TW200925228A - Adhesive composition for optical film, adhesive layer for optical film and method for producing the same, adhesive optical film, and image display - Google Patents

Abstract

A pressure-sensitive adhesive composition for an optical film of the present invention comprises 100 parts by weight of a (meth)acrylic polymer comprising 45 to 99.99% by weight of an alkyl (meth)acrylate monomer unit and 0.01 to 2% by weight of a tertiary amino group-containing monomer unit; and 0.01 to 2 parts by weight of a peroxide as a crosslinking agent. The pressure-sensitive adhesive composition can form an pressure-sensitive adhesive layer that has satisfactory reworkability such that optical films can be easily peeled from liquid crystal panels with no adhesive residue and also has satisfactory processability such that it can be worked without pressure-sensitive adhesive fouling or dropout.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical adhesive composition which is required to be transparent, and an adhesive layer for an optical film formed by the adhesive composition and a method for producing the same. Further, the present invention relates to an adhesive type optical pickup in which the above-mentioned adhesive layer for an optical film is formed on at least one side of an optical enamel. Further, the present invention relates to an image display device such as a liquid crystal display device or an organic EL display device using the above-described adhesive optical film. As the optical film, a polarizing plate, a phase difference plate, an optical compensation film, a brightness improving flaw, and the like can be used. [Prior Art] In the case of a liquid crystal display or the like, it is indispensable to arrange a polarizing element on both sides of the liquid crystal cell 7L in view of the image forming method, and a polarizing plate is usually attached. Further, in addition to the polarizing plate on the liquid crystal panel, various optical 7L members can be used to improve the display quality of the display. For example, a phase difference plate for preventing coloration, a viewing angle widening film for improving the viewing angle of the liquid crystal display, and a brightness improving film for improving the contrast of the display can be used. These films are collectively referred to as optical films. When the above optical film is attached to a liquid crystal cell, an adhesive is usually used. Further, in order to reduce the optical loss, the optical film and the liquid crystal cell or the optical film are usually adhered to each other using an adhesive. In this case, there is an advantage that the drying step is not required when the optical film is fixed, and therefore it is generally used for an adhesive optical film in which an adhesive is provided as an adhesive layer on one side of the optical film. Further, a spacer is usually attached to the adhesive layer (de- 135469.doc 200925228 mold film). The necessary characteristics required for the astigmatism are as follows: when the optical film is attached to the liquid helium several days earlier, the optical film can be used even when the wrong bonding position or the foreign matter is embedded in the bonding one> The liquid crystal panel is peeled off and the liquid crystal unit is reused. In the shai peeling step, re-peelability (secondary workability) in which the optical film does not remain in the slurry and is easily peeled off from the liquid crystal panel is required. In particular, in addition to the panel manufacturing step in the past, the use of a thin liquid crystal panel using a glass that has been subjected to etching treatment has increased, and the secondary workability and processability of the optical crucible from the thin liquid crystal panel become difficult. . The above-mentioned optical adhesive usually forms an adhesive layer on an optical film, rolls it into a roll shape, and performs a punching force d, and the optical adhesive is crosslinked with an acrylic polymer as a base polymer. Agent. As the crosslinking agent, for example, an oleic acid vinegar compound can be mentioned, but it takes a long time for the formation (aging) of the oleic acid vinegar compound to the adhesive layer until the transportation takes a long time. If the above-mentioned aging is not performed, the straightness of (4) ❹ 4 φ from ' decreases the workability due to dirt or defects of the adhesive. In addition, in the old, there will be bad things such as scratches. As described above, the optical adhesive is required to have workability which can be applied without causing dirt or defects of the adhesive. Further, as a crosslinking agent used in the light (iv) adhesive, a peroxide is proposed. The crosslinking of the peroxide is used in conjunction with the hardening step after drying to end the crosslinking, thus having the advantage of not requiring aging time. However, if peroxide is used, the peeling force to the spacer is significantly increased, for the panel manufacturer, When the spacer (release film) is peeled off, there is a problem that the peeling becomes heavy and the production line 135469.doc 200925228 is stopped. In recent years, as the thickness of the optical film has progressed, it has been required to have light peelability with respect to the spacer and to be excellent in workability as compared with the prior art. Further, it is required that the above-mentioned adhesive does not cause an inconvenience caused by the adhesive for an endurance test such as heating and humidification which is usually performed as an environmental acceleration test. In the method of eliminating the problem of secondary workability of a liquid crystal panel, a method of containing a plasticizer or an oligomer component in an acrylic polymer which is a base polymer of an acrylic pressure-sensitive adhesive has been proposed (Patent Literature! However, the acrylic adhesive has not been able to satisfy the secondary workability with respect to the above-described thin liquid crystal panel, the workability as an adhesive optical film, and workability with respect to a spacer. In addition to the above, as the acrylic adhesive used in the optical film, a peroxide is added to the acrylic polymer (Patent Document 2); and as a monomer component of the acrylic polymer, In addition to the alkyl (meth) acrylate, a monomer having a hydroxyl group in the molecule and a monomer having a functional group such as a carboxyl group, a guanamine group, or an amine group in the molecule is used (Patent Documents 3 and 4); The monomer component of the acrylic polymer, in addition to the alkyl (meth)acrylate, is also a nitrogen-containing monomer such as a monomer containing a quinone imine group or a monomer containing a guanamine group, and further used. Oxide and isocyanate compound (Patent Document 5). However, the acrylic adhesives disclosed in these patent documents are those which can improve the initial durability, but do not satisfy the long-term durability', and do not sufficiently satisfy the secondary workability, and are excellent in workability as an adhesive optical film. The workability of the spacer. Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. [Problem to be Solved by the Invention] An object of the present invention is to provide an optical adhesive for forming an adhesive layer. In the composition, the adhesive layer satisfies the secondary processability of easily peeling off the optical film from the liquid crystal panel without leaving a paste, and after the adhesive layer is formed on the optical film, the adhesive may not be produced. Processability of processing such as dirt or defects. Further, it is an object of the invention to provide an adhesive composition for an optical film which can form an adhesive layer which is excellent in workability with respect to a spacer. Further, an object of the present invention is to provide an adhesive layer formed by the above-described adhesive composition for an optical film and a method for producing the same. Further, an object of the present invention is to provide an adhesive type optical film having the adhesive layer, and to provide an image display apparatus using the above-mentioned adhesive type optical film. [Means for Solving the Problem] The inventors of the present invention have conducted intensive studies to solve the above problems, and have found the following adhesive composition for an optical film to complete the present invention. That is, the present invention relates to an adhesive composition for an optical film, which comprises a (fluorenyl)acrylic polymer and a peroxide as a crosslinking agent, the above (meth)acrylic polymer system. Containing (meth) propylene 135469.doc 200925228 acid alkyl ester 45~99.99% by weight and a tertiary amino group containing monomer 〇〇1~2 weight 1% as a monomer unit, and relative to (A 100 parts by weight of the acrylic polymer, and the peroxide is 001 to 2 parts by weight. It is preferable that the adhesive composition for an optical film contains 0.01 to 2 parts by weight of an isocyanate crosslinking agent as a crosslinking agent, based on 1 part by weight of the (meth)acrylic polymer. It is preferable that the adhesive composition for an optical film contains 1 to 2 parts by weight of a decane coupling agent, based on 100 parts by weight of the (meth)acrylic polymer. Preferably, in the above adhesive composition for an optical film, the (mercapto)acrylic polymer further contains 0.01 to 5% by weight of the carboxyl group-containing monomer and/or 0.01 to 5% by weight of the hydroxyl group-containing monomer. As a monomer unit. In the above adhesive composition for an optical film, as the monomer having a tertiary amino group, N,N-dimethylaminoethyl (meth)acrylate and/or hydrazine, hydrazine Aminopropyl (meth) acrylamide. Preferably, the (meth)acrylic polymer has a weight average molecular weight of 1,000,000 to 3,000,000 in the adhesive composition for an optical film. Further, the present invention relates to an optical adhesive layer which is formed from the above-mentioned adhesive composition for an optical film. It is preferred that the adhesive layer for the optical film has a gel fraction of 50 to 95% by weight. Further, the present invention relates to a method for producing an adhesive layer for an optical film, which comprises applying the above-mentioned adhesive composition for an optical film to a substrate at a temperature of 70 to 160. (:, the treatment is carried out at a time of 30 to 24 sec and 135 469.doc 200925228 is hardened. Further, the present invention relates to an adhesive optical film characterized in that at least one side of the optical film is formed by the above The present invention relates to an image display device using at least one of the above-mentioned adhesive optical films. [Effects of the Invention] The optical film of the present invention is adhered to the above. The composition of the composition, which is a base polymer of an adhesive, that is, a (mercapto)acrylic polymer, contains a monomer having a tertiary amino group as a monomer unit in a small proportion of 1 to 2% by weight of ruthenium. The adhesive composition for an optical film can form an adhesive layer having the following properties: it can improve workability and secondary workability, and can suppress the defect or dirt of the adhesive during processing, and even if the optical film is thinned from the thin liquid crystal. When the panel is peeled off on the liquid crystal panel using the chemically etched glass, the paste can be easily removed without leaving the paste. Moreover, the adhesive layer may not The optical film is peeled off from the liquid crystal panel. As a result, the liquid crystal panel can be effectively reused without breaking the thin optical film. The (meth)acrylic polymer is contained in a small amount. The monomer containing a tertiary amino group is used to improve the crosslinking stability of the adhesive layer after the adhesive layer is formed by crosslinking reaction with a crosslinking agent, and is used as a crosslinking agent in the above specified ratio. In the case of a peroxide, the above-mentioned crosslinking stability can be particularly improved by using a monomer having a tertiary amino group. I, as a parent compound, in addition to a peroxide, an isocyanate combination can be suitably used. Further, the decane coupling agent can be used within the above-mentioned range. Especially in the case of using an isocyanate compound or a decane coupling agent together with a peroxide, the above crosslinking stability is improved, and the second can be improved. Sub-processability and processability. Previously, an adhesive layer formed of an adhesive composition prepared with an additive such as a decane coupling agent, due to a decane coupling agent or the like as time passes. Since the adhesive layer is scattered, it is difficult to stably maintain the characteristics of the adhesive layer. With the adhesive composition of the present invention, the residual of the decane coupling agent in the adhesive layer can be increased over time, and the product characteristics are stabilized. In addition, the (meth)acrylic polymer contains a carboxyl group-containing monomer or a hydroxyl group-containing monomer as a monomer unit, thereby improving durability and further improving Secondary processing property. A (meth)acrylic polymer containing a carboxyl group-containing monomer or a hydroxyl group-containing monomer as a copolymerization component can be improved by the action of acid-base interaction or hydrogen bonding of the copolymer components. At the same time, the durability is improved, and the adhesion or the peeling of the adhesive can be suppressed under heating or humidification conditions. Further, the adhesive composition of the present invention is introduced to (A) a tertiary amine group in a acrylic acid-based polymer, using a peroxide as a crosslinking agent, thereby forming a production point and a good processability as a point of crosslinking of the peroxide. The adhesive layer can simultaneously suppress the rise of the separation of the spacer (release film). Therefore, the mold occupies the agent layer, and with respect to the interval*, even if the time Φ can be lightly peeled off the interval 16, it becomes difficult to change, and the production efficiency is further improved. In the (meth)acrylic acid polymer, the combination of the tertiary amine group and the peroxide decomposes faster, compared to the spacer and (mercapto)propyl 135469.doc •12-200925228 acid polymerization In the cross-linking reaction of the substance, crosslinking of the (fluorenyl) acrylic polymer is more preferable, whereby the peeling force against the spacer can be suppressed from increasing. [Embodiment] The adhesive composition for an optical film of the present invention is obtained by using an alkyl group of (mercapto)propane bromide of 45 to 99.99% by weight and a monomer having a tertiary amino group of 〇.〇^% by weight ( A methyl)acrylic polymer is used as the base polymer. The carbon number of the (meth)acrylic acid alkyl ester-based (meth)acrylic acid alkyl ester is from 2 to 18 carbon atoms. The base of the hospital can be any of a direct key or a branch. The average carbon number of the above-mentioned base is preferably from 2 to 14, more preferably from 3 to 12, and even more preferably from 4 to 9 c (more preferably, (meth)acrylate) The acrylate and/or methacrylate is the same as the (meth) of the present invention. Specific examples of the (meth) acrylic acid ester ester include ethyl (meth) acrylate, N-butyl methacrylate, second butyl (meth) acrylate, tert-butyl (meth) acrylate, isobutyl (meth) acrylate, n-amyl (meth) acrylate, (methyl) Isoamyl acrylate, hexyl (meth) acrylate, heptyl (meth) acrylate, isoamyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, n-octyl (meth) acrylate , isooctyl (meth)acrylate, n-decyl (meth)acrylate, isodecyl (meth)acrylate, n-decyl (meth)acrylate, isodecyl (meth)acrylate, (methyl) N-dodecyl acrylate, isomyristyl (meth) acrylate, (13) methacrylate a base ester of n-tetradecyl (meth)acrylate, stearyl (meth)acrylate, isostearyl (meth)acrylate, etc. Among them, n-butyl (meth)acrylate can be exemplified Ester, 2-ethylhexyl (meth)acrylate, etc., etc. 135469.doc -13- 200925228 may be used singly or in combination. In the present invention, the above alkyl (meth)acrylate is relative to (meth)acrylic acid. The total monomer content of the polymer is from 45 to 99 99. Preferably, 疋85~"99% by weight, more preferably 87 to 99.99% by weight, more preferably 90 to 99.99% by weight, further More preferably, it is 98 to 99% by weight. If the amount of the (meth)acrylic monomer is too small, it becomes insufficient in adhesion and is not preferable. Further, 'as a monomer having a tertiary amino group' may include a tertiary amine. a monomer having a (fluorenyl) acrylonitrile group. Preferred as a tertiary amino group, a tertiary aminoalkyl group. Examples of the tertiary amino group-containing monomer include anthracene, fluorene dialkylamine. Base-based (meth) acrylamide, (meth) acrylate, Ν 二 dialkyl amine alkyl as a 3 secondary amine Specific examples of the precursors include, for example, n,N-methylaminoethyl(meth)acrylamide, N,N-dimethylaminopropyl(meth)acrylamide, N, N-diethylaminoethyl(meth)acrylamide, N,N-ethylaminopropyl(meth)acrylamide, (mercapto)acrylic acid N,N-dimethylamine Ethyl ethyl ester, bismuth (mercapto) acrylate, fluorenyl dimethyl propyl acrylate, fluorenyl hydrazide, hydrazine-diethylaminoethyl acrylate, ν, Ν·diethylaminopropyl Acrylamide. Among the monoterpenes containing a tertiary amino group, hydrazine (mercapto) acrylate, hydrazine-dimethylaminoethyl ester and/or hydrazine, hydrazine-didecylamine are preferred. Propyl (mercapto) acrylamide. Further, even monomers containing nitrogen-containing monomers and monomers containing tertiary amine groups, such as maleic imine, fluorene-cyclohexylma Maleimide monomer such as quinone imine, Ν phenyl phenyl maleimide, Ν 曱 曱 曱 ) 醯 醯 曱 曱 曱 醯 曱 曱 曱 曱 曱 曱 曱 曱 曱 曱-6-oxyhexamethylene succinimide, fluorenyl-(fluorenyl) propylene fluorenyl-8-oxy octadecylene Amber succinimide, etc. 135469.doc 14 200925228 Amber quinone imine monomer; (mercapto) acrylamide, n, n-dimercapto (methyl) acrylamide, N, N-diethyl ( Mercapto) acrylamide, N-isopropyl (meth) acrylamide, N-hydroxymethyl (decyl) acrylamide, N-methoxyindenyl (meth) acrylamide, N- N-substituted guanamine such as butoxymethyl (meth) acrylamide

