CN105842771A - Polarizing plate and image display device comprising the same - Google Patents
Polarizing plate and image display device comprising the same Download PDFInfo
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- CN105842771A CN105842771A CN201510990077.2A CN201510990077A CN105842771A CN 105842771 A CN105842771 A CN 105842771A CN 201510990077 A CN201510990077 A CN 201510990077A CN 105842771 A CN105842771 A CN 105842771A
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- mentioned
- polaroid
- polarizer
- resin bed
- film
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Classifications
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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
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
Abstract
The invention relates to a polarizing plate and an image display device comprising the same. The polarizing plate comprises a polarizer and a resin layer formed on one surface of the polarizer. The tensile strength of the polarizer in the direction(TD direction) that is vertical to the tensile direction is 3 to 5 N/mm at 5 DEG C and 1 to 2 N/mm at 80 DEG C, light characteristic and durability are excellent.
Description
Technical field
The present invention relates to realize the polaroid of thin type structure and light characteristic and excellent in te pins of durability
And there is its image display device.
Background technology
Various along with liquid crystal indicator (LCD), plasm display device (PDP) etc.
The development of image display device, for the image that the color reproduction providing high brightness is excellent, is carried out
For providing the research of the polaroid with high degree of polarization and absorbance.
Usually, polaroid has the polyethenol series that will dye with dichroic dye or iodine etc.
(Polyvinyl alcohol；PVA) polarizer and for protecting the fiber on two sides of above-mentioned polarizer
Element (Triacetyl cellulose；TAC) it is the basic structure of protecting film stacking, according to display dress
Put, it is possible in said protection film, further laminated phase-difference plate, compensation film for angular field of view and brightness carry
High film etc..
The polyethenol series polarizer of the polaroid so constituted, due to the most in the extreme
, therefore there is change in size in instability, and unstable for moisture, TAC protecting film due to
Hydroscopicity and moisture permeability are big, and therefore have that polarization function in the environment of high temperature and humidity reduces asks
Topic.
Therefore, in order to provide the polaroid of excellent performance, it is desirable to durability and the improvement of light characteristic.
For display device can be suppressed in KR published patent 2014-7023811 publication
The polaroid of the generation of color fluctuation during Display panel is disclosed, but is shown without for front
The replacement scheme of the problem stated.
Prior art literature
Patent documentation
Patent documentation 1: KR published patent 2014-7023811 publication
Summary of the invention
The problem that invention is to be solved
It is an object of the invention to provide the polaroid of light characteristic and excellent in te pins of durability.
It is an object of the invention to provide the image display device with above-mentioned polaroid.
For solving the means of problem
1. polaroid, its comprise polarizer and above-mentioned polarizer at least one side formed resin bed,
Hot strength on the direction vertical with draw direction (TD direction) of above-mentioned polarizer is at 5 DEG C
Under be 3～5N/mm, be 1～2N/mm at 80 DEG C.
2. according to the polaroid of above-mentioned project 1, wherein, the hot strength of above-mentioned resin bed is at 5 DEG C
Under be 4～6N/mm, be 2～4N/mm at 80 DEG C.
3. according to the polaroid of above-mentioned project 1, wherein, above-mentioned resin bed is coating.
4. according to the polaroid of above-mentioned project 1, wherein, above-mentioned resin bed is by comprising polymerism chemical combination
The compositions of thing, polymerization initiator and solvent is formed.
5. according to the polaroid of above-mentioned project 4, wherein, above-mentioned composition, relative to compositions
Whole 100 weight portions, comprise above-mentioned polymerizable compound 1～69 weight portion, above-mentioned polymerization is drawn
Send out agent 1～25 weight portion and above-mentioned solvent 30～80 weight portion.
6. according to the polaroid of above-mentioned project 1, wherein, the another side at polarizer has protecting film.
7. image display device, it has the polaroid described in any one of above-mentioned project 1～6.
