layer
Foot formula.
0.02μm≦Ra≦0.10μm
Also, for the concaveconvex shape of above-mentioned optical functional layer, preferably indicate flat with λ a=2 π × (Ra/tan (θ a))
Equal wavelength X a meets following formula.
200μm≦λa≦800μm
Also, above-mentioned optical functional layer is preferably hard conating.
Also, above-mentioned optical functional layer is preferably to be laminated with the structure of low-index layer on hard conating.
Above-mentioned hard conating preferably comprises inorganic oxide particle and adhesive resin, which preferably dredges
Inorganic oxide particle after hydration process.
Also, it is preferred that above-mentioned inorganic oxide particle forms agglutination body and is included in hard conating, preferably above-mentioned agglutination body
Average grain diameter be 100nm~2.0 μm.
It is made of having polarizer the invention further relates to a kind of polarizing film, which is characterized in that above-mentioned polarizing film is
Has the polarizing film of above-mentioned optical laminate on polarizer surface.
The present invention also relates to image display devices, which is characterized in that it has above-mentioned optical laminate or above-mentioned inclined
Shake piece.
The present invention described further below.
The optics with the composition on a face of Mght-transmitting base material with optical functional layer is laminated in the present inventor
Body has made intensive studies, as a result, it has been found that, by the surface of optical functional layer (back to the face of the side of Mght-transmitting base material) shape
At specific concaveconvex shape, the generation of interference fringe can be suitably prevented, the leaching of Mght-transmitting base material is penetrated into due to being not necessarily forming
Infiltration layer, it is thus possible to realize filming, and then can prevent curling generation and manufacturing cost it is surging, found based on these
At the present invention.
Also, optical laminate according to the present invention has due to that need not form Infiltration layer in Mght-transmitting base material
Following effect: it compared with existing optical laminate, the selecting range of the material of Mght-transmitting base material and can be used to form
The selecting range of the material of solvent used in the composition of optical functional layer is big.
It should be noted that in the prior art, it is known that the surface in optical functional layer for the purpose of assigning anti-glare has
Have an optical laminate (anti-glare film) of concaveconvex shape, but optical laminate of the invention with it is such in the prior art anti-dazzle
Property film it is different.That is, the optical function layer surface of optical laminate of the invention is formed by concaveconvex shape and existing anti-glare
The surface of film is formed by concaveconvex shape and compares, and concave-convex height is lower, and the tilt angle of bump is gentler.Therefore,
It cannot be obtained using the optical laminate of the invention for being formed with such concaveconvex shape on optical functional layer existing anti-dazzle
Anti-glare as property film.On the other hand, according to the present invention, do not occur in anti-glare film as problem due to outer light and
The generation of caused gonorrhoea sense can obtain the optical laminate that can provide the excellent image of contrast (image).That is, of the invention
Optical laminate can be used in the visibility ameliorative way of image display device.
For optical laminate of the invention, there is optical functional layer on a face of Mght-transmitting base material.
Above-mentioned Mght-transmitting base material preferably has the substrate of flatness, heat resistance and mechanical strength.As formation light transmission
The concrete example of the material of property substrate, it can be cited for example that polyester (polyethylene terephthalate, poly- naphthalenedicarboxylic acid ethylene glycol
Ester), it is cellulose triacetate, cellulose diacetate, cellulose acetate-butyrate, polyester, polyamide, polyimides, polyether sulfone, poly-
Sulfone, polypropylene, polymethylpentene, polyvinyl chloride, Pioloform, polyvinyl acetal, polyether-ketone, polymethyl methacrylate, polycarbonate or
The thermoplastic resins such as polyurethane, glass.Polyester (polyethylene terephthalate, poly- naphthalenedicarboxylic acid second two can preferably be enumerated
Alcohol ester), cellulose triacetate.
Above-mentioned Mght-transmitting base material uses preferably in the form of above-mentioned material to be made to the membranous body for being imbued with flexibility, but can also
The substrate for using plate body to cope with the usage mode for requiring curability.
In addition, the amorphous olefin polymer (Cyclo- with alicyclic structure can be enumerated as above-mentioned Mght-transmitting base material
Olefin-Polymer:COP) film.It is total using norbornene-based polymer, the cyclic olefin based polymer of monocycle, ring-type
The substrate of yoke diene polymer, alicyclic vinyl ring type hydrocarbon system polymer etc., for example, the manufacture of Zeon society, Japan
ZEONEX and ZEONOR (norbornene resin), SUMILIT FS-1700 of SUMITOMO BAKELITE society manufacture, JSR society
ARTON (modified norbornene resin), the APEL (cyclic olefin copolymer) of Mitsui Chemicals society manufacture, Ticona society of manufacture
Serial (the ester ring type acrylic acid of OPTOREZ OZ-1000 that the Topas (cyclic olefin copolymer) of manufacture, chemical conversion society, Hitachi manufacture
Resinoid) etc..
Also, substrate is replaced as triacetyl cellulose, it is also preferred that the FV series of chemistry society, Asahi Chemical Industry manufacture is (low two-fold
Penetrate rate, low modulus of photoelasticity film).
It is preferably 20 μm~300 μm in the case where membranous body, under more preferable as the thickness of above-mentioned Mght-transmitting base material
Be limited to 30 μm, the upper limit be 200 μm.In the case that Mght-transmitting base material is plate body, it is also possible to the thickness more than above-mentioned thickness.
For above-mentioned Mght-transmitting base material, when being formed on above-mentioned hard conating, to improve cementability, in addition to corona discharge
The physical treatments such as processing, oxidation processes or chemically processing are outer, can also be pre-coated with tackifier or the painting referred to as priming paint
Material.
Also, using the triacetyl cellulose used more mainly as the Mght-transmitting base material towards LCD as material, and
And in the case where with display membrane turning to target, preferably above-mentioned Mght-transmitting base material with a thickness of 20 μm~65 μm.
Above-mentioned optical functional layer preferably has hard painting propert energy, such as hard in the pencil based on JIS K5600-5-4 (1999)
In degree test (load 4.9N), hardness is preferably H or more, more preferably 2H or more.
In optical laminate of the invention, above-mentioned optical functional layer is formed on a face of above-mentioned Mght-transmitting base material, table
Face has concaveconvex shape.
In optical laminate of the invention, for the concaveconvex shape formed on the surface of above-mentioned optical functional layer, if concave-convex
When the average slope angle in portion is θ a, the concave-convex degree of bias is Sk, above-mentioned θ a and Sk meets following formula.
0.01°≦θa≦0.10°
|Sk|≦0.5
The reasons why capable of preventing interference fringe using the concaveconvex shape on the surface for being formed in above-mentioned optical functional layer, is, in light
The light for learning functional layer surface reflection diffuses, and becomes the light of non-interfering property.In order to make light diffusion, need to have in convex-concave surface
Inclination, index are average slope angle θ a.
In optical laminate of the invention, the lower limit of the average slope angle θ a of above-mentioned bump is 0.01 °.Less than 0.01 °
When, inclination is insufficient, cannot prevent interference fringe.Preferred lower limit is 0.03 °, further preferred lower limit is 0.04 °.And
And the upper limit of the average slope angle θ a of above-mentioned bump is 0.10 °.When greater than 0.10 °, the inclination angle of above-mentioned bump is spent
Greatly, thus the gonorrhoea sense caused by the diffusing reflection of outer light can be led to the problem of.The preferred upper limit is 0.09 °, further
The preferred upper limit is 0.08 °.
Also, in the present invention, the absolute value of the degree of bias Sk of above-mentioned bumps is 0.5 or less.For above-mentioned degree of bias Sk, absolutely
Value is bigger, illustrates that surface unevenness profile is bigger relative to the asymmetry of average line.When the asymmetry of surface unevenness profile is big,
Can there are steep hills portion and gentle valley (when Sk > 0), even if above-mentioned average slope angle θ a is met the above range, also show
Inclination angle distribution exists uneven out.That is, the inclination angle in mountain portion becomes larger, the inclination angle of the valley becomes smaller (pass of the Shi Shanyu paddy of Sk < 0
System is opposite).Under such circumstances, in the big part in inclination angle, the diffusion of light becomes excessive, it is possible that gonorrhoea sense is asked
Topic, and on the other hand, in the small part in inclination angle, possibly it can not suitably prevent interference fringe.The absolute value of above-mentioned Sk is 0.5
When following, the asymmetry of surface unevenness profile is small, and the unevenness of tilt angle distribution is able to moderate inhibition, can suitably prevent
Interference fringe, while being also able to suppress gonorrhoea sense.The absolute value of above-mentioned Sk be more preferably 0.4 hereinafter, further preferably 0.2 with
Under.
In addition, if concave-convex arithmetic average roughness is Ra, preferably satisfying following formula in the present invention.