Monomer; a monomer having a secondary amine group such as (mercapto)acrylic acid tert-butylaminoethyl; diacetone (methyl) propylamine, N-vinylacetamide, N, N, · Methylene bis(indenyl) acrylamide, N-ethylene hexylamine, acryloyl morpholine, hydrazine-acrylonitrile piperidine, hydrazine-methacryl hydrazinopiperidine, Ν_ It is also difficult to improve secondary workability and processability by acrylonitrile-based pyrrolidine or the like. The monomer having a tertiary amino group is used in a proportion of 0.01 to 2% by weight based on the total amount of the monomer component forming the (meth)acrylic polymer. The proportion of the monomer having a tertiary amino group is preferably O.Wq.S% by weight, more preferably (1)% by weight, more preferably G.01 to G.5% by weight, more preferably 〇Q5~G 45 wt%, and the step-by-step is preferably 0.05 to 〇.2 wt%. If the proportion of the monomer having a tertiary amino group is less than (MH% by weight, the crosslinking stability of the adhesive layer is poor, and the secondary reinforcement and workability cannot be satisfied, and the self-durability is preferable. In addition, it is not possible to sufficiently promote cross-linking, and it is difficult to reduce the adhesive layer: the gel fraction has a high peelability to the spacer, and thus is not preferable. The other side is considered from the viewpoint of secondary workability and durability. Including three stages: = too large proportion and ^, the cohesive force of the adhesive layer containing 2% by weight or less of the controlled material is not increased. As a result of forming the above (meth)acrylic polymerization, it contains a money base. It is preferable to use it alone and/or with == high durability, etc. It is particularly preferable to use a list containing two: 135469.doc 15 200925228 as a monomer containing a carboxyl group, which can be used without particular limitation ( a methyl group having a polymerizable functional group of an unsaturated double bond such as an acryl group or a vinyl group, and having a slow-base group. Examples of the monomer having a carboxyl group are, for example, (mercapto)acrylic acid or (meth)acrylic acid carboxylate. Ester, carboxypentyl (meth)acrylate, itaconic acid, maleic acid, fumaric acid And crotonic acid, etc. Among them, (meth)acrylic acid is preferable, and acrylic acid is particularly preferable. The total amount of the monomer component forming the (fluorenyl) acrylic polymer is 0·0 1 to 5 The proportion by weight of the monomer is a carboxyl group-containing monomer, and the proportion of the carboxyl group-containing monomer is preferably 0.01 to 2% by weight, more preferably ο. μμ% by weight, still more preferably 0.05 to 0.5% by weight. It is preferable to increase the durability, and it is preferably a monomer having a carboxyl group content of 0.101% by weight or more. On the other hand, if the proportion of the monomer having a slow-base group exceeds 5 wt/〇', the adhesion is enhanced, and the peeling becomes heavy. 'The secondary processing property is not satisfied, and therefore it is not preferable. As the hydroxyl group-containing monomer, a polymerizable functional group having an unsaturated double bond such as a (fluorenyl) acryl fluorenyl group or a vinyl group can be used without particular limitation. Examples of the hydroxyl group-containing monomer include 2-hydroxyethyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, and 3-hydroxypropyl (meth)acrylate. Acrylic acid 4-butyl butylate, (meth)acrylic acid 6- hexyl ester, (meth) propylene 8-hydroxyoctyl ester, 1-hydroxyindole (meth)acrylate, (mercapto)acrylic acid 12-hydroxyalkyl (meth) acrylate such as kiwi vinegar, hydroxyethyl (decyl) acrylamide; Further, there may be mentioned (4-hydroxymethylcyclohexyl)methyl acrylate, hydrazine-hydroxymethyl (meth) acrylamide, hydrazine-hydroxy (meth) acrylamide, allyl alcohol, 2-base B. Vinyl ether, 4-hydroxybutyl vinyl ether, diethylene glycol monovinyl ether, caprolactone adduct of acrylic acid, polyethylene glycol (mercapto) acrylate 135469.doc 16 200925228 ester, (meth)acrylic acid Polypropylene glycol ester, etc. Preferably, the hydroxyalkyl (meth) acrylate is used, and is used in a ratio of 0.01 to 5% by weight based on the total amount of the monomer component forming the (meth)acrylic polymer. A monomer containing a hydroxyl group. The proportion of the hydroxyl group-containing monomer is preferably 0.01 to 2 parts by weight. /. More preferably, 〇〇1 to 丨5 wt%, more preferably 0.01 to 1 wt%, further preferably 〇〇5 to 〇5 by weight for improving durability, preferably containing 〇〇1 by weight More than % of hydroxyl-containing monomers. In particular, in the case where an isocyanate crosslinking agent is used as the crosslinking agent, in order to secure the crosslinking point of the isocyanate group, it is preferred to contain 〇. The above hydroxyl group-containing monomer. On the other hand, when the proportion of the hydroxyl group-containing monomer exceeds 5% by weight, the adhesion is enhanced, the peeling becomes heavy, and the secondary workability cannot be satisfied, which is not preferable. The monomer component forming the (meth)acrylic polymer may be used in the range of 50% by weight or less based on the total amount of the monomers, in addition to the above monomers, insofar as the object of the present invention is not impaired. Monomers other than those. The proportion of any monomer is preferably 48% by weight or less, more preferably 45% by weight or less. Examples of the optional monomer include an aromatic group-containing monomer having a polymerizable functional group of an unsaturated double bond such as a (meth)acryl fluorenyl group or an alkenyl group and having an aromatic ring. Specific examples of the aromatic ring-containing monomer include (meth) propyl acetophenoxy phenoxy acetoacetate, (meth) acrylic acid vinegar, and benzene ring hexane modified (meth) acrylate. Ester, 2-naphthylethyl (meth)acrylate, 2-(4-methoxynaphthyloxy)acetate, (meth)acrylic acid phenoxypropyl vinegar, Methyl) acrylic acid phenoxy diethylene glycol vinegar, (meth) acrylic acid thiol vinegar, (mercapto) acrylic acid phenyl vinegar, polystyrene (meth) acrylic acid vinegar 135469 .doc 200925228 and so on. Examples of the monomer other than the above include an acid anhydride group-containing monomer such as maleic anhydride or itaconic anhydride; and a stupid ethylenesulfonic acid or allylsulfonic acid ' 2 —(fluorenyl) acrylamide-2-mercapto group a sulfonic acid group-containing monomer such as propanesulfonic acid, (fluorenyl) acrylamide, propionate, (mercapto) acrylic acid propyl vinegar, (meth) propylene phthaloxy naphthalene sulfonic acid; a phosphate group-containing monomer such as ethyl ethyl acrylonitrile phosphate; a (meth)acrylic acid alkoxyalkyl ester such as (meth)acrylic acid decyloxyethyl ester or (meth)acrylic acid ethoxyethyl ester Monomers, etc. Further, a vinyl monomer such as vinyl acetate, vinyl propionate, styrene, α-mercaptostyrene or fluorene-vinyl caprolactam; or an epoxy group such as (fluorenyl) glycidyl acrylate may be used. Acrylic monomer; (mercapto) methoxyglycolate, (mercapto) methoxy propylene glycol acrylate monomer; (methyl) An acrylate monomer such as tetrahydrofurfuryl acrylate, fluoro (meth) acrylate, polydecyloxy acrylate or 2-methoxyethyl acrylate. Further, examples of the copolymerizable monomer other than the above include a sulfonium-based monomer containing a ruthenium atom. Examples of the ceramsite-based monomer include 3- propylene methoxypropyl triethoxy decane, vinyl trimethoxy decane, ethylene triethoxy decane, and 4-vinyl butyl trimethyl. Oxydecane, 4_Ethyl butyl diethoxy sulphur, 8 - ethyl octyl trimethoxy smolder, 8 - ethyl octyl triethoxy decane, 10-methyl propylene oxime Oxyfluorenyltrimethoxycarbazide, 10-propenyloxydecyltrimethoxydecane, 1〇-methylpropanoloxymethoxytrimethoxydecane, 10-propenyloxycarbonyl-3 Ethoxy stone court and so on. 135469.doc • 18- 200925228 The (meth)acrylic polymer of the present invention generally uses a polymer having a weight average molecular weight of from 100,000 to 30,000. In consideration of durability 'particularly heat resistance, it is preferred to use a polymer having a weight average molecular weight of from 150,000 to 250,000. Further better is 170,000 to 250,000, and further better is 180,000 to 2.5 million. If the weight average molecular weight is less than 15 million Å, it is considered to be poor in terms of heat resistance. In addition, if the weight average molecular weight is more than 30,000, it is not preferable in terms of adhesion and adhesion. Further, the weight average molecular weight means a value calculated by GPC (gel permeation chromatography) and calculated by polystyrene conversion. A known production method such as solution polymerization, bulk polymerization, emulsion polymerization, or various radical polymerization can be suitably selected for the production of such a (meth)acrylic polymer. Further, the obtained (meth)acrylic polymer may be any of a random copolymer block copolymer, a graft copolymer and the like. Further, in the solution polymerization, for example, ethyl acetate, toluene or the like is used as a polymerization/treat. As a specific solution polymerization example, a polymerization initiator is added under an inert gas stream such as nitrogen, usually at 50 to 70. (The reaction is carried out under the reaction conditions of about 5 to 30 hours. The polymerization initiator, chain transfer agent, emulsifier, etc. used in the radical polymerization is not particularly limited, and can be appropriately selected and used. The weight average molecular weight of the mercapto acid polymer can be controlled by the amount of the polymerization initiator, the chain transfer agent, and the reaction conditions, and the appropriate amount can be adjusted according to the type of the polymer. For example, 2,2,-azobisisobutyronitrile, 2,2, azobis(2-cyanopropenyl) dihydride, 2,2,_azo 2 [2_(5_A)么 135469.doc -19- 200925228 Imidazoline-2·yl)propane dihydrochloride, 2 disulfate, 2 π stomach/χτ, one (2-methylpropionamidine) defeated 2,2-even Nitrogen di(Ν,Ν'_二亚甲其里τ# Nitrogen [N-(2-m-based) 2 methyl and methyl, butyl hydrazine), 2,2,- even) methyl propyl脒] hydrate (Waguang pure medicine gossip, VA-G57) and other azo initiators, persulfate unloading furnace... Sulfate, diperoxydicarbonate (2_ 4 ammonium, etc. -r4 ^ - -T- ^ s 丞 基 酗), peroxydicarbonate - (Binyl butylcyclohexyl) vinegar, dibutyl carboxide, neodecanoic acid, third vinegar, third butyl valerate, butyl valerate, dilaurate, Ethylhexanoic acid (U, 3, 3_ based on axis H octing, peroxygen umino, bis(4-methyl) peroxide, benzoyl peroxide, iso-dioxide (third hexyl peroxygen) Base) cyclohexene, third butyl/known U· system initiator 'persulfate and hydrogen sulfite: combination of peroxide and sodium ascorbate. Seeking group. The redox-based initiator of the reducing agent, etc., but is not limited thereto. The initiator may be used singly or in combination of two or more kinds, as a whole, a part of the monomer, preferably a weight. 々about, preferably 〇.〇2~〇.5 parts by weight. : Two = using, for example, 2,2'-azobisisobutyronitrile as a polymerization initiator for the average molecular weight of the star (methyl) In the case of a propylene glycol-based polymer, the amount of the phase-initiating monomer in a total amount of 100 parts by weight of the polymerization initiator is 疋0.06 to 2.2 parts by weight. More preferably 〇〇8~〇175 As a chain transfer agent, for example, dodecyl mercaptan, glycidyl sulfur, thioglycolic acid, 2-mercaptoethanol, thioglycolic acid, thioglycolate ethyl 135469.doc -20- 200925228曰2,3-monopropylpropanol, etc. The chain transfer agent may be used singly or in combination of two or more kinds, and the content as a whole is about 0.1 part by weight or less based on 100 parts by weight of the total amount of the monomer components. Examples of the emulsifier used in the case of emulsion polymerization include, for example, lauryl sulfate steel, lauryl sulfate, sodium decyl benzoate, polyoxygen sulfonate, and polyoxyethylene phenyl. Key sodium sulfate and other anion. + emulsifier 'polyoxyethylene alkyl ether, polyoxyethylene yard phenyl shout, poly" vinyl phthalate, polyoxyethylene - polyoxypropylene block polymer, etc. A nonionic emulsifier or the like. These emulsifiers may be used singly or in combination of two or more. Further, as the reactive emulsifier, as an emulsifier which introduces a radical polymerizable functional group such as an acryl group or a dilute propyl group, specifically, for example, AQUALON HS 1 〇, 9η ι^τύ ι λ W HS- 20, ΚΗ-10, BC_05, BC_1〇, BC_ 2〇 (all of which are manufactured by Di-Wei Pharmaceutical Co., Ltd.), REAs〇Ap SE1 ON (made by Asahi Chemical Co., Ltd.), etc. Since the reactive emulsifier is introduced into the X polymer bond after the polymerization, the water resistance is improved. The emulsifier is preferably used in an amount of from 3 to 5 parts by weight based on 100 parts by weight of the total of the monomer components, and more preferably in terms of polymerization stability or mechanical stability. Further, the adhesive composition of the present invention contains a peroxide as a crosslinking agent. As the peroxide of the present invention, if a radical active species is generated by heating or light irradiation to crosslink the base polymer of the adhesive conjugate, it is suitable for use, considering operability or stability. Preferably, the half-life temperature is 8 (rc~16 (rc peroxide), more preferably 135469.doc 21 200925228 uses a peroxide with a one-minute half-life temperature of 90 ° c to 140 ° c. If the i-minute half-life temperature is too low, there is a two-line reaction when the coating is dried before the coating is dried, and the viscosity becomes high and becomes uncoated; on the other hand, if the temperature is too high, the crosslinking reaction is carried out. When the temperature becomes high, a side reaction occurs, and the peroxide of the final reaction remains excessively, and it is not preferable to carry out the hexalysis over time. The parent as the peroxide used in the present invention may, for example, be a peroxide. Di(2-ethylhexyl) carbonate (1 minute half-life temperature: 9 〇 6. 〇, di(4-butylidenecyclohexyl) peroxydicarbonate (1 minute half-life temperature: 92.1,), peroxidation Dicarbonate two second brewing ([ Clock half-life temperature: 92.4 C.), peroxy neodecanoic acid tert-butyl ester (1 minute half-life temperature: 103.5.), peroxypivalate, third hexyl ester, minute half-life temperature: mi:.), peroxidation Tert-butyl half-butyl pivalate temperature: U 〇. 3 ° C), long-term half-life of dilaurin peroxide: 1164 dying over two oxidative oxidative (1 minute half-life temperature: 117.4. Oxidation of 2-ethylhexanoic acid (^Hong Tetrabutyl butyl) is a half-life temperature: 124.3 ° C), bis(4-methylbenzamide) minute half-life temperature: 128.2. 〇, peroxidation Diphenyl brewing (1 minute half-life temperature: (9) generation), isobutyl isobutyrate (1 minute half-life temperature: 1361 Yiguang, Buji (third hexylperoxy) cyclohexane, minute half-life temperature : 149 2. 〇, etc. Among them, in terms of excellent self-crosslinking reaction efficiency, it is preferred to use peroxidation. Di(4-tert-butylcyclohexyl) dicarbonate is called minute half-life temperature 92.1 C), peroxidation February laurel (1 minute half-life temperature: Π6.4Τ:), dibenzoquinone peroxide 〇 minute half-life temperature: 13〇.〇.〇135469.doc -22- 200925228, etc. Moreover, the half-life of peroxide, the index of speed, refers to the decomposition of peroxide / peroxide, in the producer Contents (maker 1, half the time. Get the decomposition of half-life) Ge: Zhong Jie is not useful to close the content at any time, for example, the second half of the half-life time of the woman is not exposed to the Japanese oil and fat shares Limited's " Chemicals Catalogue 9th Edition (2〇03 May)"etc. Organic