The effect of invention
The polaroid of the present invention not only light characteristic is excellent, and thermostability, hardness and adaptation etc.
Improved, excellent in te pins of durability.
Additionally, in the case of resin bed contained in the polaroid of the present invention is formed by coating, can
With slimming.
Accompanying drawing explanation
Fig. 1 is the figure of the concrete example being schematically indicated the polarizer that the present invention relates to.
Detailed description of the invention
The present invention relates to polaroid and have its image display device, this polaroid comprises and is polarized
Mirror and above-mentioned polarizer at least one side formed resin bed, above-mentioned polarizer with stretching side
Hot strength on vertical direction (TD direction) is 3～5N/mm at 5 DEG C, at 80 DEG C
Under be 1～2N/mm, light characteristic and excellent in te pins of durability.
Below to the detailed description of the invention.
Polaroid
As it was previously stated, not yet propose polaroid to maintain excellent light characteristic and hot strength simultaneously
Solution.
Therefore, the present invention provides polarizer and at least one side formation resin bed at above-mentioned polarizer
Polaroid, make above-mentioned polarizer have the stretching of specific scope under certain temperature conditions
Intensity, solves the problems referred to above.Specifically, the direction vertical with draw direction of above-mentioned polarizer
Hot strength on (TD direction) is 3～5N/mm at 5 DEG C, at 80 DEG C be 1～
2N/mm。
Hot strength on the direction vertical with draw direction (TD direction) of polarizer is at 5 DEG C
Under less than 3N/mm in the case of, thermal shock (such as, is repeated exposure to-20 DEG C and 60 DEG C
Temperature) time, there is the problem producing PVA crackle in the stretching direction, more than the feelings of 5N/mm
Under condition, there is the problem that degree of polarization declines.
Additionally, at 80 DEG C less than 1N/mm in the case of, thermal shock (such as, be repeated exposure to-
20 DEG C and the temperature of 60 DEG C) time, there is the problem producing PVA crackle, more than 2N/mm's
In the case of, there is the problem that degree of polarization declines.
Hot strength on the TD direction of polarizer can use method as known in the art to adjust
Joint, such as, can by the manufacture that changes polarizer time use as cross-linking agent boric acid concentration,
The draw ratios of polarizer etc. regulate, but are not necessarily limited to these.
Additionally, according to a specific example of the present invention, in order to improve the durability of polaroid, above-mentioned
The hot strength of resin bed can be 4～6N/mm at 5 DEG C, at 80 DEG C can be 2～
4N/mm.The hot strength of the above-mentioned resin bed at 5 DEG C and 80 DEG C comprises feelings within the above range
Under condition, owing to above-mentioned resin bed more effectively protects polarizer, therefore there is the durable of polaroid
The effect that property improves further.
The hot strength of above-mentioned resin bed can by change resin bed formation compositions composition and
Content regulates, specifically, it is possible to by changing polymerism macromolecule, polymerizable monomer (spy
Not, polyfunctional monomer) etc. kind and content etc. regulate, but be not necessarily limited to these.
Polarizer
Polarizer can be polarizer formation film usually used in this field is carried out swelling,
The product dyeing, cross-link, stretch, wash and being dried and obtain.
The polarizer that the present invention relates to can be by have polarizer formation film is carried out swelling,
In this area that the operation in the stage dye, cross-link, stretch, wash, being dried etc. manufactures generally
The polarizer used.
As long as polarizer formation film can use dichroic substance, i.e., the film of iodine staining, to it
Kind is not particularly limited, and such as, can enumerate polyvinyl alcohol film, polyethylene through processed
Alcohol film, polyvinyl alcohol film through desalination acid treatment, polyethylene terephthalate film, ethylene-
Vinyl acetate co-polymer film, ethylene vinyl alcohol copolymer film, cellulose membrane, these part
The film etc. of ground saponification.In these, excellent from the effect of the homogeneity not only improving degree of polarization in face
Different, and the dyeing affinity also excellence for iodine is set out, preferably polyethylene alcohol mesentery.