0.02μm≦Ra≦0.10μm
In the present invention, preferably the size (height) of each protrusion of concaveconvex shape is controlled, index is arithmetic average
Roughness Ra.
The lower limit of the arithmetic average roughness Ra of above-mentioned bumps is 0.02 μm.When above-mentioned Ra is less than 0.02 μm, each protrusion
Size (height) is too small relative to the wavelength of light, can not obtain diffusion effect sometimes.Preferred lower limit is 0.03 μm, further
Preferred lower limit is 0.04 μm.Also, the upper limit of above-mentioned Ra is 0.10 μm.When Ra is more than 0.10 μm, each protrusion becomes excessive, meeting
Make through light skew, so as to cannot get distinct image.The preferred upper limit is 0.09 μm, and the further preferred upper limit is
0.08μm。
Also, in the present invention, the mean wavelength λ a preferably indicated with λ a=2 π × (Ra/tan (θ a)) be 200 μm or more and
800 μm or less.
Above-mentioned mean wavelength λ a is the parameter for indicating concave-convex equispaced.When mean wavelength λ a is less than 200 μm, concave-convex mistake
It is small, interference fringe can not be prevented, alternatively, the variation at the inclination angle of concave and convex plane is excessive, it is possible that gonorrhoea sense.Mean wavelength
When λ a is more than 800 μm, the variation at the inclination angle of concave and convex plane becomes smaller, and possibly can not suitably prevent interference fringe.It is above-mentioned average
The preferred lower limit of wavelength X a is 300 μm, and the preferred upper limit is 600 μm.
In addition, being formed by 10 mean roughness (Rz) of concaveconvex shape preferably smaller than on the surface of above-mentioned hard conating
0.5 μm, the preferred upper limit is 0.3 μm.It is concave-convex excessive when above-mentioned Rz is 0.5 μm or more, it is possible that gonorrhoea sense.To upper
The lower limit for stating Rz is not particularly limited, and can carry out being suitable for adjustment in the range that can obtain diffusion effect.
It should be noted that above-mentioned θ a, Sk, Ra and Rz are using according to JIS B 0601-1994 in this specification
The value that method obtains roughness curve and found out according to the roughness curve by unit datum length.Ra and Rz is JISB 0601-
It is worth defined in 1994, θ a is based on surface roughness measurement device: SE-3400 operational manual (1995.07.20 revision) (strain
Little Ban research institute, formula commercial firm) in record definition value, as shown in Figure 1, can with protrusion height present in datum length L it
(h1+h2+h3+…+hn) arc tangent θ a=tan-1{(h1+h2+h3+…+hn)/L } it finds out.
Also, above-mentioned Sk is the value defined with following formula.
[number 1]
Herein, l indicates datum length；F (x) indicates roughness curve；Rq is r.m.s. roughness, is defined with following formula.
[number 2]
Such θ a, Sk, Ra and Rz can use such as surface roughness measurement device: SE-3400/ Co., Ltd. little Ban is ground
Study carefully and made etc. is found out to measure.
Above-mentioned specific concaveconvex shape in order to obtain, can enumerate following method etc.: (1) will contain particle and adhesive tree
The composition of rouge is coated on Mght-transmitting base material, is formed concave-convex；(2) by the adhesive resin containing 2 kinds of phases non-compatibility each other
Composition be coated on Mght-transmitting base material, to form bumps by mutually separating；(3) adhesive resin is coated on Mght-transmitting base material
On, the dandy roll with concaveconvex shape is transferred, is formed concave-convex；Etc..It is excellent from the easy aspect of manufacture in these methods
The method for selecting (1), hereafter will be described in more detail.
Above-mentioned optical functional layer preferably comprises inorganic oxide particle.
Above-mentioned inorganic oxide particle is the material to form the concaveconvex shape on surface of above-mentioned optical functional layer, of the invention
In optical laminate, preferably above-mentioned inorganic oxide particle forms agglutination body and is included in above-mentioned optical functional layer, by this
The agglutination body of inorganic oxide particle forms the concaveconvex shape on the surface of above-mentioned optical functional layer.
As inorganic oxide particles, it can be cited for example that silicon dioxide microparticle, alumina particulate, zirconia particles, two
Titanium oxide microparticle, tin oxide particles, ATO particle, zinc oxide fine particles etc..
Also, above-mentioned inorganic oxide particle has preferably been surface treated.By being carried out to above-mentioned inorganic oxide particle
Surface treatment, can suitably control distribution of the agglutination body of the inorganic oxide particle in above-mentioned optical functional layer, and
And the raising for the chemical resistance and resistance to saponifiability that can be realized inorganic oxide particle itself.
As above-mentioned surface treatment, preferably silicic acid anhydride, for example, can enumerate with the silanization with methyl or octyl
Close the method etc. that the surface treating agents such as object handle above-mentioned inorganic oxide particle, wherein with the silanization with octyl
It is suitable for closing the method that object is handled.
Herein, usually on the surface of above-mentioned inorganic oxide particle, there are hydroxyls, above-mentioned by carrying out above-mentioned surface treatment
The hydroxyl on inorganic oxide particle surface tails off, and in turn, type, treating capacity by adjusting above-mentioned surface treating agent can be adjusted
The ratio of the hydroxyl on whole above-mentioned inorganic oxide particle surface.Thereby, it is possible to control the agglutination journey of above-mentioned inorganic oxide particle
Degree, is easy to form above-mentioned specific concaveconvex shape on the surface of optical functional layer.
Also, above-mentioned inorganic oxide particle is preferably amorphous state.Above-mentioned inorganic oxide particle is crystalline situation
Under, the lattice defect as contained in its crystalline texture, the lewis acidity of inorganic oxide particle becomes strong, possibly can not control
The excessive agglutination of inorganic oxide particle processed.
As such inorganic oxide particle, it is easy to be aggregated from its own and examines in terms of easily forming aftermentioned agglutination body
Consider, is suitable for using such as fumed silica.Herein, above-mentioned fumed silica refers to has by what dry method made
The amorphous carbon/silicon dioxide of 200nm partial size below is to react the volatile compound containing silicon in the gas phase to obtain
's.It is specific it can be cited for example that by silicon compound (such as SiCl4) hydrolyzed in the flame of oxygen and hydrogen and the substance etc. that generates.Tool
Body is it can be cited for example that AEROSIL R805 (manufacture of NIPPON AEROSIL society) etc..
The content of above-mentioned inorganic oxide particle is not particularly limited, is 0.1 matter preferably in above-mentioned optical functional layer
Measure the mass of %~5.0 %.When less than 0.1 mass %, possibly it can not be formed on the surface of optical functional layer above-mentioned specific recessed
Convex form can not prevent interference fringe, when more than 5.0 mass %, due to excessively generating agglutination body, occur internal diffusion and/or
It is concave-convex that larger surface is generated in optical functional layer, thus occurs the problem of gonorrhoea sense sometimes.Preferred lower limit is 0.5 matter
Measure %, the preferred upper limit is 3.0 mass %.
The above-mentioned preferred average primary particle diameter of inorganic oxide particle is 1nm~100nm.When less than 1nm, possibly can not be in light
The surface for learning functional layer, which forms above-mentioned specific concaveconvex shape, leads to light due to inorganic oxide particle when more than 100nm
Diffusion, is possible to be deteriorated using the darkroom contrast of the image display device of optical laminate of the invention.Preferred lower limit
For 5nm, the preferred upper limit is 50nm.
It should be noted that the average primary particle diameter of above-mentioned inorganic oxide particle is (excellent according to section electron microscope
Being selected as the infiltration types such as TEM, STEM and multiplying power is 50,000 times or more) the value that is measured using image processing software of image.
Shape under the above-mentioned preferred individual particle state of inorganic oxide particle is spherical.Pass through above-mentioned inorganic oxide particle
Individual particle be it is such spherical, by optical laminate of the invention be applied to image display device in the case where, can obtain
Obtain the display image of high contrast.
It should be noted that above-mentioned " spherical " it can be cited for example that just spherical, oval spherical etc., refer to that remove so-called nothing fixed
The meaning of shape.
Also, in the present invention, on the agglutination body of above-mentioned inorganic oxide particle is formed preferably in above-mentioned optical functional layer
State the structure that inorganic oxide particle connects into beads shape (peart necklace shaped).
Miniliform agglutination body is connected by forming above-mentioned inorganic oxide particle in above-mentioned optical functional layer, is based on
The protrusion of the agglutination body, which becomes, tilts few gentle shape, thus be easy to make the surface unevenness profile of above-mentioned optical functional layer at
For above-mentioned specific concaveconvex shape.
It should be noted that so-called above-mentioned inorganic oxide particle connects into miniliform structure, it can be cited for example that on
Stating inorganic oxide particle, linearly continuously coupled structure (linear chain structure), more than two linear chain structures are entwined
Structure, having 1 or 2 or more side chain in above-mentioned linear chain structure, (side chain is by the continuous shape of more than two inorganic oxide particles
At) the arbitrary structure such as branched structure.