The above peroxides may be used alone or in combination.

In the above, as a whole, the amount of the M part by weight of the human is & methyl) propylene glycol acid polymer 100 UG.G1 to 2 parts by weight of the above peroxide, (10) seven parts by weight, more preferably When T parts by weight of the weight portion is contained, the crosslinking formation becomes insufficient, and the cross-linking stability secondary workability cannot be improved, and the workability is not considered. On the other hand, when it exceeds 2 parts by weight, the peeling property from the spacer is difficult, or the adhesive layer is hardened due to the long-term property, and peeling easily occurs, which is not preferable. Further, when a peroxide is used as a polymerization initiator, residual peroxide which is not used in the polymerization reaction may be used for the crosslinking reaction, and in this case, the amount of residual residue may be quantitatively added. It is used as a predetermined amount of peroxide. Further, the method for measuring the amount of peroxide decomposition remaining after the reaction treatment can be measured, for example, by HPLC (High Performance Liquid Chromatography). More specifically, for example, about 0.2 g of the reaction composition after the reaction treatment may be taken out at a time, impregnated with ethyl acetate 1 1111, and shaken at 25 with a vibrating machine. 〇 ' 135469.doc •23· 200925228 Vibration extraction at 120 rpm for 3 hours, then allowed to stand at room temperature for 3 days. Then, 10 ml of acetonitrile was added, and the mixture was shaken at 25 ° C and 120 rpm for 30 minutes, and the extract obtained by the membrane filter (0.45 μm) was injected into the HPLC for about 1 〇μΐ, and analyzed as a reaction treatment. The amount of peroxide afterwards. Further, as the above-mentioned crosslinking agent', an organic crosslinking agent or a polyfunctional metal chelate compound can be used together with the peroxide. Examples of the organic crosslinking agent include an epoxy crosslinking agent, an isocyanate crosslinking agent, and an imide crosslinking agent. The polyfunctional metal chelate is a compound in which a polyvalent metal is covalently bonded to an organic compound and a 13-coordinated bond is bonded. As the polyvalent metal atom, A1,