Above-mentioned polyvinyl alcohol resin is by obtaining the resin saponification of polyvinyl acetate system.Make
For the example of polyvinyl acetate system resin, except the poly-vinegar of the homopolymer as vinylacetate
Beyond vinyl acetate, vinylacetate and can be with the copolymer of other monomers of its copolymerization can be enumerated
Deng.
As long as it is that use generally in the art with other vinyl acetate copolymerized monomers and be
In the range of the purpose of the present invention, then the most unrestricted, as concrete example, can enumerate not
Saturated carboxylic acid class, olefines, vinyl ethers, unsaturated sulfonic acid class etc..
Above-mentioned polyvinyl alcohol resin can use the product of modification, as specific example, can arrange
Lift by the modified polyvinyl formal of aldehydes or polyvinyl acetal etc..
The saponification degree of polyvinyl alcohol resin can be 85～100 moles of %, it is preferable that can be 98～
100 moles of %, the degree of polymerization of above-mentioned polyvinyl alcohol resin can be 1,000～10,000, excellent
Selection of land, the degree of polymerization can be 1,500～5,000.
The thickness of polarizer formation film is not particularly limited, for example, it is possible to be 10～150 μ
m。
Resin bed
The present invention is by comprising resin bed at least one side of above-mentioned polarizer, thus protection is polarized
Mirror, specifically, it is possible to prevent the microcrack of above-mentioned polarizer from occurring.
The resin bed that the present invention relates to can be arranged as film shape or coating, thin for polaroid
Type structuring, is more preferably made up of coating.
Fig. 1 is to comprise resin bed about according to a specific example of the present invention in the one side of polarizer
The figure of polarizer.
To the composition of above-mentioned resin bed, there is no particular restriction, such as, can comprise polymerizable compound,
Polymerization initiator and solvent.
Above-mentioned polymerizable compound can comprise at least in polymerism macromolecule and polymerizable monomer
Kind.
It is that as long as above-mentioned polymerism macromolecule uses generally in the art and without departing from the present invention
Purpose, then to its kind unrestricted, for example, it may be acrylic resin, asphalt mixtures modified by epoxy resin
Fat, polyurethane resin, carbamate (methyl) acrylate polymer, polyester resin,
Polyether resin, alkyd resin, spiral shell acetal resin, polybutadiene, the many olefine resins of polymercaptan,
Epoxy (methyl) acrylate oligomer and carbamate (methyl) acrylate oligomers
Thing etc., it is preferable that can be polyethyleneglycol diacrylate.These can be used alone or by 2
Plant use mixed above.
Above-mentioned polymerizable monomer can be at least one in monofunctional monomer and polyfunctional monomer,
In the case of particularly resin bed compositions comprises polyfunctional monomer, the improvement effect of hot strength
Greatly.
It is that as long as above-mentioned polymerizable monomer uses generally in the art and without departing from the present invention's
Purpose, then to its kind unrestricted, as concrete example, can enumerate neopentyl glycol acrylate,
1,6-hexanediol (methyl) acrylate, propylene glycol two (methyl) acrylate, 2,2'-ethylenedioxybis(ethanol).
Two (methyl) acrylate, dipropylene glycol two (methyl) acrylate, trimethylolpropane
Three (methyl) acrylate, trimethylolethane trimethacrylate (methyl) acrylate, 1,2,4-rings
Hexane four (methyl) acrylate (1,2,4-Star Network ロ ヘ キ サ ソ テ ト ラ (メ
タ) ア Network リ レ mono-ト), five glycerol three (methyl) acrylate, tetramethylolmethane four (first
Base) acrylate, tetramethylolmethane three (methyl) acrylate, dipentaerythritol three (methyl)
Acrylate, dipentaerythritol five (methyl) acrylate, dipentaerythritol four (methyl)
Acrylate, dipentaerythritol six (methyl) acrylate, tripentaerythritol three (methyl)
Acrylate, tripentaerythritol six or three (methyl) acrylate, double (2-hydroxyethyl) isocyanide
Urea acid esters two (methyl) acrylate, (methyl) Hydroxyethyl Acrylate, (methyl) third
Olefin(e) acid hydroxy propyl ester, (methyl) hydroxy butyl acrylate, (methyl) Isooctyl acrylate monomer,
(methyl) isodecyl acrylate, (methyl) stearyl acrylate ester, (methyl) acrylic acid tetrahydrochysene
Bran ester, (methyl) acrylate, (methyl) isobornyl acrylate, bis-phenol
A-glycol diacrylate etc..These can be used singly or two or more kinds mixed.