Also, the preferred average grain diameter of the agglutination body of above-mentioned inorganic oxide particle is 100nm~2.0 μm.If insufficient
100nm then possibly can not form above-mentioned specific concaveconvex shape on the surface of optical functional layer, if more than 2.0 μm, due to upper
State the agglutination body of inorganic oxide particle and lead to light diffusion, using optical laminate of the invention image display device it is dark
Room contrast is possible to be deteriorated.The preferred lower limit of the average grain diameter of above-mentioned agglutination body is 200nm, and the preferred upper limit is
1.5μm。
It should be noted that the average grain diameter of the agglutination body of above-mentioned inorganic oxide particle obtains as follows: being cut by utilizing
The observation (10,000~20,000 times of degree) of face electron microscope select the more agglutination body containing inorganic oxide particle 5 μm are shown in
The region of side, measures the partial size of the agglutination body of inorganic oxide particle in the region, by 10 maximum inorganic oxide particles
Agglutination body partial size it is average, the average grain diameter of the agglutination body of as above-mentioned inorganic oxide particle.It should be noted that above-mentioned
" partial size of the agglutination body of inorganic oxide particle " measures as follows: by the section of the agglutination body of inorganic oxide particle to appoint
Straight line spacing in the case that 2 parallel straight lines of meaning are clamped, in the combination of 2 straight lines when this 2 straight wire spacing maximums
The partial size of agglutination body from as inorganic oxide particle.Also, the partial size of the agglutination body of above-mentioned inorganic oxide particle can also
To be found out using image analysis software.
In optical laminate of the invention, above-mentioned optical functional layer is preferably hard conating.
The thickness of above-mentioned hard conating is preferably 2.0 μm~7.0 μm.If less than 2.0 μm, hard coating surface be sometimes prone to by
Wound, if not only can not achieve the filming of hard conating more than 7.0 μm, it is also possible to make hard conating be easy to be broken, or curling becomes
Problem.The preferred range of the thickness of above-mentioned hard conating is 2.0 μm~5.0 μm.It should be noted that the thickness of above-mentioned hard conating
Degree can be measured by cross sectional microscopy observation.
For above-mentioned hard conating, preferably above-mentioned inorganic oxide particle disperses in adhesive resin.
As above-mentioned adhesive resin, preferably according to the hydrophobicity of the above-mentioned inorganic oxide particle through silicic acid anhydride come
Adjust polarity.As the polar method of adjustment adhesive resin, it can be cited for example that adjusting the hydroxyl value of adhesive resin.Pass through
So that the polarity of adhesive resin is become suitable, can suitably control the agglutination and dispersibility of above-mentioned inorganic oxide particle, is easy
Form above-mentioned specific concaveconvex shape.
Above-mentioned adhesive resin preferably clear substance, preferably for example (it is by ultraviolet light to ionizing radiation curable resin
Or electron ray effect and cured resin) substance that is solidified into of irradiation by ultraviolet light or electron ray.
It should be noted that in this specification unless otherwise, " resin " is also including monomer, oligomer, polymer
Deng concept.
As above-mentioned ionizing radiation curable resin, it can be cited for example that the compound with functional groups such as acrylic esters
Deng the compound with 1 or 2 or more unsaturated bond.As the compound with 1 unsaturated bond, it can be cited for example that
(methyl) ethyl acrylate, (methyl) ethylhexyl acrylate, styrene, methyl styrene, n-vinyl pyrrolidone etc..Make
For the compound of the unsaturated bond with 2 or more, it can be cited for example that trimethylolpropane tris (methyl) acrylate, 3 third
Glycol two (methyl) acrylate, diethylene glycol (deg) two (methyl) acrylate, dipropylene glycol two (methyl) acrylate, season penta
Tetrol three (methyl) acrylate, pentaerythrite four (methyl) acrylate, dipentaerythritol six (methyl) acrylate, 1,6-
Hexylene glycol two (methyl) acrylate, neopentyl glycol two (methyl) acrylate, trimethylolpropane tris (methyl) acrylate,
Double trimethylolpropane four (methyl) acrylate, dipentaerythritol five (methyl) acrylate, tripentaerythritol eight (methyl)
Acrylate, tetrapentaerythritol ten (methyl) acrylate, isocyanuric acid three (methyl) acrylate, isocyanuric acid two (methyl)
It is acrylate, polyester three (methyl) acrylate, polyester two (methyl) acrylate, bis-phenol two (methyl) acrylate, double sweet
Oily four (methyl) acrylate, adamantyl two (methyl) acrylate, isobornyl two (methyl) acrylate, bicyclopentane
Two (methyl) acrylate, tristane two (methyl) acrylate, double trimethylolpropane four (methyl) acrylate etc. are more
Functional compound etc..It is wherein suitable for using pentaerythritol tetraacrylate (PETTA).It should be noted that in this specification,
" (methyl) acrylate " is methacrylate and acrylate.Also, in the present invention, solidify as above-mentioned ionizing ray
Type resin also can be used the above-mentioned compound modified substance such as PO, EO.
Other than above compound, the relatively low polyester resin of molecular weight with unsaturated double-bond, polyether resin, propylene
Acid resin, epoxy resin, carbamate resins, alkyd resin, spiral shell acetal resin, polybutadiene, polythiol-polyenoid
Resin etc. is also used as above-mentioned ionizing radiation curable resin.
Above-mentioned ionizing radiation curable resin can also (thermoplastic resin etc. only makes to use when coating with solvent-dry type resin
The solvent seasoning added then becomes the resin of overlay film in adjustment solid component) share after use.By sharing solvent-dry type
Resin can be effectively prevented the overlay film defect of the coated face of coating fluid when forming hard conating.
To can be shared with above-mentioned ionizing radiation curable resin and carry out using solvent-dry type resin it is not special
It limits, thermoplastic resin generally can be used.
Above-mentioned thermoplastic resin is not particularly limited, it can be cited for example that phenylethylene resin series, (methyl) acrylic acid series
It is resin, vinyl acetate resin, vinyl ethers system resin, halogen-containing resin, ester ring type olefin-based resin, polycarbonate-based
Resin, polyester based resin, polyamide resin, cellulose derivative, silicone-based resin and rubber or elastomer etc..Above-mentioned heat
Plastic resin is preferably amorphism and dissolves in organic solvent and (especially can dissolve polymer of more than two kinds and/or curability
The general solvent of compound).Especially from the transparency and weatherability as from the aspect of, optimization styrene system resin, (first
Base) acrylic resin, ester ring type olefin-based resin, polyester based resin, cellulose derivative (cellulose esters etc.) etc..
Also, above-mentioned hard conating can also contain heat-curing resin.
Above-mentioned heat-curing resin is not particularly limited, it can be cited for example that phenol resin, carbamide resin, phthalic acid two
Allyl ester resin, melamine resin, guanamine resin, unsaturated polyester resin, polyurethane resin, epoxy resin, alkyd amino
Resin, melamine-urea cocondensation resin, silicone resin, polyorganosiloxane resin etc..
Hard conating containing above-mentioned inorganic oxide particle and adhesive resin for example can be formed: will contain above-mentioned
Inorganic oxide particle, the monomer component of adhesive resin and the composition for hard coat of solvent be coated on Mght-transmitting base material
And make it dry, for being formed by film, its solidification is made by ionizing radiation exposure etc., to form hard conating.
As the solvent contained by above-mentioned composition for hard coat, it can be cited for example that alcohol is (for example, methanol, ethyl alcohol, third
Alcohol, isopropanol, n-butanol, sec-butyl alcohol, the tert-butyl alcohol, benzyl alcohol, PGME, ethylene glycol), ketone (acetone, methyl ethyl ketone, methyl
Isobutyl ketone, cyclohexanone etc.), ethers (dioxane, tetrahydrofuran etc.), aliphatic hydrocarbon (hexane etc.), ester ring type hydro carbons (ring
Hexane etc.), aromatic hydrocarbon (toluene, dimethylbenzene etc.), halogenated carbons (methylene chloride, dichloroethanes etc.), esters (acetic acid first
Ester, ethyl acetate, butyl acetate etc.), dioxane (methyl cellosolve, ethyl cellosolve etc.), cellosolve acetate class, sulfoxide type
(dimethyl sulfoxide etc.), amides (dimethylformamide, dimethyl acetamide etc.) etc., are also possible to these mixture.
Above-mentioned composition for hard coat preferably further contains Photoepolymerizationinitiater initiater.