Zr, Co, Cu, Fe, Ni, V, Zn, In, Ca, Mg, Μη, γ,

Ce, Sr, Ba, Mo, La, Sn, Ti, and the like. Examples of the atom in the organic compound to be covalently bonded or coordinately bonded include an oxygen atom; and examples of the organic compound include an alkyl ester, an alcohol compound, a carboxylic acid compound, an etherified human, and a ketone compound. Among the above crosslinking agents, an isocyanate crosslinking agent is preferred. Examples of the isocyanate-based crosslinking agent include aromatic isocyanates such as nonylbenzene diisocyanate and stupyl diisocyanate, and alicyclic isocyanuric acid such as isophorone diisocyanate and diisocyanate. More specifically, the aliphatic isocyanuric acid vinegar such as vinegar is, for example, a lower aliphatic polyisocyanate such as diacetyl succinic acid diacetate or diiso acetyl diacetate; Cyclohexanone, isophor, diisocyanuric acid and other alicyclic isocyanic acid vinegar, 2,4-toluene diisocyanate brewing '4'4, _diphenylmethane diisocyanate, stupid Aromatic diiso isomers such as dimethyl diisocyanate vinegar, poly-methylene polyphenyl isocyanate vinegar 135469.doc -24- 200925228 Cyanate esters triterpene propane/nonyl diisocyanate trimer Additives (manufactured by Sakamoto Polyurethane Industry Co., Ltd., trade name Coronate L), trimethylolpropane/diisocyanate hexamethylene diester adduct (manufactured by Japan Polyurethane Industry Co., Ltd., trade name Coronate HL), Isocyanate such as dimeric isocyanate S-dihexyl diisocyanate (manufactured by Sakamoto Polyamine Vinegar Industry Co., Ltd., trade name c〇ronatei HX) a compound, a polyether polyisocyanate, a polyester polyisocyanate, and an adduct thereof with various polyols, such as an isocyanurate bond, a biuret bond, or an allophanate bond. Polyisocyanate and the like. The isocyanate-based crosslinking agent may be used singly or in combination of two or more kinds, and the content of the whole (meth)acrylic acid-based polymer H) is preferably 0% by weight based on the total amount of the (meth)acrylic acid-based polymer H). 1 to 2 parts by weight of the above-mentioned isophthalic acid-based crosslinking agent, more preferably 4 to 15 parts by weight, more preferably 0.05 to 1 part by weight. If the amount of the right hand is less than 01.01 parts by weight, there is a case where the cohesive force is insufficient and the case is not good. On the other hand, when it exceeds 2 parts by weight, peeling is likely to occur in the durability test, which is not preferable. ❹ The cross-linking agent forms an adhesive layer, and it is necessary to adjust the amount of addition of the peroxide or the equivalent of (4) 3 to adjust the amount of addition, and (4), the effect of the treatment time. The knife considers the adjustment of the parental treatment temperature or the cross-linking crosslinking treatment temperature or the crosslinking treatment time, and the adhesive composition preferably contains the above, more preferably 60% by weight or more, It is 5 〇% by weight. More than weight%. If the amount of decomposition of the peroxide is good, it is set to increase the amount of peroxide remaining in the adhesive composition by more than \% by weight, then 'there will be cross-linking after I35469.doc -25-200925228 The situation of the joint reaction is not good. ❹ More specifically, 'for example, at a cross-linking treatment temperature of ^ minute half-life temperature, the decomposition amount of peroxide after 50 minutes is 50% by weight, and the decomposition amount of peroxide after 2 minutes is 75% by weight, requiring 1 Cross-link processing time of more than one minute. Further, for example, if the half-life (half-life) of the peroxide at the crosslinking treatment temperature is 30 seconds, the crosslinking treatment time of the bell or more is required, and, for example, the half life of the peroxide at the crosslinking treatment temperature is required. If the (half-life time) is 5 minutes, a crosslinking treatment time of 5 minutes or more is required. As described above, 'according to the peroxide used, assuming that the crosslinking treatment temperature or the crosslinking treatment time is once proportional to the peroxide, the half life (half-life) can be calculated by theoretical calculation, and the addition amount can be appropriately adjusted. . On the other hand, the higher the temperature, the higher the possibility of side reactions, and therefore the crosslinking treatment temperature is preferably 1 7 〇〇C or less. Further, the crosslinking treatment may be carried out at a temperature at which the dispensing layer <drying step is taken, or may be additionally provided after the drying step. Further, it is usually about 0.2 to 20 minutes, and it is preferably about 5 to 1 minute, depending on the productivity or the operability. Further, an external coupling agent can be used in the adhesive composition of the present invention to improve adhesion and durability. The known decane coupling agent can be suitably used without particular limitation. Specifically, 'for example, 3' glycidoxypropyl trimethoxy sulfonium glycidoxypropyl triethoxy zeoxime, 3 - glycidoxypropyl methyl diethoxy decane, 2 _ An epoxy group-containing decane coupling agent such as (34-epoxycyclohexyl)ethyltrimethoxydecane; 3-aminopropyltrimethoxyfluorene 135469.doc •26- 200925228 alkane, N-2-(amine Ethyl)_3_aminopropylmercaptodimethoxydecane, 3•triethoxydecyl-N-(l,3-dimethylbutylidene)propylamine, N-phenyl·Acetylpropyltrimethyl An amine group-containing decane coupling agent such as oxydecane; 3-methacryloxypropyltrimethoxydecane, 3-methacryloxypropyltriethoxydecane, etc. containing (meth)acrylonitrile group a decane coupling agent such as a decane coupling agent; an isocyanate group-containing decane coupling agent such as 3-isocyanate propyl triethoxy decane. The use of such a decane coupling agent is preferred for improving durability. ❹ ❹ The above decane coupling agent may be used singly or in combination of two or more kinds as a whole, and preferably contains 0.01 to 2 parts by weight based on 1 part by weight of the above (meth)acrylic polymer. The decane coupling agent is more preferably 0.02 to 0.6 parts by weight 'and more preferably contains 〇〇5 to 〇3 by weight. If it is less than 0. 01 parts by weight, it does not fill the blade for improving durability. On the other hand, when the amount is more than 2 parts by weight, the adhesion to the optical member such as the liquid crystal cell is excessively increased, and the secondary workability is lowered. Further, in the adhesive composition of the present invention, other known ones may be included. For example, a coloring agent, a powder of a pigment, a dye, a surfactant, a plasticizer, and an adhesive may be appropriately added depending on the use. Sex agent, slip agent, leveling agent, softener, antioxidant, anti-aging agent, light agent 疋 "UV absorber, polymerization inhibitor, inorganic or organic filler metal powder, particulate, foil cage v It is also possible to use "a redox system to which a reducing agent is added in a controllable range. The optical adhesive composition of the present invention and the m-layer are made of the above-mentioned optical film adhesive. In the light of the viewpoint of the light workability of the spacer, the gel fraction of the adhesive layer is preferably 135,469.doc •27·200925228 is 50 to 95% by weight. The gel fraction is preferably from 55 to 9 % by weight, more preferably from 60 to 90% by weight. The gel fraction was determined by the method disclosed in the examples. The above-mentioned adhesive layer for an optical film can be formed by being applied to a substrate and then subjected to treatment and hardening. The adhesive optical film of the present invention is applied to the surface of the optical film, and the adhesive layer is formed by the above adhesive. As a method of forming the above-mentioned adhesive method, for example, a spacer or the like which has been subjected to a release treatment is used as a substrate, and the above-mentioned adhesive composition is applied onto the spacer, and the polymerization solvent or the like is dried and cured, and cured. A method of forming an adhesive layer and then transferring it onto an optical film... As a method of forming the above-described adhesive layer, for example, an optical film is used as a substrate, and the above-mentioned adhesive composition is applied directly onto an optical film, and dried to remove polymerization. A method of forming a pressure-sensitive adhesive layer on an optical film by a solvent or the like. Further, when the adhesive is applied, one or more solvents other than the polymerization solvent may be newly added. The formation of the above-mentioned adhesive layer is preferably carried out by applying the above-mentioned optical film adhesive composition to a certain explosive material, for example, at 70 to 16 Å. . The temperature was treated in a period of 30 seconds to be hardened (dried). The upper crucible hardening temperature is preferably 8G to 16n: and more preferably (10) to (10). Further, the hardening time cup β, λ m is 疋 30 to 180 seconds, more preferably 30 to 120 seconds. In the adhesive film of the optical film of the present invention, the (mercapto) acrylic polymer oxide as a base polymer is used as a crosslinking agent, and the adhesive is used in the aspect. When the composition is hardened, even if 135469.doc -28· 200925228 is at a low temperature as described above (12 (rc or less), the hardening treatment can be performed rapidly. Previously, the adhesive composition for an optical film contained a peroxide as a peroxide. In the case of a crosslinking agent, when the adhesive composition is subjected to a curing treatment at the low temperature, the peroxide remains and changes with time, for example, the peeling property of the spacer increases, but the adhesive composition of the present invention That is, it is convenient to carry out the hardening treatment at a low temperature as described above, and it is possible to maintain the light peeling property with respect to the spacer. Particularly, in the case where the adhesive composition for an optical film of the present invention contains a decane coupling © 上述, the above The treatment conditions are suitable. In the prior, when the adhesive composition containing the Shi Xi singer is over 14 〇 (at a high temperature, when the hardening treatment is performed for more than 120 seconds, The decane coupling agent is evaporated, the residual amount is reduced, and the long-term durability is not sufficient. However, the adhesive composition of the present invention can be rapidly hardened even at the above-mentioned low temperature, and the stagnation coupling agent can be maintained over time. Remaining, long-term durability can be maintained, and the life of the product can be prolonged. Φ When the adhesive optical cymbal of the present invention is produced, it can be opened on the surface of the optical film (to form a tackifying layer, or to perform corona treatment and electrical installation). The adhesive layer may be formed after the subsequent treatment, and the surface may be easily treated on the surface of the adhesive layer. Various methods may be used for forming the adhesive layer. Specifically, for example, roll coating, Contact roll coating, gravure coating, reverse coating, roll brushing, spray coating, dipping seam, bar coating, knife coating, curtain coating, chen coating, coating, hP c〇at, The thickness of the adhesive layer is not particularly limited, for example, by using a squeeze coater or the like. 135469.doc -29- 200925228 The thickness of the adhesive layer is not particularly limited, for example, it is about ι 〇〇 μπι. 50μ Πι, more preferably 1〇~3〇μιηι. When the above adhesive layer is exposed, a sheet (spacer) for protecting the adhesive layer can be applied until it is used. Examples of the constituent material include plastic films such as polyethylene, polypropylene, polyethylene terephthalate, and polyester film, and porous materials such as paper, cloth, and non-woven fabric, mesh, foamed sheet, and metal flute. And a suitable sheet such as a laminate of these materials, etc., from the viewpoint of excellent surface smoothness, it is preferable to use a plastic film as the plastic enamel, if the film of the adhesive layer is protected There is no particular limitation, and examples thereof include a polyethylene film, a polypropylene film, a polybutene, a polybutadiene, a polyfluorene film, a gas-gas fluorene, a gas-ethylene copolymer film, and a polyterephthalic acid. Ethylene vinegar film, polybutylene terephthalate film, polyurethane film, ethylene-vinyl acetate copolymer film, and the like. The thickness of the spacer is usually 5 to 20 〇 μηι, preferably about 5 to 1 〇〇 • μιη. Further, the spacer may be subjected to mold release and antifouling treatment using a polyfluorene-based, fluorine-based, long-chain alkyl-based or fatty amide-based release agent, cerium oxide powder or the like, or a coating type or a mixed type. Antistatic treatment such as vapor deposition type. In particular, the peeling property from the above-mentioned adhesive layer can be further improved by suitably performing a release treatment such as polyfluorination treatment, long-chain alkyl treatment, or fluorine treatment on the surface of the spacer. The adhesive layer of the present invention is suitable for the release of the spacer, and is particularly suitable for the release treatment by the polyoxygen treatment. Further, the sheet which was subjected to the peeling 135469.doc 200925228 used in the production of the above-mentioned adhesive optical film can be directly used as a spacer for the adhesive optical film, which can be simplified in steps. The optical film is used in the formation of an image display device such as a liquid crystal display device, and the type thereof is not particularly limited. For example, a polarizing plate is exemplified as the optical film. The polarizing plate is generally used for a transparent protective film on one side or both sides of a polarizing element.

The polarizing element is not particularly limited, and various polarizing elements can be used. Examples of the polarizing element include adsorption of iodine or dichroism on a hydrophilic polymer film such as a polyvinyl alcohol film, a partially-formified polyvinyl alcohol film, or an ethylene-vinyl acetate copolymer-based partial saponified film. a dichroic substance of a dye and a one-way extension; a dehydration treatment of acetol or a polyolefin-based alignment film such as a degassed hydrogen treatment of polyethylene gas. Among them, a polarizing element formed of a polyvinyl alcohol-based film and a dichroic substance such as iodine is preferred. The thickness of the polarizing members is not particularly limited and is usually about 5 to 8 inches. A polarizing element obtained by dyeing a polyethylene film (4) and then unidirectionally extending can be produced, for example, by dipping polyvinyl alcohol into an aqueous solution of moth and then stretching to 3 to 7 times the original length. . It may also be impregnated into an aqueous solution containing ban acid or zinc sulphate or zinc hydride. Further, it is also possible to immerse the polyvinyl alcohol-based film in water for washing before dyeing. By washing with ethylene (10), it is possible to wash away the dirt or blocking inhibitor on the surface of the polyvinyl alcohol film, and in addition, by swelling the polyvinyl alcohol film to prevent uneven dyeing. Unevenness--effects: after dyeing with yttrium, or by "dyeing", or by (4) after (four) entering (four) color 4 can be used in the aqueous solution of 135469.doc 200925228 or The water bath is extended ten. The material constituting the transparent film is used for, for example, a thermoplastic resin excellent in transparency, mechanical strength, thermal stability, moisture barrier property, and isotropic property. Specific examples of such a thermoplastic resin include a cellulose resin such as triacetonitrile cellulose, a polyester resin, a polyether oxime resin, a polyfluorene resin, a polycarbonate resin, a polyamide resin, and a polyimide resin. Polyolefin resin: (f-based) acrylic resin, cyclic polyolefin resin (northene-based resin), polyarylene resin, polystyrene resin, polyvinyl alcohol resin, and the like. Further, the transparent protective film is bonded to one side of the polarizing element by the adhesive layer, and the (meth)acrylic, urethane-based or acrylic acid-based carboxylic acid is used on the other side. A thermosetting resin such as an epoxy resin or a polyoxymethylene resin or an ultraviolet curable resin is used as a transparent protective film. The transparent protective mash may contain one or more optional additives. The additive may, for example, be a UV absorber, an antioxidant, a lubricant, a plasticizer, a release agent, a color preventive agent, a flame retardant, a nucleating agent, an antistatic agent, a pigment, a colorant or the like. The content of the above thermoplastic resin in the transparent protective film is preferably from 50 to 100% by weight, more preferably from 5 to 99% by weight, still more preferably from 60 to 98% by weight, particularly preferably from 70 to 70% by weight. 97% by weight. When the content of the thermoplastic resin in the transparent protective film is 50% by weight or less, the high transparency and the like which the thermoplastic resin originally has cannot be sufficiently exhibited. Further, as the transparent protective oxime, for example, a polymer film disclosed in Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. Hei. No. 343 529 (WO 01/37007) may, for example, contain a substituted (A) branch and/or a substituted quinone imine-based thermoplastic resin, and (B) a resin composition β having a substituted and/or unsubstituted 135469.doc • 32-200925228 phenyl and a nitrile-based thermoplastic resin as a specific For example, a resin composition film containing an alternating copolymer of isobutylene and fluorene-methylmaleimide and an acrylonitrile-styrene copolymer can be mentioned. As the film, a film formed of a mixed extrusion of a resin composition or the like can be used. Since these films have a small phase difference and a small photoelastic coefficient, the unevenness caused by the deformation of the polarizing plate can be eliminated, and since the moisture permeability is small, the humidifying durability is excellent.

The thickness of the transparent protective film can be appropriately determined, and it is usually about 500 μπι in terms of workability such as strength and workability, and thinness. In particular, it is preferably 1 to 300 μmη, more preferably 5 to 2 Å, and the transparent protective film is particularly suitable for the case of 5 to μηη. Furthermore, when a transparent protective film is provided on both sides of the polarizing element, a protective film formed of the phase (4) may be used on the front and back sides, and a protective film formed of a different polymer material or the like may be used. The transparent protective film of the present invention preferably uses at least one selected from the group consisting of a cellulose resin, a polycarbonate resin, a cyclic polystyrene resin, and a (meth)acrylic acid resin. As a specific example of such a cellulose vinegar-based resin, triethyl hydrazine cellulose, diethyl benzene, tripropyl cellulose, dipropylene cellulose, etc., etc. Cellulose. Triethylene glycol is entangled in this product. Many of the cellulose products are commercially available. It is more convenient to obtain from the viewpoint of easy availability or cost. As an example of the commercial product of triethylene glycol cellulose List the Fuji Dolphin H VIII... 'The name of the product made by the company's Uv_5〇", "UV-80","SH-80,,,"τη TM_8〇","TD_TAC"," UZ tac" or 135469.doc -33- 200925228

"KC series", etc. manufactured by Konica Co., Ltd. Generally, the in-plane retardation (Re) of the triacetyl cellulose is approximately 〇, and the thickness direction retardation (Rth) is about ~60 nm. The cellulose resin film having a small retardation in the thickness direction can be obtained, for example, by treating the cellulose resin, and examples thereof include polyethylene terephthalate coated with a solvent such as cyclopentanone or methyl ethyl ketone. A base film such as a diester, a polypropylene or a stainless steel is bonded to a usual cellulose film and dried by heating (for example, at 80 to 15 (about 3 to 1 minute after rc), and then the base (4) is peeled off. A solution obtained by dissolving a olefinic resin or a (meth)acrylic resin in a solvent such as cyclopentanone or decylethyl hydrazine may be applied to a usual cellulose resin film and dried by heating (for example, at 8 Torr). (4) A method of peeling off a coating film after a lapse of about 3 to 10 minutes, and a method of peeling off a coating film, etc. As a cellulose resin film having a small retardation in the thickness direction, a fatty acid cellulose resin medium having a fat substitution degree can be used. Used in general In the acetamidine cellulose, by controlling the degree of substitution of acetic acid to the left and right, it is better to control the degree of substitution of acetic acid to be .8 to 2.7, which can reduce Rth. By the above-mentioned cellulose substituted by the lipid (four) Adding plasticizer such as dibutyl phthalate, p-toluene aniline, citric acid triethyl vinegar, etc., can control Rth to be small. Compared with 100 weight of fatty acid cellulose resin, The amount of the plasticizer added is preferably 40 parts by weight or less, more preferably 1 to 2 parts by weight, still more preferably 1 to 15 parts by weight. & As a specific example of the woven polystyrene resin, The olefinic resin is a general term for a resin obtained by polymerizing a cycloolefin as a polymerization unit, and examples thereof include Japanese Patent Laid-Open No. _24〇5ΐ7, 135469.doc • 34 · 200925228 曰本专利特开平3·〗 公告, etc. t Japanese Patent Lai-Ping 3_122137 (4) Ping Ba Xia Shu Yue 0. As a specific example, the ring-opening of the cycloolefin is not mentioned, the ring-like addition polymer 'ring 埽Ethylene, propylene and other metaphors (typically random copolymers) Organisms on several other acid by-modified graft copolymers and the like of the gas, and the like. Specific examples of the ring dilute, New York-based monomer include drop.