As the commercially available product of above-mentioned polymerizable monomer, Miwon Specialty Chemical can be enumerated
SC2153, MU9800, SC2100, SC2152 etc. of society.
To the content of above-mentioned polymerizable compound, there is no particular restriction, it is preferable that relative to combination
Whole 100 weight portions of thing, can contain with the amount of 1～69 weight portions.At above-mentioned content model
In enclosing, it is possible to prevent hardness from declining and adaptation reduces.
Above-mentioned polymerization initiator is used for making the inside of resin bed and the solidification on surface be sufficiently carried out,
As long as it is that use generally in the art and without departing from the purpose of the present invention, then to its kind also
Unrestrictedly, Photoepolymerizationinitiater initiater etc. can preferably be enumerated.These can be used alone or by 2
Plant use mixed above.
As above-mentioned Photoepolymerizationinitiater initiater, as long as use generally in the art, then to its kind
There is no particular restriction for class, as concrete example, can enumerate 1-hydroxycyclohexylphenylketone, diphenyl
Ketone benzil dimethyl ketal, 1-Phenylethanone. dimethyl ketal, p-dimethyl amine benzoate (p
-ヅ メ チ Le ア ミ Application benzoic acid エ ス テ Le), 2-hydroxy-2-methyl-1-phenyl-1-ketone,
4-hydroxyl ring phenyl ketone (4-ヒ De ロ キ Star Star Network ロ Off エ ニ Le ケ ト ソ), dimethoxy
-2-phenyl acetophenone, anthraquinone, 2-amino anthraquinones, fluorenes, triphenylamine, carbazole, benzophenone,
P-phenyl benzophenone, 3-methyl acetophenone, 4,4-dimethoxy-acetophenone, 4,4-diaminourea
Benzophenone, benzoin and 2-ethyl thiaxanthone etc., these can each be used alone or
Two or more is used in mixed way by person.
To the content of above-mentioned polymerization initiator, there is no particular restriction, it is preferable that relative to compositions
Whole 100 weight portions, can contain with the amount of 1～25 weight portions.
As above-mentioned solvent, as long as that use generally in the art and without departing from the present invention's
Purpose, then the most unrestricted to its kind, as concrete example, methanol, ethanol, isopropyl can be enumerated
The alcohol systems such as alcohol, butanol, methyl cellosolve, ethyl cellosolve；Methyl ethyl ketone, methyl butyl
The ketone systems such as ketone, methyl iso-butyl ketone (MIBK), metacetone, dipropyl ketone, Ketohexamethylene；Hexane, heptan
The alkane such as alkane, octane system；The benzene series etc. such as benzene,toluene,xylene.These can be used alone
Or two or more is used in mixed way.
To the content of above-mentioned solvent, there is no particular restriction, it is preferable that whole relative to compositions
100 weight portions, can contain with the amount of 30～80 weight portions.
As required, above-mentioned resin bed compositions can also comprise additive.If above-mentioned additive
Be use generally in the art and in the range of without departing from the purpose of the present invention, then to it
Kind is the most unrestricted, as concrete example, can enumerate light stabilizer, UV absorbent etc..
That as long as the resin bed that the present invention relates to uses generally in the art and be without departing from this
In the range of the purpose of invention, then to its forming method, there is no particular restriction.Specifically, it is possible to
The method described in embodiment is used to form resin bed.