Above-mentioned Photoepolymerizationinitiater initiater is not particularly limited, well known substance can be used, concrete example it can be cited for example that
Acetophenones, benzophenone, rice Chi benzoylbenzoate (Michler's benzoyl benzoate), α-A meter Luo
Base ester (α-ア ミ ロ キ シ system エ ス テ Le), thioxanthene ketone class, phenylpropyl alcohol ketone class, benzil class, benzoin class, acylphosphine oxide class.
Also, it is preferred that being used after mixing photosensitizer, as its concrete example, it can be cited for example that n-butylamine, triethylamine, tri-n-butyl phosphine
Deng.
As above-mentioned Photoepolymerizationinitiater initiater, above-mentioned adhesive resin is the resin with free-radical polymerised unsaturated group
In the case where system, acetophenones, benzophenone, thioxanthene ketone class, benzoin, benzoin methylether is preferably used alone or as a mixture
Deng.Also, in the case that above-mentioned adhesive resin is the resin system with cationically polymerizable functional group, as above-mentioned photopolymerization
Aromatic diazonium salt, aromatic series sulfonium salt, aromatic iodonium salts, cyclopentadienyl is preferably used alone or in the form of a mixture in initiator
Metallic compound, benzoin sulphonic acid ester etc..
The content of above-mentioned Photoepolymerizationinitiater initiater is preferably with respect to the above-mentioned bonding of 100 mass parts in above-mentioned composition for hard coat
Agent resin is 0.5 mass parts~10.0 mass parts.If the hard painting propert of the hard conating formed can may become less than 0.5 mass parts
Must be insufficient, if will appear a possibility that obstruction solidifies instead more than 10.0 mass parts, therefore not preferably.
The content ratio (solid component) of raw material in above-mentioned composition for hard coat is not particularly limited, it is often preferred that
The 5 mass % of mass %~70, particularly preferably 25 mass of mass %~60 %.
In above-mentioned composition for hard coat, it can also be reflected according to the hardness, inhibition cure shrinkage, control for improving hard conating
The purpose of rate, add conventionally known dispersing agent, surfactant, antistatic agent, silane coupling agent, thickener, anti-coloring agent,
It is colorant (pigment, dyestuff), defoaming agent, levelling agent, fire retardant, ultraviolet absorbing agent, bonding agent, polymerization inhibitor, anti-oxidant
Agent, surface modifier, antitack agent etc..
Benard cell is formed due to can avoid hard conating as above-mentioned levelling agent, such as silicone oil, fluorine system surfactant etc.
Structure and it is preferred that.In the case where being coated with the resin combination containing solvent and being dried, in film, film coated surface and inner face
Surface tension difference etc. is generated, a large amount of convection current is thus caused in film.Benard cell is referred to as by the structure that the convection current generates
Structure is to cause to be formed by hard conating the reason of the problem of orange peel or coating defects etc occur.
Also, above-mentioned Benard cell's structure is there is a possibility that the bumps on the surface of hard conating are excessive and damage optical laminate
Appearance.If the convection current can be prevented using levelling agent as described above, therefore it can not only obtain no defect and unevenness
Hard coating film, and it is easily adjusted the concaveconvex shape of hard coating surface.
As the preparation method of above-mentioned composition for hard coat, do not limited especially as long as it can mix each uniform component
It is fixed, device well known to coating rocker, ball mill, kneader, mixer etc. can be used for example and prepared.
It is not particularly limited, such as can lift to above-mentioned composition for hard coat is coated on the method on Mght-transmitting base material
Spin-coating method, infusion process, spray-on process, die coating method, stick coating method, rolling method, meniscus coating method, flexible printing method, silk-screen printing out
Method well known to method, drop coating (bead coater) method etc..
After being coated with composition for hard coat with above-mentioned any method, in order to make the dried coating film to be formed, transmitted
To the region being heated, dried coating film is set to evaporate solvent with various well known methods.Here, can be by opposite to solvent
Evaporation rate, solid component concentration, coating fluid temperature, drying temperature, the wind speed of dry wind, drying time, arid region it is molten
Agent gas concentration etc. is selected to adjust the distribution of the agglutination body of inorganic oxide particle.
Particularly, by selection drying condition come adjust the agglutination body of inorganic oxide particle distribution method by
In simplicity and it is preferred that.Specific drying temperature is preferably 30~120 DEG C, and dry wind speed is preferably 0.2~50m/s, passes through progress
The drying process of above once or twice appropriate adjustment in the range, can be by the agglutination body of inorganic oxide particle
Distribution is adjusted to desired state.
Also, the illuminating method of ionizing ray when as by curing of coating after above-mentioned drying, it can be cited for example that making
With the method for the light sources such as ultrahigh pressure mercury lamp, high-pressure sodium lamp, low pressure mercury lamp, carbon arc lamp, biuret light fluorescent lamp, metal halide lamp.
Also, as the wavelength of ultraviolet light, the wave band of 190nm~380nm can be used.As the specific of electronic radial source
Example, can enumerate croft-Wa Erdun type, Vandegrift (バ Application デ グ ラ Off ト)
Type, resonance transformer type, insulating core transformer typ or linear type, rummy (ダ イ Na ミ ト ロ Application) type, high-frequency type etc. it is various
Electron ray accelerator.
Also, it can reduce the image from surrounding from optical laminate of the invention to mirror, improve the aspect of transmitance
It sets out, preferably above-mentioned optical functional layer is the structure that low-index layer is laminated on above-mentioned hard conating.
It should be noted that, as optical functional layer, having on above-mentioned hard conating upper in optical laminate of the invention
In the case where stating low-index layer, need to form above-mentioned specific concaveconvex shape on the surface of the low-index layer.
Above-mentioned low-index layer is anti-on the surface of optical laminate from external light (such as fluorescent lamp, natural light etc.)
Play the role of reducing the layer of its reflectivity when penetrating.
Above-mentioned low-index layer is preferably by the resin 1) containing low-refraction particles such as silica, magnesium fluorides, 2) conduct
The fluorine resin of low refractive index resin, 3) fluorine resin containing silica or magnesium fluoride, 4) silica, magnesium fluoride etc. are low
Any one of film of refractive index substance etc. is constituted.For the resin other than fluorine resin, can be used above-mentioned hard with composition
The same resin of the adhesive resin of coating.
Also, above-mentioned silica is preferably hollow silica particles, and such hollow silica particles can benefit
It is made of manufacturing method that being recorded in such as embodiment of Japanese Unexamined Patent Publication 2005-099778 bulletin.
These low-index layers preferably its refractive index is 1.45 or less, particularly 1.42 or less.
Also, the thickness of low-index layer is not limited, is usually suitable for that setting is in the range of 30nm~1 μm or so
It can.
Also, above-mentioned low-index layer can be obtained effect with single layer, but for the lower minimum reflectivity of adjustment or more
The purpose of high minimum reflectivity, can also be appropriately arranged with 2 layers or more of low-index layer.The low folding of 2 layers of above-mentioned setting or more
In the case where penetrating rate layer, the refractive index and thickness of preferably each low-index layer are had differences.
As above-mentioned fluorine resin, can be used at least molecule containing the polymerizable compound of fluorine atom or its polymerization
Object.Polymerizable compound is not particularly limited, preferably for example with cured functional group, heat cure by ionizing ray effect
The group of solidification reactivities such as polar group compound.And it is also possible to have both the chemical combination of these reactive groups simultaneously
Object.Relative to the polymerizable compound, so-called polymer is completely with out there is reactive group as described above etc..
As the polymerizable compound with above-mentioned functional group cured by ionizing ray, can be widely used
Fluorochemical monomer with ethylenic bond unsaturated bond.More specifically, fluoroolefins (such as vinyl fluoride, inclined difluoro can be enumerated
Ethylene, tetrafluoroethene, hexafluoropropene, perfluorobutadiene, perfluor -2,2- dimethyl -1,3- dioxole etc.).As
Compound with (methyl) acryloxy has 2,2,2- trifluoroethyl (methyl) acrylate, 2,2,3,3,3- five fluorine third
Base (methyl) acrylate, 2- (perfluoro butyl) ethyl (methyl) acrylate, 2- (perfluoro hexyl) ethyl (methyl) acrylic acid
Ester, 2- (perfluoro capryl) ethyl (methyl) acrylate, 2- (perfluoro decyl) ethyl (methyl) acrylate, α-trifluoromethyl third
With (methyl) acrylate compounds of fluorine atom in the molecule of e pioic acid methyl ester, α-trifluoromethyl acrylate ethyl ester etc；Point
In son have at least 3 fluorine atoms of band carbon atom number be 1~14 fluoro-alkyl, fluoro naphthenic base or fluorianted alkylene, with
And fluorinated polyfunctional (methyl) acrylate compounds of at least two (methyl) acryloxy etc..
As the polar group of above-mentioned heat cure, preferably the hydrogen bond such as hydroxyl, carboxyl, amino, epoxy group forms group.