As a specific example of the cyclic (tetra) hydrocarbon resin, the product name of the Japanese z_company, ζΕ〇ΝΕχ", "ZE〇N〇R", JSR Co., Ltd. Trade name "ARTON", the trade name "T〇pAS" manufactured by TICONA, and the trade name "APEL" manufactured by Mitsui Chemicals Co., Ltd.

The (sub-group) acrylic resin preferably has a Tg (glass transition temperature) of 115 C or more, more preferably 12 Å. (: The above, and more preferably 125 〇 Ca, particularly preferably 130 〇 C or more. By making Tgg 115r or more, the durability of the polarizing plate is excellent. For the above (fluorenyl) acrylic resin The upper limit is not particularly limited, and is preferably 170° C. or less from the viewpoint of moldability, etc. In-plane retardation (Re) and thickness direction retardation (Rth) can be obtained from a (meth)acrylic resin. As the (meth)acrylic resin, any suitable (meth)acrylic resin can be used without departing from the effects of the present invention. For example, polyacrylic acid is exemplified. Poly(fluorenyl) acrylate such as oxime ester, hydrazine acrylate vinegar _ (meth)acrylic acid copolymer, methyl methacrylate-(mercapto) acrylate copolymer, methyl methacrylate-acrylate-( a methyl)acrylic acid copolymer, a (meth)acrylic acid methyl vinegar·styrene copolymer (MS resin, etc.), a polymer having an alicyclic group 135469.doc-35-200925228 hydrocarbon group (for example, methyl methacrylate- Cyclohexyl methacrylate copolymer, methyl methacrylate _ ( Mercapto) acrylic acid-lowering ester copolymer, etc.) Preferably, poly(meth)acrylic acid C1~6 base vinegar such as poly(methyl) acrylate is used. More preferably, methyl methacrylate is listed. The methacrylic acid methyl methacrylate resin is a main component (50 to 1% by weight, preferably 7 Å to 1% by weight). Specific examples of the (fluorenyl) acrylic resin include, for example, (Meth)acrylic resin having a ring structure in the molecule disclosed in the Japanese Patent Laid-Open Publication No. 2004-70296, which is manufactured by Mitsubishi Rayon Co., Ltd., using intramolecular crosslinking or intramolecular cyclization. High Tg (meth)acrylic resin obtained by the reaction. As the (meth)acrylic resin, a (fluorenyl) acrylic resin having a lactone ring structure can be used because of high heat resistance and high transparency. High mechanical strength by biaxial stretching. As a (meth)acrylic resin having a lactone ring structure, it is exemplified in Japanese Patent Laid-Open No. 2000-230016, and Japanese Patent Laid-Open No. Hei 2 No. 151814 Bulletin, 曰Patent No. 2,212,326, Japanese Patent Laid-Open Publication No. 2002-254544, Japanese Patent Laid-Open No. Hei No. Hei No. Hei No. 2, No. Acrylic resin. The (meth)acrylic resin having a lactone ring structure preferably has a pseudo ring structure represented by the following formula (Chemical Formula 1): 135469.doc 36- 200925228 [Chemical Formula 1]

Wherein 'R1, R2 and R3 are each independently, meaning that the hydrogen atom or the carbon number is 1 to 20 ❹

Organic residue. Further, the organic residue may include a (meth)acrylic resin having a lactone ring structure of an oxygen atom, and a content ratio of a lactone ring structure represented by the formula (Chemical Formula 1). It is 5 to 9 〇 by weight ❶ / ❶, more preferably 1 〇 to 70% by weight, and even more preferably 1 〇 to 6 〇 by weight, particularly preferably 1 〇 to 50% by weight. In the structure of the (meth)acrylic resin having an internal ring structure, if the content ratio of the internal (four) structure represented by the formula D is less than 5% by weight, heat resistance, solvent resistance, and surface hardness may be changed. In the structure of the (meth)acrylic resin having an internal vinegar ring structure, if the content ratio of the lactone ring structure represented by the formula (Chemical Formula 1) is more than 90% by weight, it is present. The molding processability becomes insufficient. The mass average molecular weight (sometimes referred to as weight average molecular weight) of the (fluorenyl) acrylic resin having a lactone ring structure is preferably 1 〇〇〇 2 〇〇〇〇 〇〇, more preferably 5000~1000000' and further preferably 1〇〇〇〇~5〇〇〇〇〇, particularly preferably 50,000~500000. If the mass average molecular weight exceeds the above range, then self-forming processability The viewpoint is not considered. The (meth) acryl-based resin having a lactone ring structure, and the Tg is preferably ii5c or more 'better*12 (rc or more, and more preferably i25〇c or more). Particularly preferably, it is 130t or more. The Tg is 115. 135469.doc -37- 200925228 When it is incorporated into a polarizing plate as a transparent protective tape, it is excellent in durability. There is no special upper limit of U of the (meth)acrylic resin having the above lactone ring structure. It is preferable that it is 170 ° C or less from the viewpoint of self-formability, etc. The method of the (meth)acrylic resin which has a lactone ring structure, and the molded article obtained by injection molding is based on ASTM_D_1〇〇3. The higher the total light transmittance measured, the better, preferably 85% or more, more preferably "% or more, and more preferably 90% or more. The total light transmittance is the basis of transparency, if the total light is transmitted through When the ratio is less than 85%, the transparency is lowered. The transparent protective film is generally used in which the front phase difference is less than 4 Å and the thickness direction retardation is less than 80 1101. The front phase difference ReWRe = (nxDxd represents the thickness direction phase difference Rth is Rth=(nx_nz)xd is expressed. Further, the & coefficient is expressed by NZ=(nX-nz)/(nx_ny). [The refractive index of the film in the slow axis direction, the fast sleeve direction, and the thickness direction are respectively nx, ny. , nz, d (nm) film thickness The direction of the slow axis direction in the plane of the film becomes the largest direction. Further, it is preferable that the transparent protective film is not colored as much as possible. It is preferable to use the phase difference in the thickness direction to be _9 〇 nm to + The 75 nm protective film can substantially eliminate the coloring (optical coloring) of the polarizing plate caused by the transparent protective film by using a protective film having a phase difference (Rth) in the thickness direction of _9 〇 nm to +75 nm. The direction phase difference (Rth) is further preferably _8 〇 nm to +60 nm ' particularly good is _7 〇 nm to +45 nm. On the other hand, as the transparent protective film, a phase difference plate having a phase difference of 135469.doc -38·200925228 having a front phase difference of 40 nm or more and/or a thickness direction phase difference of 8 〇 nm or more can be used. The front phase difference is usually controlled in the range of 4 〇 to 2 〇〇 nm, and the thickness direction phase difference is usually controlled in the range of 80 〜 3 〇〇 nm. When a phase difference plate is used as the transparent protective film, the phase difference plate also functions as a transparent protective film, so that the thickness can be reduced. Examples of the retardation film include a birefringent film obtained by subjecting a polymer material to uniaxial or biaxial stretching treatment, an alignment film of a liquid crystal polymer, and an alignment layer of a liquid crystal polymer. . There is no particular limitation on the thickness of the phase difference plate, which is usually about 20 to 15 inches. Examples of the polymer material include polyethylene glycol and polyvinyl butyrate.