Protecting film
The present invention can also have protecting film at the another side of above-mentioned polarizer as required.
The kind of said protection film, as long as the transparency, mechanical strength, heat stability, moisture hide
The excellence such as covering property, isotropism, then there is no particular restriction, is selected from for instance, it is possible to use to comprise
Acrylic resin film, cellulose-based resin molding, polyolefin-based resins film and polyester based resin film
In the various transparent resin films of at least one.
As the concrete example of said protection film, poly-(methyl) acrylic acid methyl ester. can be enumerated, gather
The acrylic resin film such as (methyl) ethyl acrylate；Polyethylene terephthalate, poly-between
PET, PEN, polybutylene terephthalate (PBT) etc.
Polyester based resin film；The cellulose-based resin molding such as diacetyl cellulose, triacetyl cellulose；Poly-
Ethylene, polypropylene, there is ring system or the polyolefin of norborene structure, ethylene-propylene copolymer
The polyolefin-based resins films etc. such as thing, but it is not limited to these.
Thickness for said protection film is not particularly limited, and can be 10～200 μm, preferably
It is 10～150 μm.In the case of the thickness of protecting film is 10～200 μm, at polarizer
In the case of two sides stacking polarizer protecting film, each protecting film can have and is same to each other or different to each other
Thickness.
During by the polarizer that the present invention relates to and protective layer or protecting film stacking, can make as required
Use bonding agent.
The kind of above-mentioned bonding agent, as long as that use generally in the art and be without departing from this
In the range of the purpose of invention, then there is no particular restriction, specifically, can enumerate isocyanates system
Bonding agent, polyethenol series bonding agent, gelatin system bonding agent, vinyl polymerization system latex type
Bonding agent, water-soluble polyester system bonding agent etc..Aqueous type bonding agent or non-aqueous type bonding agent are all
Applicable, but more preferably aqueous type bonding agent, specifically, consolidating of 0.5～60 weight % can be comprised
Shape is divided.
For bonding agent, can coat in above-mentioned polarizer or protective layer, protecting film at least
One, bonding after carry out dried, form the adhesive linkage comprising drying layer of coating.For
Polarizer and the bonding process of protective layer, it is possible to use roller laminator etc. to carry out.To adhesive linkage
Thickness there is no particular restriction, specifically, can be 0.1～5 μm.
The polaroid of the present invention, can comprise optical functional layer as required.Above-mentioned optical functional layer
Also can be contained in image display device as other independent layer, it is possible to as in this area
The light such as normally used phase retardation film, antireflection film, antistatic film, anti-soil film, anti-fingerprint film
Functional membrane uses.
Image display device
Additionally, the present invention provides the image display device with above-mentioned polaroid.
The polaroid that the present invention relates to can apply to whole common image display devices, example
As, it is possible to constitute the polaroid comprised being laminated with pressure sensitive adhesive layer with liquid crystal cells at least
The liquid crystal indicator of the liquid crystal panel that one side engages.
Between the polaroid that the present invention relates to and above-mentioned pressure sensitive adhesive layer, for both glue
Connect enhancing etc., it is possible to make other pressure sensitive adhesive layer, anchoring layer etc. mediate.
The image display device of the present invention, in addition to above-mentioned polaroid, can further include ability
Known composition in territory.
Below in order to the present invention is specifically described, enumerate embodiment and explain.
Embodiment 1
The manufacture of polarizer
By saponification degree be more than 99.9%, the transparent non-stretched polyvinyl alcohol film of thick 75 μm
(VF-PS, KURARAY society) impregnated in the water (deionized water) of 30 DEG C and make it swelling
After, impregnated in the dyeing of containing iodine 3.5mmol/L and potassium iodide 2 weight portion 30 DEG C with water-soluble
Liquid dyes.