These groups are also excellent with the compatibility of the inorganic ultra micron such as silica not only with the excellent adhesion of film.As having
The polymerizable compound of Thermocurable polar group, it can be cited for example that 4- vinyl fluoride-perfluoroalkyl vinyl ether copolymer；Fluorine
Ethylene-hydrocarbon system vinyl ether co-polymer；Each resins such as epoxy, polyurethane, cellulose, phenolic aldehyde (Off ェ ノ ー Le), polyimides
Fluorine richness object etc..As the above-mentioned effect having both by ionizing ray, the polar group of cured functional group and heat cure is poly-
Conjunction property compound can enumerate the partially and fully fluoro-alkyl of acrylic or methacrylic acid, alkenyl, aryl esters, complete
Fully or partially fluorinated vinyl ethers, complete or partial fluorinated vinyl esters, complete or partial fluorinated vinyl ketone etc..
Also, as fluorine resin, it can be cited for example that following resin.
Fluorine-containing (methyl) acrylate chemical combination containing the polymerizable compound with above-mentioned ionizing ray curative group
The monomer of at least one of object or the polymer of monomer mixture；At least the one of above-mentioned fluorine-containing (methyl) acrylate compounds
Kind and (methyl) methyl acrylate, (methyl) ethyl acrylate, (methyl) propyl acrylate, (methyl) butyl acrylate, (first
Base) copolymer of (methyl) acrylate compounds without containing fluorine atom in molecule as 2-ethylhexyl acrylate；Fluorine
Ethylene, vinylidene fluoride, trifluoro-ethylene, chlorotrifluoroethylene, 3,3,3- trifluoro propene, the chloro- 3,3,3- trifluoro propene of 1,1,2- tri-,
Homopolymer or copolymer of fluorochemical monomer as hexafluoropropene etc..Also it can be used in these copolymers containing silicone composition
Vinylidene fluoride copolymer containing silicone.As silicone composition in this case, (poly-) dimethyl siloxane, (poly-) can be enumerated
Di-ethyl siloxane, (poly-) methyl phenyl siloxane, alkyl-modified (poly-) dimethyl siloxane, contains (poly-) diphenyl siloxane
Azo group (poly-) dimethyl siloxane, phenymethyl silicone, alkyl aralkyl modified silicone, fluorosilicone, gathers dimethyl silscone
Ether modified silicone, aliphatic ester modified silicone, methyl hydrogen silicone, siliceous silane alcohol base silicone, silicone containing alkoxy, silicon containing phenolic group
Ketone, acrylic modified silicone, acrylic acid modified silicone, amino modified silicone, carboxyl acid modified silicone, carbinol-modified silicone,
Epoxy-modified silicone, sulfhydryl modified silicone, fluorine richness silicone, polyether modified silicone etc..Wherein, preferably there is dimethyl siloxane
Structure.
Further, the non-polymer or polymer being made of compound below are also used as fluorine resin.That is, making
At least there is 1 amino, hydroxyl, carboxyl etc in fluorochemical and molecule at least one isocyanate group in molecule
The compound of the functional group reacted with isocyanate group react obtained compound；Make fluorine-containing polyether glycol, contain
The fluorine-containing polyalcohol of fluothane polylol, fluorine-containing polyester polyol, fluorine-containing 6-caprolactone modified polyalcohol etc with have isocyanide
The compound of perester radical reacts obtained compound etc..
Also, it can also be mixed together in above-mentioned hard conating with the above-mentioned polymerizable compound with fluorine atom, polymer
Record each adhesive resin come using.Furthermore it is possible to be suitable for use for making the cured curing agent such as reactive group；In order to
It improves coating or assigns the various additives of soil resistance, solvent.
In the formation of above-mentioned low-index layer, the viscous of composition for low refractive index layer made of above-mentioned material will be preferably added
Degree is set as can be obtained the range of 0.5~5mPas (25 DEG C) (preferably 0.7~3mPas (25 DEG C)) of preferred coating.
So as to realize the excellent anti-reflecting layer of luminous ray, it is capable of forming uniform and not crawling film, and energy
Enough form the especially excellent low-index layer of adaptation.
The solidification means of resin can in above-mentioned hard conating features described it is identical.It is sharp for curing process
In the case where with heating means, addition is for example generated free radicals by heating preferably in fluorine resin composition causes polymerization
The thermal polymerization of the polymerization of property compound.
Thickness (nm) d of low-index layerAPreferably satisfy following formula (1):
dA=m λ/(4nA) (1)
(in above-mentioned formula,
nAIndicate the refractive index of low-index layer,
M indicates positive odd number, preferably indicates 1,
λ is wavelength, preferably the value of the range of 480~580nm).
Also, in the present invention, from the aspect of antiradar reflectivity, preferably low-index layer meets following formula (2):
120<nAdA<145 (2)。
The preferred total light transmittance of optical laminate of the invention is 90% or more.If less than 90%, will be of the invention
Optical laminate install to the surface of image display device in the case where, it is possible to color reprodubility and visibility can be damaged.
Above-mentioned total light transmittance is more preferably 91% or more.
It should be noted that above-mentioned total light transmittance can be by using haze meter (color technical research institute system in village
It makes, product model；HM-150 it) utilizes and is measured based on the method for JIS K-7361.
Also, the preferred mist degree of optical laminate of the invention is less than 1%.If degradation in contrast etc. sends out this more than 1%
Visibility when bright optical laminate is set to image display surface may reduce.Preferably 0.5% hereinafter, further excellent
It is selected as 0.3% or less.Above-mentioned mist degree can (color technical research institute manufactures in village, product model by using haze meter；HM-
150) it utilizes and is measured based on the method for JIS K-7136.
Also, optical laminate of the invention preferably penetrate image boldness under 0.125mm light comb (comb) for 75%~
95% and under 2.0mm light comb be 95% or more.If penetrating image boldness less than 75% under 0.125mm light comb, show
Image distinctiveness when image is impaired, and image quality is possible to be deteriorated.If more than 95%, it is likely that can not suitably prevent interference item
Line.Under more preferable 0.125mm light comb is 80%~90% through image boldness.If also, penetrating figure under 2.0mm light comb
As vividness is less than 95%, then the distinctiveness of image is impaired, and it is possible to due to outer light diffusing reflection and generate gonorrhoea sense.
It is above-mentioned (SUGATEST (to be write as property analyzer) by using image definition analyzer through image boldness
INSTRUMENTS manufacture, product model；ICM-1T) using based on JIS K-7105 as the method for the penetrant method of vividness come
Measurement.
The preferred contrast ratio of optical laminate of the invention is 80% or more, more preferably 90% or more.If less than 80%,
When optical laminate of the invention being then installed on display surface, darkroom contrast is deteriorated, and may damage visibility.It needs
Illustrate, the above-mentioned contrast ratio in this specification is the value measured by the following method.
That is, using the device for being equipped with diffusing panel on cold-cathode tube light source as back light unit, measurement sample and 2 are used
Polarizing film (Samsung society manufactures AMN-3244TP) is set to outmost surface, the polarizing film set on parallel Nico with by the measurement sample
The brightness L of the light passed through when earmaxDivided by the brightness L of the light passed through when being set to cross Nicolsmin, with obtained value (Lmax/
Lmin) spend as a comparison, contrast (L when using with sample as optical laminate (Mght-transmitting base material+hard conating etc.)1) divided by sample
Contrast (L when product are Mght-transmitting base material2) obtained value (L1/L2(%) spends ratio as a comparison for) × 100.
It should be noted that the measurement of above-mentioned brightness carries out under darkroom.In the measurement of above-mentioned brightness, chroma-luminance is used
Meter (Tuo Pu Kang She manufactures BM-5A), is set as 1 ° for the measurement angle of color luminance meter, is surveyed with the visual field φ 5mm on sample
It is fixed.Also, the light quantity of backlight is set so that when 2 polarizing films being set to parallel Nicolle in the state of being not provided with sample
Brightness be 3600cd/m2。
It, can be by light transmission in the case that above-mentioned optical functional layer is hard conating for optical laminate of the invention
Property substrate on use such as composition for hard coat containing inorganic oxide particle, the monomer component of adhesive resin and solvent
It is manufactured to form hard conating.Also, above-mentioned optical functional layer is to be laminated with low-index layer on above-mentioned hard conating
It, can be by using such as list containing inorganic oxide particle, adhesive resin on Mght-transmitting base material in the case where structure
The composition for hard coat of body ingredient and solvent after forming hard conating, is being applied firmly using above-mentioned composition for low refractive index layer
Low-index layer is formed on layer, thus manufactures optical laminate of the invention.
About the forming method of above-mentioned composition for hard coat and hard conating, composition for low refractive index layer and low-refraction
The forming method of layer can enumerate material similar to the above, method.