搭,聚曱基乙趟, polypropionic acid via ethyl, ethyl cellulose, propyl cellulose, sulfhydryl cellulose, polycarbonate, polyarylate, polysulfone, polyethylene terephthalate Diester, polyethylene naphthalate, polyether sulfone, polyphenylene sulfide 'polyphenyl poly arsenite wind, polyamine, polyaniline, poly-smoke, polyethylene, cellulose resin, ring Polycarbonate resin (lowering rare resin) or its binary or ternary various copolymers, graft copolymers, mixtures, and the like. These polymer materials can be oriented (extended film) by stretching or the like. The liquid crystal polymer may, for example, be a main chain type or a branched type polymer in which a linear linear atomic group (liquid crystal original) which imparts liquid crystal alignment properties is introduced into a main chain or a bond of a polymer. Specific examples of the main chain type liquid crystalline polymer include those having a structure in which a liquid crystal priming group is bonded to a spacer portion to which flexibility is imparted, for example, a nematic alignment polymerized liquid crystal polymer or a disk. A polymer or a cholesterol type polymer or the like. As a specific example of the branched-type liquid crystal polymer, a total of 135469.doc • 39· 200925228 methacrylate or polymalonate is used as a main chain skeleton. The spacer of the conjugated atomic group has a liquid crystal original portion including a para-substituted cyclic compound unit imparting nematic alignment as a branch. The liquid crystal polymer is treated, for example, by rubbing the surface of a film such as polyimide or polyvinyl alcohol formed on a glass plate, or by slanting steaming, ore, etc. On the treated surface, the solution of the liquid crystalline polymer is developed and then heat treated. The retardation plate may be, for example, a variety of wavelength plates or a coloring or viewing angle for compensating for the double refraction of the liquid crystal layer, etc., and may be suitable for the purpose of use, or may be controlled by laminating two or more kinds of phase difference plates. For optical characteristics such as phase difference, the phase difference plate satisfies nx=ny>nz, nx>ny>nz, nx>ny=nz, nx>nz>ny,nz=nx>ny,nz>nx>ny,nz>nx The relationship of =ny can be selected according to various purposes. Furthermore, the so-called ny=nz means not only the case where ny is exactly the same as nz, but also the case where ny and nz are actually the same. For example, it is preferable to use a phase difference plate satisfying nx > ny > nz, and it is preferable to use a positive phase difference of 40 to 100 nm, a thickness direction retardation of 100 to 320 nm, and an Nz coefficient of 1.8 to 4.5. For example, a phase difference plate (positive A-plate) satisfying nx > ny = nz is preferably used to satisfy a front phase difference of 100 to 200 nm. For example, a phase difference plate (negative A-plate) satisfying nz = nx > ny is preferably used to satisfy a front phase difference of 100 to 200 nm. For example, a phase difference plate satisfying nx > nz > ny is preferably used to satisfy a front phase difference of 150 to 300 nm and an Nz coefficient of more than 0 and 0.7 or less. Further, as described above, for example, a transparent protective film which satisfies 135469.doc -40 - 200925228 nx = ny > nz, nz > nx > ny or nz > nx = ny can be suitably selected depending on the liquid crystal display device to be applied. For example, in the case of VA (Vertical Alignment, including MVA or PVA), it is preferred that the transparent protective film of at least one of the polarizing plates (unit side) has a phase difference. As a specific phase difference, a range of Re = 0 to 240 nm and Rth = 0 to 500 nm is preferable. In the case of the three-dimensional refractive index, it is preferable that nx > ny = nz, nx > ny > nz, nx > nz > ny, nx = ny > nz (positive A plate, biaxial, negative C plate). Regarding the AV type, it is preferable to use a combination of a positive A plate and a negative C plate, or a single biaxial film. When the polarizing plate is used above and below the liquid crystal cell, the liquid crystal cell may have a phase difference both above and below, or may have any phase difference between the upper and lower transparent protective films. For example, in the case of IPS (In-Plane Switching, including FFS), the transparent protective film on one of the polarizing plates may be used in the case where there is a phase difference or not. For example, in the case where there is no phase difference, it is preferable that the liquid crystal cell has no phase difference above (the unit side). In the case of having a phase difference, it is preferable to have a phase difference between the upper and lower sides of the liquid crystal cell, and a case where any one of the upper and lower sides has a phase difference (for example, the upper side is a biaxial film satisfying the relationship of nx > nz > ny There is no phase difference on the lower side, or the case where the upper side is a positive A plate and the lower side is a positive C plate). In the case of having a phase difference, it is preferably in the range of Re = -500 to 500 nm and Rth = -500 to 500 nm. In terms of the three-dimensional refractive index, nx > ny = nz, nx > nz > ny, nz > nx = ny, nz > nx > ny (positive A plate, biaxial, positive C plate). Further, the above-mentioned film having a phase difference can be additionally bonded to a transparent protective film which does not have a phase difference of 135469.doc • 41 - 200925228 to impart the above functions. The transparent protective film may be subjected to surface modification treatment to improve adhesion to the polarizing element before the application of the adhesive. As a specific treatment, corona treatment, plasma treatment, flame treatment, ozone treatment, primer treatment glow treatment, interest treatment, treatment with a coupling agent, and the like can be listed. Further, it is preferable to form an antistatic layer. The surface of the transparent protective film which is not attached to the polarizing element may be subjected to a hard coat layer or an anti-reflection treatment, a release treatment, or a treatment for diffusion or anti-glare. The purpose of the hard coat treatment is to prevent damage to the surface of the polarizing plate, for example, by adding a hardness or sliding property of a suitable ultraviolet curable resin such as acrylic acid or polyoxymethylene to the surface of the transparent protective film. It is formed by the method of hardening a film, etc.. The purpose of performing the anti-reflection treatment is to prevent external light from being reflected on the surface of the polarizing plate, and it can be achieved by forming a conventional anti-reflection film or the like. Further, the purpose of performing the anti-sticking treatment is to prevent adhesion to an adjacent layer (e.g., a diffusing plate on the backlight side). In addition, the purpose of the actual (four) glare treatment is to prevent the external light from being reflected on the surface of the polarizing plate and to interfere with the identification of the transmitted light of the polarizing plate, for example, by roughening the surface by blasting or embossing, or by arranging transparent particles. A suitable method such as a method is formed by imparting a fine uneven structure to the surface of the transparent protective film. The fine particles contained in the formation of the surface fine uneven structure can be used, for example, for cerium oxide, aluminum oxide, titanium oxide, oxidized oxidized, tin oxide, indium oxide, or oxidized, having an average particle diameter of 0 5 to 2 Å μm. Transparent fine particles such as inorganic fine particles usually composed of cadmium or cerium oxide, and organic fine particles composed of crosslinked or polymer crosslinked by 135469.doc-42-200925228. In the case of forming a fine uneven structure on the surface, the amount of fine particles used is usually about 2 to 7 Å, preferably about 5 to 5 parts by weight, based on 100 parts by weight of the transparent resin forming the surface fine uneven structure. It may also be a diffusion layer (viewing angle expansion function, etc.) for diffusing the transmitted light of the polarizing plate to expand the viewing angle or the like. Further, the antireflection layer, the release layer, the diffusion layer or the antiglare layer may be provided separately from the transparent protective film as other optical layers, in addition to the transparent protective film itself. An adhesive is used in the subsequent treatment of the polarizing element and the transparent protective film. Examples of the adhesive include an isocyanate-based adhesive, a polyvinyl alcohol-based adhesive, a gelatin-based adhesive, a vinyl latex, and an aqueous polyester. The above-mentioned adhesive is usually used as an adhesive containing an aqueous solution, and usually contains 0 5 to 60% by weight of a solid component. In addition to the above, examples of the subsequent agent of the polarizing element and the transparent protective film include an ultraviolet curable adhesive, an electron beam curable adhesive, and the like. The adhesive for an electron beam curing type polarizing plate exhibits an appropriate adhesion to the above various transparent protective films. Further, in the adhesive used in the present invention, a metal compound filler may be contained. Further, examples of the optical film 'for example include a reflector or a semi-transmissive plate, the retardation plate (including a 1/2 or 1/4 wavelength plate), a viewing angle compensation film, and a brightness improving film equal to the formation of a liquid crystal display device or the like. Optical layer. These may be used alone as the optical film. Alternatively, it may be used by laminating one or more layers on the above-mentioned polarizing plate at the time of actual use. Particularly preferably, a reflective polarizing plate or a semi-transmissive polarizing plate which is formed by laminating a reflecting plate or a semi-transmissive reflecting plate 135469.doc-43-200925228 on a polarizing plate; and forming a phase difference plate on the polarizing plate An elliptically polarizing plate or a circular polarizing plate; a wide viewing angle polarizing plate formed by laminating a viewing angle compensation film on a polarizing plate; or a polarizing plate formed by laminating a brightness improving film on a polarizing plate. Ο

The reflective polarizing plate is formed by providing a reflective layer on a polarizing plate, and can be used to form a liquid crystal display device of a type that reflects incident light from the identification side (display side) for display, and can omit a light source such as a built-in backlight. Therefore, there is an advantage that the liquid crystal display device can be easily thinned. The formation of the reflective polarizing plate can be carried out by a suitable method in which a transparent protective layer is equal to a reflective layer containing a metal or the like on one surface of the polarizing plate as needed. Specific examples of the reflective polarizing plate include a polarizing plate including a foil of a reflective metal such as aluminum or a vapor film to form a reflective layer, as needed on a single surface of a transparent protective film which is subjected to matting treatment. In addition, a reflective polarizing plate or the like which has a fine uneven structure on the surface and a reflective layer having a fine uneven structure thereon is formed by containing fine particles in the transparent protective film. The reflective layer of the fine uneven structure has diffused reflection to diffuse human light to prevent the buckle property or the appearance from being bright, and the advantage of unevenness in brightness and the like can be suppressed. Further, the transparent protective film containing fine particles also has an advantage of diffusing the human light and the reflected light therethrough to further suppress uneven brightness and the like. The formation of the reflective layer of the fine concavo-convex structure reflecting the fine uneven structure on the surface of the transparent protective film can be suitably formed by, for example, vacuum evaporation, ion plating, sputtering, or plating. The method is carried out by directly attaching a metal to the surface of the transparent protective layer, Yuan Shishi & As a substitute (4) reflector, (4) a transparent protective film on the polarizing plate 135469.doc -44 - 200925228, and a film is provided on the appropriate film based on the permeable layer: a layer is used as a reflection sheet or the like. Furthermore, the reflective layer usually contains gold L to prevent the decrease in reflectance due to oxidation, and thus the viewpoint of long-term imaginary, initial reflectance or avoidance of a separate protective layer. (4) = Qianming protective film or polarizing plate, etc. Covering its reflective surface