It follows that the temperature making crosslinking groove is 54 DEG C, impregnated in containing potassium iodide 2 weight portion,
The crosslinking aqueous solution of boric acid 3.2 weight portion make it cross-link.Manufacturing process is carried out stretch so that
Total accumulation draw ratio becomes 5.4 times so that the thickness of polyvinyl alcohol film becomes 25 μm.
After having cross-linked, by polyvinyl alcohol film being applied the tension force of 850N/m, at 70 DEG C
Drying oven is dried 4 minutes, thus manufactures polarizer.
The manufacture of resin bed
By trimethylolpropane trimethacrylate 2.8 weight portion, bisphenol-A-ethylene glycol bisthioglycolate acrylic acid
Ester 3.8 weight portion, polyethyleneglycol diacrylate 13.4 weight portion, by molten to isopropanol and methyl
Organic solvent 64 weight portion that fine agent mixes with the ratio of 1: 1,1-hydroxycyclohexylphenylketone 3
Weight portion and SC2153 (Miwon Specialty Chemical society) 1.0 weight portions mixing.
Then, the mixture of modulation adds a small amount of light stabilizer propylene wax and ultraviolet is inhaled
Receive agent, tree lipid layer compositions.
The resin bed compositions of modulation is coated directly onto the PET transparent base that thickness is 50 μm
So that dried thickness becomes 20 μm on film, it is dried 1 minute at 70 DEG C.It follows that
Irradiated by the ultraviolet irradiation amount with 800mJ/cm2 so that it is be fully cured, thus manufacture tree
Lipid layer.
The manufacture of polaroid
In the one side of polarizer of above-mentioned manufacture by resin bed, at another side, TAC film is used viscous
Connect agent and carry out two sides lamination (lamination), manufacture polaroid.
Embodiment 2
In the manufacture of polarizer, employ beyond the boric acid concentration of 2.6, use and embodiment 1
Same method manufactures polaroid.
Embodiment 3
In the manufacture of resin bed, SC2153 is replaced to be mixed with SC2152 (Miwon
Specialty Chemical society) beyond 1.0 weight portions, use method system similarly to Example 1
Make polaroid.
Embodiment 4
In the manufacture of polarizer, employ beyond boric acid concentration 2.6 parts, use and embodiment 3
Same method has manufactured polaroid.
Embodiment 5
In the manufacture of resin bed, there is no hybrid SC 2153 (Miwon Specialty Chemical
Society) beyond 1.0 weight portions, use method similarly to Example 2 to manufacture polaroid.
Comparative example 1
The manufacture of polarizer
Except using the boric acid concentration of 3.7 weight portions, making total accumulation draw ratio is beyond 5.9 times,
Method similarly to Example 1 is used to manufacture polarizer.
The manufacture of resin bed
Except there is no hybrid SC 2153 (Miwon Specialty Chemical society) 1.0 weight portions
In addition, method similarly to Example 1 is used to manufacture resin bed.
The manufacture of polaroid
In the one side of polarizer of above-mentioned manufacture by resin bed, at another side, TAC film is utilized viscous
Connect agent and carry out two sides lamination (lamination), manufacture polaroid.
Comparative example 2
In the manufacture of polarizer, use the boric acid concentration of 3.7 weight portions, make total accumulation draw ratio
It is beyond 5.9 times, uses method similarly to Example 1 to manufacture polaroid.
Comparative example 3
In the manufacture of polarizer, use the boric acid concentration of 2.6 weight portions, make total accumulation draw ratio
It is beyond 4.4 times, uses method similarly to Example 1 to manufacture polaroid.
Comparative example 4
In the manufacture of resin bed, it is mixed with SC2152 (Miwon Specialty Chemical society
Manufacture) beyond 1.0 weight portions, use the method manufacture polaroid with comparative example 1 as.
Comparative example 5
In the manufacture of polarizer, use the boric acid concentration of 2.6 weight portions, make total accumulation draw ratio
It is 4.4 times, in the manufacture of resin bed, is mixed with SC2153 (Miwon Specialty
Chemical society) beyond 10.0 weight portions, use method manufacture polarization similarly to Example 1
Sheet.