For optical laminate of the invention, can by by optical laminate of the invention with the optical laminate with
There are the face of hard conating back to face be set on the surface of polarizer polarizing film be made.Such polarizing film is also this hair
It is one of bright.
Above-mentioned polarizer is not particularly limited, the polyvinyl alcohol after being dyed and stretched with iodine etc. can be used for example
Film, polyvinyl formal film, polyvinyl acetal film, vinyl-vinyl acetate copolymer system saponification film etc..Above-mentioned polarization
In the lamination process of element and optical laminate of the invention, preferably Mght-transmitting base material (tri acetyl cellulose membrane) is saponified
Processing.By saponification process, cementability becomes well, can also obtain antistatic effect.
The invention further relates to have image display device made of above-mentioned optical laminate or above-mentioned polarizing film.
Above-mentioned image display device can be LCD, PDP, FED, ELD (organic EL, inorganic EL), CRT, tablet computer, touching
Touch the image display devices such as screen, Electronic Paper.
LCD as above-mentioned typical example is by having permeability display body and from the above-mentioned permeability display body of back side illuminaton
Light supply apparatus forms.It is to form this on the surface of the permeability display body in the case that image display device of the invention is LCD
Made of the optical laminate of invention or polarizing film of the invention.
In the case that the present invention is the liquid crystal display device with above-mentioned optical laminate, the light source of light supply apparatus is from optics
It is irradiated on the downside of laminated body.It should be noted that can between liquid crystal display element and polarizing film insertion phase difference plate.
Cement layer is arranged in each interlayer that can according to need in the liquid crystal display device.
As above-mentioned image display device PDP by have back glass substrate (surface is formed with electrode) and with the table
Surface glass substrate it is opposite and between enclose discharge gas and the back glass substrate that configures (surface is formed with electrode and small
Slot, the interior luminescent coating for forming red, green, blue of slot) it forms.In the case that image display device of the invention is PDP, and upper
State the device on the surface or the front plate (glass substrate or ilm substrate) of back glass substrate with above-mentioned optical laminate.
For above-mentioned image display device, it can be and be vapor-deposited with irradiative vulcanization when applying voltage on the glass substrate
Zinc, diamines substance, that is, illuminator, the ELD device that the voltage for being applied to substrate is controlled to be shown, or can be with
It is to convert electrical signals to the image display devices such as light, the CRT for producing the visible image of human eye.In this case, above-mentioned
The outmost surface of such each display device or the surface of the front plate have above-mentioned optical laminate.
Image display device of the invention can be used in any case television set, computer, Electronic Paper, touch screen,
The display of the displays such as tablet computer.It is contour can be used for particularly suitablely CRT, liquid crystal display panel, PDP, ELD, FED, touch screen
The surface of precise image display.
Invention effect
Optical laminate of the invention is due to that can not generate gonorrhoea sense, sufficiently inhibit dry with above-mentioned composition
The filming for realizing hard conating while the generation of striped and curling is related to, can prevent manufacturing cost from increasing.
Therefore, optical laminate of the invention can be suitably used for CRT display (CRT), liquid crystal display
Device (LCD), plasma scope (PDP), electroluminescent display (ELD), Field Emission Display (FED), Electronic Paper etc..
Detailed description of the invention
Fig. 1 is the explanatory diagram (Kosaka Laboratory Ltd.'s system) of the measuring method of θ a.
Specific embodiment
Illustrate the contents of the present invention by following embodiments, but the contents of the present invention are not limited to these embodiments to solve
It releases.
(embodiment 1)
Prepare Mght-transmitting base material (60 μm of triacetyl cellulose resin films of thickness, the manufacture of Fujiphoto society, TD60UL), at this
It is coated with following shown composition for hard coat formed on the single side of Mght-transmitting base material, forms film.Next, for formation
Film, after dry air 15 seconds of 70 DEG C of flow rate of 0.2m/s, and then with 70 DEG C of the flow rate of 10m/s of drying
It air 30 seconds, makes it dry, thus evaporates the solvent in film, use ultraviolet lamp (Fusion UV
The manufacture of Systems Japan society, light source H pipe), ultraviolet light is irradiated so that accumulation at nitrogen atmosphere (oxygen concentration 200ppm or less)
Light quantity is 100mJ/cm2, make curing of coating, the hard conating of 4 μ m-thicks (when solidification) be consequently formed, the optical layer of embodiment 1 is made
Stack.
(composition for hard coat)
Fumed silica (octyl silane treatment；Average grain diameter 12nm, NIPPON AEROSIL society manufacture)
1 mass parts
Pentaerythritol tetraacrylate (PETTA) (product name: PETA, DaicelSciTech society manufacture)
60 mass parts
Urethane acrylate (product name: UV1700B, Japan synthesize chemical society's manufacture)
40 mass parts
Irgacure 184 (manufacture of BASF Japan society)
5 mass parts
Polyether modified silicone (TSF4460, the manufacture of Momentive Performance Materials company)
0.025 mass parts
Toluene
105 mass parts
Isopropanol
30 mass parts
Cyclohexanone
15 mass parts
It should be noted that fumed silica is by utilizing the silane compound with octyl (for example, octyl silicon
Alkane) silanol group is substituted by octyl silicyl and has carried out the silica of silicic acid anhydride.
(embodiment 2)
Other than the combined amount of fumed silica is set as 1.5 mass parts, hard painting is prepared similarly to Example 1
Layer composition makes the optics stacking of embodiment 2 other than using the composition for hard coat similarly to Example 1
Body.
(embodiment 3)
Other than the combined amount of fumed silica is set as 0.5 mass parts, hard painting is prepared similarly to Example 1
Layer composition makes the optics stacking of embodiment 3 other than using the composition for hard coat similarly to Example 1
Body.
(embodiment 4)
Other than the combined amount of fumed silica is set as 2.5 mass parts, hard painting is prepared similarly to Example 1
Layer composition makes the optics stacking of embodiment 4 other than using the composition for hard coat similarly to Example 1
Body.
(embodiment 5)
Prepare Mght-transmitting base material (60 μm of triacetyl cellulose resin films of thickness, the manufacture of Fujiphoto society, TD60UL), at this
It is coated with following shown composition for hard coat formed on the single side of Mght-transmitting base material, forms film.Next, for formation
Film, after dry air 15 seconds of 70 DEG C of flow rate of 0.2m/s, and then with 70 DEG C of the flow rate of 10m/s of drying
It air 30 seconds, makes it dry, thus evaporates the solvent in film, use ultraviolet lamp (Fusion UV
The manufacture of Systems Japan society, light source H pipe), ultraviolet light is irradiated so that accumulation at nitrogen atmosphere (oxygen concentration 200ppm or less)
Light quantity is 50mJ/cm2, make curing of coating, the hard conating of 4 μ m-thicks (when solidification) be consequently formed.
(composition for hard coat)
Fumed silica (octyl silane treatment；Average grain diameter 12nm, NIPPON AEROSIL society manufacture)
1 mass parts
Pentaerythritol tetraacrylate (PETTA) (product name: PETA, DaicelSciTech society manufacture)
60 mass parts
Urethane acrylate (product name: UV1700B, Japan synthesize chemical society's manufacture)
40 mass parts
Irgacure 184 (manufacture of BASF Japan society)
5 mass parts
Polyether modified silicone (TSF4460, the manufacture of Momentive Performance Materials company)
0.025 mass parts
Toluene
105 mass parts
Isopropanol
30 mass parts
Cyclohexanone
15 mass parts
It should be noted that fumed silica is by utilizing the silane compound with octyl (for example, octyl silicon
Alkane) silanol group is substituted by octyl silicyl and has carried out the silica of silicic acid anhydride.
Next, being coated with the composition for low refractive index layer of following compositions on the surface of the hard conating of formation so that after dry
The film thickness of (40 DEG C × 1 minute) be 0.1 μm, using ultraviolet lamp (Fusion UV Systems Japan society manufacture,
Light source H pipe), ultraviolet light irradiation is carried out so that accumulated light is 100mJ/cm at nitrogen atmosphere (oxygen concentration 200ppm or less)2,
It is allowed to be formed by curing low-index layer, produces the optical laminate of embodiment 5.
(composition for low refractive index layer)
Hollow silica particles (the solid component of the silicon dioxide microparticle: 20 mass %, solution；Methyl iso-butyl ketone (MIBK),
Average grain diameter: 50nm)
40 mass parts
Pentaerythritol triacrylate (PETA) (manufacture of DaicelSciTech society)
10 mass parts
Polymerization initiator (Irgacure 127；BASF Japan society manufacture)
0.35 mass parts
Modified silicon oil (X22164E；Chemical industry society manufacture)
0.5 mass parts
MIBK
320 mass parts
PGMEA
161 mass parts
(embodiment 6)
Other than the combined amount of fumed silica is set as 1.5 mass parts, hard painting is prepared similarly to Example 5
Layer composition makes the optics stacking of embodiment 6 other than using the composition for hard coat similarly to Example 5
Body.