Further, the semi-transmissive polarizing plate can be obtained by a semi-transmissive reflective layer such as a half mirror which is made to transmit light by a reflective layer=lighting light i, and the semi-transmissive polarizing plate is usually provided in liquid crystal. On the back side of the unit, when a liquid crystal display device or the like is used in a relatively bright environment, the incident light from the identification side (display side) is reflected to display an image, and in a dark environment, the built-in semi-transmissive type is used. A liquid crystal display device or the like that displays an image by a built-in power source such as a backlight on the back surface of the polarizing plate. In other words, the semi-transmissive polarizing plate can save energy used for light sources such as backlights in a bright environment, and can be used in the formation of a liquid crystal display device of a type having a built-in power supply in a dark environment. An elliptically polarizing plate or a circularly polarizing plate formed by laminating a phase difference plate on a polarizing plate will be described. When the linearly polarized light is changed to elliptically polarized or circularly polarized light, or the elliptically polarized or circularly polarized light is changed to linearly polarized light, or the polarized direction of the linearly polarized light is changed, a phase difference plate or the like can be used. In particular, a so-called quarter-wave plate (also referred to as a λ/4 plate) is used as a phase difference plate which changes linearly polarized light into circularly polarized light or changes circularly polarized light into linearly polarized light. 1/2 wavelength plates (also known as λ/2 plates) are often used to change the direction of polarization of linearly polarized light. 135469.doc • 45· 200925228 The elliptically polarizing plate can be effectively used to compensate (prevent) the coloring (blue or yellow) produced by the birefringence of the liquid crystal layer in a super-twisted nematic (s τ N) type liquid crystal display device. There is no black and white display of the above coloring, and the like. Further, the polarizing plate for controlling the three-dimensional refractive index can also compensate (prevent) the coloring which occurs when the screen of the liquid crystal display device is viewed obliquely. The circularly polarizing plate can be effectively used, for example, in the case of adjusting the color tone of an image of a reflective liquid crystal display device that displays an image in color, and has a function of preventing reflection. Further, the elliptically polarizing plate or the reflective elliptically polarizing plate is formed by laminating a polarizing plate or a &-amplitude polarizing plate and a phase difference plate as appropriate. The elliptically polarizing plate or the like may be formed by sequentially laminating (reflecting) a polarizing plate and a phase difference plate in a manufacturing process of the liquid crystal display device to form a combination of a (reflective) polarizing plate and a phase difference plate, as described above. It is excellent in the stability of the quality or the lamination workability, and it is excellent in the manufacturing efficiency of a liquid crystal display device, etc., and it is set as the toxic-photon of an elliptically polarizing plate in advance. The viewing angle compensation system makes the image appear sharper for expanding the viewing angle even when the screen of the liquid crystal display device is not viewed perpendicularly to the screen. The viewing angle compensation phase difference plate is, for example, an alignment film such as a 匕3 phase difference plate or a liquid crystal polymer, or an alignment layer in which a liquid crystal polymer or the like is supported on a transparent substrate. In general, a phase difference plate is used to perform a uniaxially stretched polymer film having birefringence in the surface direction, and as a phase difference plate used as a viewing angle compensation film, a biaxial stretching can be performed along the surface 7 thereof. The birefringent polymer film is uniaxially stretched in the plane direction thereof and is also applied along the thickness direction thereof to extend the refractive index direction and the right cone birefringent polymer or the tilt alignment film. Axis 135469.doc -46- 200925228 Extension film, etc. The oblique alignment film may be, for example, a polymer film which is subjected to elongation treatment or/and shrinkage treatment under the action of shrinkage force caused by heating after the heat shrink film is applied, and the liquid crystal polymer is tilted. Orientation, etc. As the material raw material polymer of the phase difference plate, the same as the polymer described in the above-described phase difference plate can be used, and coloring or the like due to a change in the recognition angle based on the phase difference generated by the liquid crystal cell can be used or It is suitable for the purpose of expanding the perspective of good recognition. Further, from the viewpoint of achieving a wide viewing angle with good visibility, it is preferable to use an optical layer supporting an alignment layer containing a liquid crystal polymer, particularly a tilted alignment layer of a discotic liquid crystal polymer, with triacetyl cellulose oxime. An optically compensated phase difference plate of an anisotropic layer. A polarizing plate in which a polarizing plate and a brightness improving film are bonded together is usually provided on the back side of the liquid crystal cell. The brightness-improving film is formed by reflecting a linearly polarized light of a specific polarization axis or a circularly polarized light of a specific direction when a natural light is incident due to a backlight of a liquid crystal display device or the like, or reflection from the back side, and the brightness is transmitted through other characteristics. The polarizing plate in which the film and the polarizing plate are laminated can improve the light transmitted from the light source such as the backlight to obtain the transmitted light of a specific polarized state, and the light other than the specific polarized state is not transmitted and reflected. The light reflected on the surface of the ridge is further reversed by the reflection layer provided on the rear side, and is again incident on the brightness, and the light is transmitted through part or all of the light in a specific polarization state. In addition, the amount of light of the film is increased by the brightness enhancement, and the polarized light that is hard to be absorbed is supplied to the polarizing element, thereby increasing the amount of light that can be used in liquid crystal display image display or the like, thereby improving the brightness. That is, when the light-improving film is not used and a light source is incident on the surface side of the liquid crystal cell: back surface 135469.doc -47-200925228 by a backlight or the like, the polarizing axis of the polarizing element does not have a polarization direction. The light is substantially absorbed by the polarizing element and cannot pass through the polarizing element. That is, although about 5 〇% of the light of the polarizing element used is absorbed by the polarizing element, the amount of light usable in the liquid crystal image display or the like is reduced correspondingly, resulting in darkening of the image. The child-improving film is repeatedly operated such that light having a polarization direction that can be absorbed by the polarizing element is not incident on the polarizing element, and is reflected on the brightness improving flaw, and is further provided on the rear side thereof. The reflection layer or the like is reversed so that the light is again incident on the brightness improving film, whereby the brightness improving film changes the direction of polarization in the light reflected and inverted between the two into a polarizable 兀* Since the polarized light in the polarization direction is transmitted to the polarizing element, it is possible to effectively use light such as a backlight in the image display of the liquid crystal display device, and the screen can be made bright. A diffusion plate may be provided between the brightness improvement and the above-mentioned reflective layer or the like. The light in the polarized state reflected by the shell-improving film is directed toward the reflecting layer or the like, and the diffusing plate provided is configured to uniformly diffuse the passing light while eliminating the polarized state and becoming a non-polarized state. In other words, the light in the natural light state is incident on the reflection layer or the like, and is reflected by the reflection layer or the like, and then again incident on the brightness improvement film by the diffusion plate. By providing a diffusing plate between the brightness improving film and the reflecting layer or the like to restore the polarized light to the original natural light state, the brightness of the display pupil surface can be maintained while reducing the unevenness of the brightness of the display screen, thereby providing A uniform and bright picture. By providing the diffusing plate, the number of times of repeated reflection of the primary incident light can be appropriately increased, and a uniform bright display screen can be provided by the diffusion function of the diffusing plate. 135469.doc -48- 200925228 As the above-mentioned twist-improving film, for example, a multilayer film of a dielectric or a multilayer laminated body of a film having different refractive index anisotropy can be used to transmit a linear polarized light of a specific polarizing axis. Any other light, such as an alignment film of a cholesteric liquid crystal polymer or an alignment liquid crystal layer supported on the film substrate, which exhibits any of the left-handed or right-handed circular light, and reflects other light. A suitable film such as a characteristic. Therefore, by using the brightness improving film of the type that transmits the linearly polarized light of the specific polarization axis described above, the transmitted light is incident on the polarizing plate directly in the direction coincident with the polarization axis, and the absorption loss caused by the polarizing plate can be suppressed. And the light is transmitted efficiently. On the other hand, a brightness improving film of a type such as a cholesteric liquid crystal layer that transmits circularly polarized light can directly enter light onto the polarizing element, but it is preferable to pass the phase difference plate from the viewpoint of suppressing absorption loss. The circularly polarized light is linearly polarized and incident on the polarizing plate. Further, by using a quarter-wave plate as the phase difference plate, circularly polarized light can be converted into linearly polarized light. A phase difference plate that functions as a quarter-wave plate in a wide wavelength such as a visible light region, for example, a phase difference plate and a display that function as a quarter-wave plate with light-colored light having a wavelength of 55 〇 nm The phase difference layer of the other phase difference characteristics is obtained, for example, as a method in which the phase difference layers functioning as the 1/2 wavelength plate overlap. Therefore, the phase difference plate disposed between the polarizing plate and the brightness improving film may include one or two or more layers of retardation layers. Further, the 'cholesteric liquid crystal layer' may be combined with materials having different reflection wavelengths to form an arrangement structure in which two or more layers are overlapped, thereby obtaining a circularly polarized light in a wide wavelength range such as a visible light region. Based on 135469.doc • 49- 200925228 This results in a wide circular wavelength range of transmitted circular polarization. Further, the polarizing plate may be formed by laminating a polarizing plate and two or more optical layers as in the above-described polarizing-separating polarizing plate. Therefore, a reflection type rounded polarizing plate or a semi-transmissive elliptically polarizing plate obtained by combining the above-described reflective polarizing plate or semi-transmissive polarizing plate and retardation plate may be used. The optical film in which the optical layer is laminated on the polarizing plate can be formed by sequentially stacking layers in a manufacturing process such as a liquid crystal display device, but the film is laminated in advance to form an optical film for quality stability or assembly operation. It is excellent in terms of other aspects, and therefore has an advantage of being able to improve the manufacturing steps of a liquid crystal display device or the like. A suitable bonding means such as an adhesive layer can be used in the laminate. When the polarizing plate is brought into contact with another optical layer, the optical axis of the polarizing plate can be set to an appropriate arrangement angle according to the target phase difference characteristic or the like. Further, each layer such as an optical film or an adhesive layer of the adhesive optical film of the present invention may be, for example, a salicylate-based compound, a benzophenol-based compound, or a benzotriazole-based compound. Or a method of treating an ultraviolet absorber such as a cyanoacrylate compound or a nickel-salt salt compound, and having an ultraviolet absorbing ability or the like. The adhesive optical film of the present invention can be suitably used for formation of various image display devices such as liquid crystal display devices. The formation of the liquid crystal display device can be carried out in accordance with the prior method. In other words, the liquid crystal display device can be generally formed by suitably assembling a liquid crystal cell, an adhesive optical film, and an optional illumination system, and the like, and incorporating the components into a driving circuit or the like. In the present invention, in addition to the adhesive type of the present invention. The optical film is not particularly limited, and may be formed according to the previous method. For the liquid crystal cell, for example, any type of liquid crystal such as TN type or STN type, 135 469. doc • 50-200925228 type, VA type, 1 ps type, etc. may be used. unit. A liquid crystal display device such as a liquid crystal display device in which an adhesive optical film is disposed on one side or both sides of a liquid crystal cell, or a backlight or a reflector in an illumination system can be used. In this case, the optical pickup of the present invention may be disposed on one side or both sides of the liquid crystal cell. When the optical film is provided on both sides, the same or the same may be used. Further, when forming a liquid crystal display* device, one or two or more layers such as a diffusion plate antiglare layer, an antireflection film, a protective plate, a prism array, a lens array ©, a light diffusing plate, and a backlight can be disposed at appropriate positions. And other suitable components. Then, an organic electroluminescence device (organic rainbow display device) will be described. The optical tweezers (polarizer or the like) of the present invention can also be used in an organic EL display device. In general, an organic EL display device is formed by sequentially laminating a transparent electrode, an organic light-emitting layer, and a metal electrode on a transparent substrate to form an illuminant (having an electroluminescence). Here, the organic light-emitting layer is a laminate of various organic thin films, and for example, a laminate comprising a hole-laying layer such as a triphenylamine derivative and a light-emitting layer containing a fluorescent organic solid such as ruthenium or the like, or The light-emitting layer is composed of a laminate of an electron-buried layer containing a perylene derivative or the like, or a laminate of the hole-laying layer, the light-emitting layer, and the electron-laying layer. The organic EL display device emits light by the following principle: by applying a voltage on the transparent electrode and the metal electrode, the energy generated by the implantation of the hole and the electrons in the organic light-emitting layer by the recombination of the holes and the electrons ignites the firefly. A light substance that emits light when the excited fluorescent substance returns to the ground state. The re-junction mechanism in the middle is the same as that of a general diode. It can also be inferred that the current and the strong non-linear light intensity accompanying the rectification are relatively dominant with respect to the applied electric power. In the organic EL display device, in order to remove the light emission in the organic light-emitting layer, the electrode of the square is required to be transparent. Generally, a transparent electrode formed of a transparent conductor such as indium tin oxide (rib) is used as an anode. On the other hand, in order to facilitate the electron implantation, the hairy tree is raised, and the i 7b emission rate is important because a material having a small work function is used in the cathode, and a metal electrode such as Mg or Al_u is usually used. ❹

In the organic anal display device having such a configuration, the organic light-emitting layer is formed of an extremely thin film having a thickness of about H) nm. Therefore, the organic light-emitting layer is also the same as the transparent electrode, so that the light is substantially completely transmitted. As a result, the light is emitted from the surface of the transparent substrate when the light is not emitted, and the light reflected by the transparent electrode and the organic light-emitting layer on the metal electrode is again emitted toward the surface side of the transparent substrate. Therefore, when the light is recognized from the outside, the organic EL display The display surface of the device is like a mirror surface. In an organic £1 display device including an organic electroluminescence device, a polarizing plate may be disposed on a surface side of the transparent electrode, and a phase difference plate may be disposed between the transparent electrode and the polarizing plate, and the organic electroluminescent body is disposed. A transparent electrode is provided on the surface side of the organic light-emitting layer that emits light by applying a voltage, and a metal electrode is provided on the back side of the organic light-emitting layer. Since the retardation plate and the polarizing plate have a function of causing the light reflected from the outside to be reflected by the metal electrode to be polarized, the polarizing action has an effect that the mirror surface of the metal electrode cannot be recognized from the outside β. In particular, when the retardation plate is formed by a quarter-wavelength plate and the angle between the polarizing plate and the polarization direction of the phase difference plate is adjusted to π/4', the mirror surface of the metal electrode can be completely shielded. 135469.doc -52· 200925228 That is, the external light incident on the organic EL display device transmits only the linearly polarized light component due to the polarizing plate. This linearly polarized light is usually converted into an elliptical polarization by a phase difference plate. In particular, when the phase difference plate is a quarter wave plate and the angle between the polarizing plate and the polarization direction of the phase difference plate is π/4, it becomes circularly polarized. The circularly polarized light is transmitted through the transparent substrate, the transparent electrode, and the organic thin film, and is reflected by the metal electrode, and then again transmitted through the organic thin film, the transparent electrode, and the transparent substrate ′ by the phase difference plate to be linearly polarized. Since the linear polarized light is orthogonal to the polarizing direction of the polarizing plate, the polarizing plate is not transmitted. As a result, the mirror surface of the metal electrode can be completely shielded. EXAMPLES Hereinafter, the present invention will be specifically described by examples, but the present invention is not limited to the examples. Furthermore, the parts and % in each case are based on the weight basis. The evaluation items in the examples and the like were measured in the following manner. <Measurement of Weight Average Molecular Weight> The weight average molecular weight of the obtained (meth)acrylic acid polymer was measured by GPC (gel permeation chromatography). The sample was obtained by dissolving a sample in dimethyl decylamine to prepare a solution of 0.1% by weight, and after allowing it to stand overnight, it was filtered by a membrane filter of 0.45 μm to obtain a mash.