Experimental example 1: stretching strength determination
The polarizer manufactured in embodiment and comparative example and resin bed are fabricated to horizontal 100mm, indulge
The test piece of 5mm, uses the AUTOGRAPH AG-X 1KN of SHIMAZHU society to determine
Hot strength.
For hot strength, with the speed tensile of 4mm/min, stress during fracture is surveyed altogether
After fixed 5 times, represent by its meansigma methods, the results are shown in following table.
Experimental example 2: the evaluation of degree of polarization (%)
UV, visible light light spectrometer (manufacture of V-7100, JASCO society) is used to measure manufacture
The degree of polarization of polarizer, the results are shown in table 1 below.
Experimental example 3: thermal shock evaluation
After polaroid coating contact adhesive, after cutting out with the size of horizontal 10cm, vertical 10cm,
Cutting face is ground, engages with coning glass (U one ニ ソ グ グ ラ ス), will be at-20 DEG C
And the circulation standing 30 minutes respectively at 60 DEG C has carried out 100 times.The results are shown in following
In table 1.
<evaluation criterion>
Zero: outward appearance is good
×: there is PVA crackle
Experimental example 4: pencil hardness
Use pencil scratching tester (PHT, SUKBO science society of Korea S manufacture), apply
The load of 500g, measures pencil hardness, and pencil uses Rhizoma Sparganii 2H, has been repeated 5 times.Will
The results are shown in table 1 below.
<evaluation criterion>
Zero: cut is less than 1
△: cut is 2～3
×: cut is more than 4
Experimental example 5: adaptation
Coated face at film is vertical with mm interval and horizontal draws 11 straight lines respectively, is just making 100
After tetragon, adhesive tape (manufacture of its nation of CT-24, Japanese rice (ニ チ バ ソ) society) is utilized to carry out
3 disbonded tests, after calculating according to following mathematical expression 1, represent by its meansigma methods.By its result
It is shown in table 1 below.
[numerical expression 1]
Adaptation=n/100
[in formula, n represents the number of the tetragon not being stripped.]
[table 1]
Confirm with reference to above-mentioned table 1: belong to the embodiment of the scope of the present invention compared with comparative example, combine
Close ground degree of polarization, thermal shock evaluation, hardness, excellent adhesion.
But, it is thus identified that at 5 DEG C, resin bed hot strength departs from the enforcement of preferred numerical range
The pencil hardness of example 5 slightly reduces.
The explanation of reference
1: resin bed
2: polarizer
Claims (7)
1. polaroid, its comprise polarizer and above-mentioned polarizer at least one side formed resin bed,
Hot strength on the direction vertical with draw direction (TD direction) of above-mentioned polarizer is at 5 DEG C
Under be 3～5N/mm, be 1～2N/mm at 80 DEG C.
Polaroid the most according to claim 1, wherein, the hot strength of above-mentioned resin bed exists
It is 4～6N/mm at 5 DEG C, is 2～4N/mm at 80 DEG C.
Polaroid the most according to claim 1, wherein, above-mentioned resin bed is coating.
Polaroid the most according to claim 1, wherein, above-mentioned resin bed is by comprising polymerism
The compositions of compound, polymerization initiator and solvent is formed.
Polaroid the most according to claim 4, wherein, above-mentioned composition, relative to combination
Whole 100 weight portions of thing, comprise above-mentioned polymerizable compound 1～69 weight portion, above-mentioned poly-
Close initiator 1～25 weight portion and above-mentioned solvent 30～80 weight portion.
Polaroid the most according to claim 1, wherein, the another side at polarizer has guarantor
Cuticula.