(embodiment 7)
Other than the combined amount of fumed silica is set as 0.5 mass parts, hard painting is prepared similarly to Example 5
Layer composition makes the optics stacking of embodiment 7 other than using the composition for hard coat similarly to Example 5
Body.
(embodiment 8)
Other than the combined amount of fumed silica is set as 2.5 mass parts, hard painting is prepared similarly to Example 5
Layer composition makes the optics stacking of embodiment 8 other than using the composition for hard coat similarly to Example 5
Body.
(comparative example 1)
Other than not mixed fumed silica, composition for hard coat is prepared similarly to Example 1, in addition to making
Other than the composition for hard coat, the optical laminate of comparison example 1 similarly to Example 1.
(comparative example 2)
Other than using following shown composition for hard coat formed, it is coated with similarly to Example 1, is formed and applied
Film.Next, for the film of formation, after dry air 15 seconds of 70 DEG C of flow rate of 0.2m/s, and then with 10m/s
Dry air 30 seconds of 70 DEG C of flow rate, make it dry, thus evaporate the solvent in film, irradiated using ultraviolet light
Device (manufacture of Fusion UV Systems Japan society, light source H pipe), shines at nitrogen atmosphere (oxygen concentration 200ppm or less)
Ultraviolet light is penetrated so that accumulated light is 100mJ/cm2, make curing of coating, the hard conating of 10 μ m-thicks (when solidification) be consequently formed, make
The optical laminate of example of making comparisons 2.
(composition for hard coat)
Pentaerythritol triacrylate (PETA) (product name: PET30, manufactured by Japan Chemical Drug Society)
100 mass parts
Irgacure 184 (manufacture of BASF Japan society)
5 mass parts
Polyether modified silicone (TSF4460, the manufacture of Momentive Performance Materials company)
0.025 mass parts
Methyl ethyl ketone (MEK)
80 mass parts
Methyl iso-butyl ketone (MIBK) (MIBK)
35 mass parts
(comparative example 3)
In addition to addition organic fine particles (hydrophilicity-imparting treatment acrylic-styrene copolymer particle, 2.0 μm of average grain diameter, refraction
Rate 1.55, the manufacture of ponding finished industrial society) other than 3 mass parts, composition for hard coat is prepared similarly to Example 1, is removed
Using other than the composition for hard coat, the optical laminate of comparison example 3 similarly to Example 1.
(comparative example 4)
In addition to addition organic fine particles (hydrophilicity-imparting treatment acrylic-styrene copolymer particle, 2.0 μm of average grain diameter, refraction
Rate 1.515, the manufacture of ponding finished industrial society) other than 1.5 mass parts, composition for hard coat is prepared similarly to Example 1,
Other than using the composition for hard coat, the optical laminate of comparison example 4 similarly to Example 1.
(comparative example 5)
Other than the combined amount of fumed silica is set as 4 mass parts, hard conating is prepared similarly to Example 1
With composition, other than using the composition for hard coat, the optical laminate of comparison example 5 similarly to Example 1.
(comparative example 6)
Other than not mixed fumed silica, composition for hard coat is prepared similarly to Example 5, in addition to making
Other than the composition for hard coat, the optical laminate of comparison example 6 similarly to Example 5.
(comparative example 7)
Other than using following shown composition for hard coat formed, it is coated with similarly to Example 5, is formed and applied
Film.Next, for the film of formation, after dry air 15 seconds of 70 DEG C of flow rate of 0.2m/s, and then with 10m/s
Dry air 30 seconds of 70 DEG C of flow rate, make it dry, thus evaporate the solvent in film, irradiated using ultraviolet light
Device (manufacture of Fusion UV Systems Japan society, light source H pipe), shines at nitrogen atmosphere (oxygen concentration 200ppm or less)
Ultraviolet light is penetrated so that accumulated light is 50mJ/cm2, make curing of coating, the hard conating of 10 μ m-thicks (when solidification) be consequently formed, thereafter
Low-index layer is set similarly to Example 5, produces the optical laminate of comparative example 7.
(composition for hard coat)
Pentaerythritol triacrylate (PETA) (product name: PET30, manufactured by Japan Chemical Drug Society)
100 mass parts
Irgacure 184 (manufacture of BASF Japan society)
5 mass parts
Polyether modified silicone (TSF4460, the manufacture of Momentive Performance Materials company)
0.025 mass parts
Methyl ethyl ketone (MEK)
80 mass parts
Methyl iso-butyl ketone (MIBK) (MIBK)
35 mass parts
(comparative example 8)
In addition to addition organic fine particles (hydrophilicity-imparting treatment acrylic-styrene copolymer particle, 2.0 μm of average grain diameter, refraction
Rate 1.55, the manufacture of ponding finished industrial society) other than 3 mass parts, composition for hard coat is prepared similarly to Example 5, is removed
Using other than the composition for hard coat, the optical laminate of comparison example 8 similarly to Example 5.
(comparative example 9)
In addition to addition organic fine particles (hydrophilicity-imparting treatment acrylic-styrene copolymer particle, 2.0 μm of average grain diameter, refraction
Rate 1.515, the manufacture of ponding finished industrial society) other than 1.5 mass parts, composition for hard coat is prepared similarly to Example 5,
Other than using the composition for hard coat, the optical laminate of comparison example 9 similarly to Example 5.
(comparative example 10)
Other than the combined amount of fumed silica is set as 4 mass parts, hard conating is prepared similarly to Example 5
With composition, other than using the composition for hard coat, the optics stacking of comparison example 10 similarly to Example 5
Body.
Following projects are evaluated to the optical laminate of obtained embodiment and comparative example.
Whole results are listed in table 1.
(average slope angle (θ a) of bump, the concave-convex degree of bias (Sk), concave-convex arithmetic average roughness (Ra))
Surface roughness measurement device: SE-3400/ Kosaka Laboratory Ltd. system is used, according to JIS B 0601-
1994, and roughness curve, measurement θ a, Sk and Ra are measured by condition below.It should be noted that the degree of bias (Sk) in table 1
Indicate measured value.
(1) contact pilotage of surface roughness detecting element:
Model/SE2555N (2 μ contact pilotage), Kosaka Laboratory Ltd.'s system
(2 μm/apex angle of front end radius of curvature: 90 degree/material: diamond)
(2) determination condition of surface roughness measurement device:
Datum length (intercepted length value (カ ッ ト オ Off value) λ c of roughness curve): 2.5mm
Evaluate length (datum length (intercepted length value λ c) × 5): 12.5mm
The movement speed of contact pilotage: 0.5mm/s
Standby length: (intercepted length value λ c) × 2
Longitudinal multiple: 2000 times
Lateral multiple: 10 times
It should be noted that usually intercepted length value uses 0.8mm more, but intercepted length value is set as in the present invention
2.5mm being determined.
In addition, calculating λ a based on λ a=2 π × (Ra/tan (θ a)) formula.
(mist degree)
According to JIS K7136, using haze meter HM-150 (color technical research institute manufactures in village) to obtained optics
The mist degree of laminated body is measured.
(penetrating image boldness)
According to JIS K7105, using image definition analyzer ICM-1T (SUGA TEST INSTRUMENTS manufacture),
By through measurement under the 0.125mm light comb and 2.0mm light comb of obtained optical laminate through image boldness into
Row measurement.
(interference fringe)
The face opposite with hard conating of each optical laminate embodiment and comparative example obtained by transparent adhesive is (thoroughly
Photosensitiveness substrate surface) it is attached to black acrylic (acrylic acid) plate for preventing backside reflection, by hard conating or low-index layer
Sodium vapor lamp is irradiated towards each optical laminate, is visually observed, by the generation of benchmark evaluation presence of interference striped below.
◎: the absolutely not generation of interference fringe.
Zero: though there is the generation of several interference fringes, belonging to the level that there is no problem.
×: produce interference fringe.
(gonorrhoea sense)
The face opposite with hard conating of each optical laminate embodiment and comparative example obtained by transparent adhesive is (thoroughly
Photosensitiveness substrate surface) it is attached on black acrylic (acrylic acid) plate, gonorrhoea is observed under desk lamp (3 wavelength fluorescent fluorescent tube) in darkroom
Sense, is evaluated by benchmark below.
Zero: not observing white.
×: observe white.
(curling)
For the amount of crimp of optical laminate, the optical laminate of embodiment and comparative example is cut into 10cm × 10cm,
The sample strip cut is placed in horizontal platform (plane), the distance between the endpoint of hard conating is measured, in this case should be away from
From average value (mm) carry out following evaluation.
Zero: 80mm or more
×: less than 80mm
Table 1
As shown in table 1, the optical laminate of embodiment is good in the whole of interference fringe, gonorrhoea sense, curling is evaluated.