7. image display device, it has the polaroid described in any one of claim 1～6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2015-0014768 | 2015-01-30 | ||
| KR1020150014768A KR20160093885A (en) | 2015-01-30 | 2015-01-30 | Polarizing plate and image display device comprising the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105842771A true CN105842771A (en) | 2016-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510990077.2A Pending CN105842771A (en) | 2015-01-30 | 2015-12-24 | Polarizing plate and image display device comprising the same |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2016143058A (en) |
| KR (1) | KR20160093885A (en) |
| CN (1) | CN105842771A (en) |
| TW (1) | TW201627691A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005128097A (en) * | 2003-10-21 | 2005-05-19 | Sekisui Chem Co Ltd | Polarizing plate |
| CN101023122A (en) * | 2004-07-01 | 2007-08-22 | 富士胶片株式会社 | Optical cellulose acylate film, polarizing plate and liquid crystal display |
| CN101310200A (en) * | 2005-11-18 | 2008-11-19 | 日东电工株式会社 | Polarizer protection film, polarizing plate and image display |
| CN101568860A (en) * | 2006-12-27 | 2009-10-28 | 日东电工株式会社 | Polarizer protection film, polarizing plate and image display |
| CN102200607A (en) * | 2010-03-26 | 2011-09-28 | 住友化学株式会社 | Polarizer |
| TW201428011A (en) * | 2012-12-11 | 2014-07-16 | Toagosei Co Ltd | Active-energy-ray-curable composition for forming optical film, optical film, and polarizing plate |
| CN104136507A (en) * | 2012-02-10 | 2014-11-05 | 日东电工株式会社 | Protective film |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007029788A1 (en) * | 2005-09-09 | 2007-03-15 | Nitto Denko Corporation | Polarizing plate with optical compensation layer, liquid crystal panel using polarizing plate with optical compensation layer, and image display unit |
| JP2008275926A (en) * | 2007-04-27 | 2008-11-13 | Nitto Denko Corp | Method for manufacturing polarizer, polarizer, polarizing plate, optical film, and image display device |
| JPWO2013115178A1 (en) | 2012-01-30 | 2015-05-11 | コニカミノルタ株式会社 | Polarizing plate and display device using the same |
| JP5888040B2 (en) * | 2012-03-23 | 2016-03-16 | コニカミノルタ株式会社 | Polarizing plate protective film and method for producing the same, and polarizing plate and display device using the same |
| JP6094193B2 (en) * | 2012-12-11 | 2017-03-15 | 東亞合成株式会社 | Active energy ray-curable composition for forming optical film or sheet, optical film or sheet, and polarizing plate |
-
2015
- 2015-01-30 KR KR1020150014768A patent/KR20160093885A/en not_active Application Discontinuation
- 2015-12-10 TW TW104141517A patent/TW201627691A/en unknown
- 2015-12-24 CN CN201510990077.2A patent/CN105842771A/en active Pending
-
2016
- 2016-01-18 JP JP2016007103A patent/JP2016143058A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005128097A (en) * | 2003-10-21 | 2005-05-19 | Sekisui Chem Co Ltd | Polarizing plate |
| CN101023122A (en) * | 2004-07-01 | 2007-08-22 | 富士胶片株式会社 | Optical cellulose acylate film, polarizing plate and liquid crystal display |
| CN101310200A (en) * | 2005-11-18 | 2008-11-19 | 日东电工株式会社 | Polarizer protection film, polarizing plate and image display |
| CN101568860A (en) * | 2006-12-27 | 2009-10-28 | 日东电工株式会社 | Polarizer protection film, polarizing plate and image display |
| CN102200607A (en) * | 2010-03-26 | 2011-09-28 | 住友化学株式会社 | Polarizer |
| CN104136507A (en) * | 2012-02-10 | 2014-11-05 | 日东电工株式会社 | Protective film |
| TW201428011A (en) * | 2012-12-11 | 2014-07-16 | Toagosei Co Ltd | Active-energy-ray-curable composition for forming optical film, optical film, and polarizing plate |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20160093885A (en) | 2016-08-09 |
| JP2016143058A (en) | 2016-08-08 |
| TW201627691A (en) | 2016-08-01 |
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