On the other hand, for the optical laminate of comparative example 1 and 6, due to being averaged for hard conating or low-refraction layer surface
Inclination angle is too small, could not prevent interference fringe.For the optical laminate of comparative example 2 and 7, used as composition for hard coat
The MEK for being swollen Mght-transmitting base material, and then increase coating weight so that hard conating film thickness is 10 μm, it thus reduces and is applied from hard
The reflected light of layer and the interface of Mght-transmitting base material, to prevent interference fringe, but is wanting in the evaluation of curling.For comparing
The optical laminate of example 3~5 and 8~10, one or both of average slope angle or the degree of bias are excessive, are wanting in gonorrhoea sense.
Industrial applicibility
Optical laminate of the invention can suitably be applied to CRT display (CRT), liquid crystal display
(LCD), plasma scope (PDP), electroluminescent display (ELD), Field Emission Display (FED), touch screen, electronics
Paper, tablet computer etc..
Claims (17)
1. a kind of optical laminate is the optical laminate on a face of Mght-transmitting base material with optical functional layer,
It is characterized in that,
The surface of the optical functional layer has concaveconvex shape, for the concaveconvex shape, if the average slope angle of bump be θ a,
When the concave-convex degree of bias is Sk, the absolute value and θ a of the Sk meets following formula:
0.01°≦θa≦0.10°
| Sk |≤0.5,
The optical functional layer contains the inorganic oxide particle that average primary particle diameter is 1nm~100nm, passes through the inorganic oxide
The agglutination body of object particle forms the concaveconvex shape on the surface of the optical functional layer,
The optical laminate is 75%~95% under 0.125mm light comb through image boldness and is under 2.0mm light comb
95% or more.
2. optical laminate as described in claim 1, wherein for the concaveconvex shape of optical functional layer, if concave-convex arithmetic
When mean roughness is Ra, meet following formula:
0.02μm≦Ra≦0.10μm。
3. optical laminate as claimed in claim 2, wherein for the concaveconvex shape of optical functional layer, with λ a=2 π ×
The mean wavelength λ a that (Ra/tan (θ a)) is indicated meets following formula:
200μm≦λa≦800μm。
4. optical laminate as claimed in claim 1,2 or 3, wherein optical functional layer is hard conating.
5. optical laminate as claimed in claim 1,2 or 3, wherein optical functional layer is to be laminated with low folding on hard conating
Penetrate the structure of rate layer.
6. optical laminate as claimed in claim 4, wherein hard conating contains inorganic oxide particle and adhesive resin.
7. optical laminate as claimed in claim 5, wherein hard conating contains inorganic oxide particle and adhesive resin.
8. optical laminate as claimed in claim 6, wherein inorganic oxide particle is the inorganic oxide after silicic acid anhydride
Object particle.
9. optical laminate as claimed in claim 7, wherein inorganic oxide particle is the inorganic oxide after silicic acid anhydride
Object particle.
10. optical laminate as claimed in claim 6, wherein inorganic oxide particle forms agglutination body and is included in hard apply
In layer, the average grain diameter of the agglutination body is 100nm~2.0 μm.
11. optical laminate as claimed in claim 7, wherein inorganic oxide particle forms agglutination body and is included in hard apply
In layer, the average grain diameter of the agglutination body is 100nm~2.0 μm.
12. optical laminate as claimed in claim 8, wherein inorganic oxide particle forms agglutination body and is included in hard apply
In layer, the average grain diameter of the agglutination body is 100nm~2.0 μm.
13. optical laminate as claimed in claim 9, wherein inorganic oxide particle forms agglutination body and is included in hard apply
In layer, the average grain diameter of the agglutination body is 100nm~2.0 μm.
14. a kind of polarizing film, which is characterized in that it is polarizing film made of having polarizer,
Have described in claim 1,2,3,4,5,6,7,8,9,10,11,12 or 13 on the polarizer surface of the polarizing film
Optical laminate.
15. a kind of image display device, which is characterized in that it have claim 1,2,3,4,5,6,7,8,9,10,11,12 or
Polarizing film described in optical laminate described in 13 or claim 14.
16. a kind of visibility ameliorative way, the method use optical laminate, which is in Mght-transmitting base material
With the optical laminate of optical functional layer on one face, which is characterized in that
The surface of the optical functional layer has concaveconvex shape, for the concaveconvex shape, if the average slope angle of bump be θ a,
When the concave-convex degree of bias is Sk, the absolute value and θ a of the Sk meets following formula:
0.01°≦θa≦0.10°
| Sk |≤0.5,
The optical functional layer contains the inorganic oxide particle that average primary particle diameter is 1nm~100nm, passes through the inorganic oxide
The agglutination body of object particle forms the concaveconvex shape on the surface of the optical functional layer,
The optical laminate is 75%~95% under 0.125mm light comb through image boldness and is under 2.0mm light comb
95% or more.
17. the suppressing method of a kind of interference fringe, curling and gonorrhoea sense, the method use optical laminate, optics stackings
Body is the optical laminate on a face of Mght-transmitting base material with optical functional layer, which is characterized in that
The surface of the optical functional layer has concaveconvex shape, for the concaveconvex shape, if the average slope angle of bump be θ a,
When the concave-convex degree of bias is Sk, the absolute value and θ a of the Sk meets following formula:
0.01°≦θa≦0.10°
| Sk |≤0.5,
The optical functional layer contains the inorganic oxide particle that average primary particle diameter is 1nm~100nm, passes through the inorganic oxide
The agglutination body of object particle forms the concaveconvex shape on the surface of the optical functional layer,
The optical laminate is 75%~95% under 0.125mm light comb through image boldness and is under 2.0mm light comb
95% or more.
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| JP2012029708A JP6035764B2 (en) | 2012-02-14 | 2012-02-14 | Optical laminate, polarizing plate, and image display device |
| JPJP2012-029708 | 2012-02-14 | ||
| CN201310049923.1A CN103245982B (en) | 2012-02-14 | 2013-02-07 | Optical layered body, polarizer and image display device |
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| KR (1) | KR101992496B1 (en) |
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| TWI628457B (en) * | 2014-04-17 | 2018-07-01 | 日商大日本印刷股份有限公司 | Anti-glare film, polarizing plate, liquid crystal panel, and image display device |
| EP3425448B1 (en) * | 2016-03-04 | 2020-07-08 | Mitsubishi Gas Chemical Company, Inc. | Front plate for onboard lcd device |
| JP7061429B2 (en) * | 2016-10-03 | 2022-04-28 | 株式会社きもと | A hard coat film for adhering an inorganic compound layer, and a transparent conductive film and a touch panel using the hard coat film. |
| US11550080B2 (en) | 2016-10-07 | 2023-01-10 | Nippon Paint Automotive Coatings Co., Ltd. | Optical laminated member |
| CN107918167B (en) * | 2016-10-07 | 2021-09-21 | Ａｇｃ株式会社 | Substrate with antiglare film, liquid composition for forming antiglare film, and method for producing substrate with antiglare film |
| KR102231719B1 (en) * | 2019-11-13 | 2021-03-23 | 에스케이씨 주식회사 | Film for bonding and light transmitting layered product comprising of the same |
| JP2021148938A (en) * | 2020-03-18 | 2021-09-27 | 住友化学株式会社 | Optical film and flexible display device |
| CN112379131A (en) * | 2020-11-02 | 2021-02-19 | 中国科学技术大学 | Hybrid waveguide, preparation method of optical microscope probe and optical microscope probe |
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| JP3703133B2 (en) * | 2001-03-12 | 2005-10-05 | 日東電工株式会社 | Light diffusing sheet and optical element |
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| JP4135364B2 (en) | 2002-01-16 | 2008-08-20 | 凸版印刷株式会社 | Manufacturing method of optical film |
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| JP5028806B2 (en) * | 2006-01-24 | 2012-09-19 | 凸版印刷株式会社 | Antiglare materials and displays |
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| CN101506691A (en) * | 2006-08-18 | 2009-08-12 | 大日本印刷株式会社 | Method for manufacturing optical laminate, manufacturing equipment, optical laminate, polarizing plate, and image display apparatus |
| JP2009069427A (en) * | 2007-09-12 | 2009-04-02 | Dainippon Printing Co Ltd | Optical laminate, polarizing plate, and image display device |
| JP2009104076A (en) * | 2007-10-25 | 2009-05-14 | Dainippon Printing Co Ltd | Optical laminate, polarizing plate, and image display device |
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| TW201346316A (en) | 2013-11-16 |
| CN103245982A (en) | 2013-08-14 |
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| TWI618942B (en) | 2018-03-21 |
| KR101992496B1 (en) | 2019-06-24 |
| CN103245982B (en) | 2017-04-26 |
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| JP6035764B2 (en) | 2016-11-30 |
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