• Analytical device: manufactured by Tosoh Corporation, HLC-8120GPC 'Tube: manufactured by Tosoh Corporation' Super AWM-H, AW4000, AW2500 • Column size. Each 6.0mm<j>x150 mm • Lysate: 30 mM-bromination , 30 mM_phosphoric acid dimercaptomethylamine solution 135469.doc 53· 200925228 . Flow rate: 0.4 ml / min. Detector: differential refractometer (RI). Column temperature: 40 ° C. Injection volume: 20 Μΐ (Production of polarizing plate) A polyvinyl alcohol film having a thickness of 80 μm was placed between rolls having different speed ratios at 30 ° C and 0.3 ° /. Dyeing in a concentration of iodine solution for 1 minute and extending to 3 times on one side. Thereafter, the film was stretched while being immersed in an aqueous solution containing 4% of boric acid and 1% by weight of potassium iodide at 60 ° C for 5 minutes while the total stretching ratio was ό times. Then, it was washed by dipping for 10 seconds in an aqueous solution containing 3 % of potassium iodide at a concentration of 5% and then at 5 Torr. The underside was dried for 4 minutes to obtain a polarizing element. On the both surfaces of the polarizing element, a saponified thick 8-inch yttrium triacetate cellulose film was bonded to the both sides of the polarizing element to prepare a polarizing plate. Production Example 1 <Modulation of acrylic acid polymer> In a four-necked flask equipped with a stirring blade, a thermometer, a nitrogen gas introduction tube, and a cooler, '99 parts of butyl acrylate, 0.1 part of yttrium acrylate, Ν-dimethylaminoethyl ester, 〇. A portion of 2,2'-azobisisobutyronitrile (1 part) of 2,2'-azobisisobutyronitrile, as a polymerization initiator, and 200 parts of ethyl acetate were put together, and nitrogen gas was introduced while stirring slowly. Nitrogen replacement was carried out, and thereafter, the liquid temperature in the flask was maintained at 601: in the vicinity, and polymerization reaction was carried out for 6 hours to prepare an acrylic polymer solution. The acrylic polymer had a weight average molecular weight of 2.05 million. 135469.doc • 54· 200925228 Production Examples 2 to 14 and Comparative Production Examples 77 In the production example 1, in addition to at least one of the types and amounts of the monomer components as shown in Table 2, The acrylic polymer solution was prepared in the same manner as in Production Example 1. Here, in Production Example 14, toluene was used instead of ethyl acetate as a solvent. The weight average molecular weight of the acrylic polymer obtained in each example is shown in Table 2. Example 1 (Preparation of a polarizing plate with an adhesive layer) A 100 parts of a solid component of the acrylic polymer solution obtained in Production Example 1 was prepared, and a substituted benzoic acid as a crosslinking agent was prepared.酿 ( (made by Nippon Oil Co., Ltd., Nyper BMT40) 0.3 parts, dimethoprim toluene diisocyanate (manufactured by Japan Polyurethane Industry Co., Ltd. 'Coronate L) 0.2 parts and decane coupling agent (Shin-Etsu Chemical Co., Ltd. Manufacture, KBM573) 0.1 part of an acrylic adhesive solution. Then, the acrylic adhesive solution was applied to one side of a polyethylene terephthalate (pET) film (manufactured by Mitsubishi Chemical Polyester Film Co., Ltd., MRF38) which was subjected to polyfluorination treatment as a spacer. On the (polyoxygenated surface), the thickness of the adhesive layer after drying was set to 2 pm, and dried at 155 ° C for 3 minutes (180 seconds) to form an adhesive layer. The adhesive layer was bonded to a polarizing plate and transferred to prepare a polarizing plate with an adhesive layer. Examples 2 to 15 and Comparative Examples 1 to 8 In the first embodiment, the type of the acrylic polymer solution used in preparing the acrylic pressure-sensitive adhesive solution, the type or amount of the crosslinking agent, and the amount of decane 135469.doc were 55-200925228 The type or coupling amount of the coupling agent was changed to that shown in Table 3, and a polarizing plate with an adhesive layer was produced in the same manner as in Example 1. Further, in Comparative Example 7, 'in the preparation of the acrylic acid-based adhesive solution, in addition to the crosslinking agent and the hydrazine: coupling agent, an acrylic oligomer (weight average molecular weight of 3GGG 'East Asian Synthetic Co., Ltd.) was also formulated. Ltd. &, 1000) 15 copies. Production Example 5 to 22, and Comparative Production Example 8 to u <Preparation of Acrylic Polymer> In Production Example 1, except for at least one of the type and amount of the monomer component, as shown in Table 2, Further, an acrylic polymer solution was prepared in the same manner as in the production example. The weight average molecular weight of the acrylic polymer obtained in each example is shown in Table 2. Example 16 (Preparation of a polarizing plate with an adhesive layer) A solid component of 100 parts of the acrylic polymer solution obtained in Production Example 15 was prepared, and a substituted benzoquinone as a crosslinking agent was prepared.醯 (manufactured by Nippon Oil & Fats Co., Ltd., Nyper BMT40) 0.3 parts, trimethylolpropane phthalic diphenyl cyanide (manufactured by Nippon Polyurethane Industry Co., Ltd., Coronate L) 0.1 part and decane coupling agent (manufactured by Shin-Etsu Chemical Co., Ltd.) , KBM403) 0.1 part of an acrylic adhesive solution. Then, the acrylic adhesive solution was applied to one side of a polyethylene terephthalate (PET) film (MRF3 8 manufactured by Mitsubishi Chemical Polyester Film Co., Ltd.) which was subjected to polyfluorination treatment. After drying, the adhesive layer 135469.doc -56- 200925228 has a thickness of 25 μm, and is dried at 8 ° C for 8 sec to form an adhesive layer. The adhesive layer is attached to a polarizing plate for transfer. A polarizing plate with an adhesive layer was prepared. Examples 1 to 28, and Comparative Examples 9 to 19 In the first embodiment, the type of the acrylic acid-based polymer solution used in the preparation of the acrylic adhesive solution was The type of the crosslinking agent, the amount of the crosslinking agent used, the amount of the decane coupling agent used, and the drying conditions (temperature, time) were changed as shown in Table 3, except that the adhesive layer was prepared in the same manner as in Example 制作.偏 Polarized plate. The polarizing plate (sample) with the adhesive layer attached to the spacers obtained in the above examples and comparative examples was evaluated as follows. The evaluation results are shown in Table 4 and Table 5. Determination of initial adhesion force> After cutting to a width of 25 mm, the spacer was peeled off, and then attached to a non-existing glass (c〇rning company@manufacturing, 1737) with a thickness of 7 mm by a roller of 2 kg, and attached. The autoclave of 〇〇c and 〇5 Mpa was treated for 15 minutes, and then aged at 23 ° C for 1 hour. The peeling angle was 18 用 with a tensile tester, and the sample was peeled off at a peeling speed of 300 mm/min. The contact force (N/25 mm) was measured. <Measurement of the adhesion force after 60 ° C / 48 hours > After cutting the above sample to a width of 25 mm, the spacer was peeled off, and then it was rolled with a roller of 2 kg. The glass was pressed and pressed on a 7 mm thick glass (manufactured by Corning, Inc., 1737) and attached in a reciprocating manner. It was treated with an autoclave at 5 ° C and 0.5 MPa for 15 minutes, and then cured at 60 ° C for 48 hours. For the 135469.doc -57- 200925228 tensile tester, the peeling angle was 18 〇, and the peeling speed was 3 〇〇mm/min. The adhesion force (N/25 mm) when the sample was peeled off was measured. Subprocessability> After cutting the above sample to a width of 25 mm, the spacer was peeled off and then pressed with 2 kg. Yu Houzhen. 7 mm of non-existing glass (manufactured by Corning's, 1737) was attached to each other and then cured at 23 ° C for 1 hour. The tensile tester was used to visually evaluate the peeling angle on the following basis. When the sample was peeled at 180° and the peeling speed was 3〇〇mm/min, the adhesion force © (N/25 mm) and the state of the glass surface. ◎: no paste remained and peeled off (continuation force: less than 1 〇N/25 mm) 0 〇: No paste remains and can be peeled off, but peeling is slightly difficult (adhesive force: 10 N/25 mm or more and less than i5 N/25 mm). Δ: no paste remains and can be peeled off, but peeling is difficult (adhesion force: 15 N/25 mm or more). x: It is said that there is a paste remaining. χ X: A paste remains. <Durability> After the above sample was cut into 320 mm x 240 mm, the spacer was peeled off, and then attached to an alkali-free glass (manufactured by Corning, Inc., 1737) having a thickness of 0.7 mm, using 50 ° C, 0.5 MPa. The autoclave was treated for 15 minutes to completely separate the above sample from the alkali-free glass. The sample which had been subjected to this treatment was at 80 ° C and 90 °C. (:, 100 ° C, 60 ° C / 90% RH, 60 ° C / 95% RH conditions for 500 hours of treatment, and then visually evaluated foaming on the following basis, 135469.doc • 58 · 200925228 peeling, floating ◎: No foaming or peeling. 〇: It is confirmed that foaming does not affect the visibility (maximum diameter is less than 100 μm). 〇X: It is confirmed that foaming (maximum diameter is 100 μm or more) and peeling. « <gel fraction>

Applying each of the adhesive compositions before the sample to the polyethylene terephthalate film having the polyoxygenation treatment, the thickness after drying is the same as that of the respective examples (20 μm or 25 μm). After coating, the adhesive layer was formed by hardening treatment under the same drying conditions (temperature, time) as in each example, and further placed at a temperature of 23 C and a humidity of 65% RH for 1 hour, and then the adhesive layer was measured. Gel fraction. The gel fraction is obtained by taking the above-mentioned adhesive layer about 〇.2 g 'with a pre-measured weight (Wa) of a fluororesin (TEMISH NTF-1122, manufactured by Nippon Electric Co., Ltd.) so as not to make an adhesive layer. After binding, the weight (Wb) was measured, and it was immersed in about 4 ml of ethyl acetate at 23 ° C for 7 days to extract a soluble component. Thereafter, the fluororesin containing the adhesive layer was taken out and dried on the aluminum cup at 13 (rc for 2 hours, and the weight (Wc) of the fluororesin containing the adhesive layer to remove the soluble component was measured. The gel fraction of the adhesive layer was determined according to the following formula (heavy gel fraction (% by weight (Mc, a) / (Wb_·)} χ i 〇〇 < coating productivity> About gel fraction Rate A The evaluation score, drying time B, and drying temperature c were respectively evaluated according to the table! According to the value obtained by AxBxC, the evaluation was performed on the following basis: 135469.doc -59- 200925228. 〇: The evaluation was divided into 20 or more Δ: Evaluation points 5 or more and 19 or less χ : 4 or less [Table 1]

Gel fraction A (% by weight) 90 ~ 95 80 ~ less than 90 70 ~ less than 80 60 ~ less than 70 50 ~ less than 60 less than 50 evaluation points I 7 Τ

<Processability> Drying time B (seconds) 30^ 45 80 120 180

Drying temperature C 80 or less exceeds 80 to 120 or less --------; _ more than 120 to 160 or less CC) After the above sample is prepared, it is punched out within 24 hours into a square sample having a length of _, The operator enters by visually touching the hand

Order observation: Determine whether there is adhesiveness on the side of the polarizer. χ, judge whether the surface of the polarizing plate is made of an adhesive; ϋ The following criteria are used to evaluate the adhesion and dirt. 〇: Any one of the 100 tablets with a sticky feeling and dirt has a bract. △. There are 1 to 5 pieces of any of the adhesives and dirt in the 1 tablet. There are more than 6 of the .100 sheets with adhesiveness and dirt. <Peel force to spacer> After the sample was cut to have a width of 5 〇 _ and a length of 1 〇〇 _, the peeling angle was 180 for the tensile tester. Peeling speed was 300 mm/min from the sample stripping 135469.doc -60- 200925228 The peel force (N/50 mm) from the spacer was measured. The peeling force is preferably 0.05 to 0.1 N/5 0 mm, more preferably 0.05 to 0.09 N/50 mm. If the peeling force is less than 0.05, the problem that the spacer floats from the adhesive layer of the adhesive optical film is likely to occur during the processing. On the other hand, if the peeling force exceeds 0.1 N/50 mm, the panel manufacturer In other words, when the spacer is peeled off from the adhesive layer of the adhesive optical film, light peeling becomes difficult, and productivity is deteriorated. <Peeling workability of the spacer> Ο The condition of the separator was measured by the automatic peeling device (manufactured by Nitto Denko Co., Ltd.), and the measurement was performed based on the following criteria. 〇: 0 of 100 tablets failed. X: More than 1 of 100 tablets failed. [Table 2] Monomer component weight average molecular weight (χΙΟ4) (methyl) Acrylic acid alkyl vinegar containing tertiary amine group monomer containing nitrogen other than tertiary amine group carboxyl group-containing monomer containing hydroxyl 1 f ^ Single t Other monomer BA (parts) DMAEA (parts) DMAPAA (parts) ACMO (parts) AAM (parts) AA (parts) 4HBA (parts) 2HEA (parts) PEA (parts) Manufacturing Example 1 99.7 0.1 - • - 0,1 0.1 - - 205 Production Example 2 99.1 0.3 - - 0.3 0.3 - . 180 Production Example 3 98.55 0.45 - - - 0.5 0.5 - - 193 Manufacturing Example 4 99.7 - 0.1 - - 0.1 0.1 - . 200 Manufacturing Example 5 99.1 - 0.3 - - 0.3 0.3 - - 198 Production Example 6 98,65 - 0.45 - - 0.45 0.45 - - 188 Production Example 7 99.4 0.3 - - - 0.3 - - 195 Production Example 8 99.4 0.3 - - _ - 0.3 - - 210 Manufacturing Example 9 99.7 0.3 - - - . . - 179 Manufacturing Example 10 99.1 0.3 - - - 0.3 - 0.3 - 183 Manufacturing Example 11 69.1 0.3 - - 0.3 0.3 - 30 177 Manufacturing Example 12 97.9 1.5 - - - 0.3 0.3 - - 176 Manufacturing Example 13 95.5 1.5 - - - 1.5 1.5 - - 181 Manufacturing Example 14 99.1 0.3 - - - 0.3 0.3 - - 100 Comparative Manufacturing Example 1 98.65 - - 0,45 - 0.45 0.45 - 194 Comparative Manufacturing Example 2 99 - - - - - 1 - - 184 Comparative Manufacturing Example 3 99.4 - - - - 0.3 0.3 - - 194 Comparative Manufacturing Example 4 94.4 5 - - 0.3 0.3 - - 182 Comparative Manufacturing Example 5 97 - - - 2.5 - 0,5 - - 120 ❹ -61 - 135469.doc 200925228 Comparative Manufacturing Example 6 92 - . 5 2.9 0.1 . 178 Comparative Manufacturing Example 7 99 - - - - - - - - 193 Manufacturing Example 15 98.95 0.05 - • 1. • 205 Manufacturing Example 16 98.9 0.1 - - . - - 210 Manufacturing Example 17 98.5 0.5 - - - • - 189 Manufacturing Example 18 98 1 - - - - - 203 Manufacturing Example 19 98.95 - 0.05 - • - 221 Manufacturing Example 20 98.9 - 0.1 - - 1 - - 181 Manufacturing Example 21 98.8 - 0.2 - - 1 - - 192 Manufacturing Example 22 94.9 0.1 - 5 - 0.1 - 211 Comparative Manufacturing Example 8 99 • 1 • 184 Comparative Manufacturing Example 9 98.9 - - 0,1 - . 1 - - 214 Comparison Production Example 10 98 - - 1 - - 1 . - 226 Comparative Production Example 11 94.9 - - - - 5 - 0.1 - 206 The following is shown in Table 2, BA: butyl acrylate, DMAEA: N,N-dimethyl acrylate Aminoethyl ester, DMAPAA: N,N-dimethylaminopropyl © acrylamide, ACMO: N-propylene hydrazinomorph, AAM: acrylamide, AA: acrylic acid, 4HBA: 4-hydroxybutyl acrylate Ester, 2HEA: 2-hydroxyethyl acrylate, PEA: phenoxyethyl acrylate. [Table 3] Crosslinking agent type of acrylic polymer, amount of peroxyisoflurane-based crosslinking agent, decane coupling agent, other drying conditions *01 *02 *11 *12 *13 Temperature time (parts) (Parts) (parts) (parts) rc) (seconds) Example 1 Production Example 1 0.3 0.2 - 0.1 - - - 155 180 Example 2 Production Example 2 0.3 0.2 - 0.1 - - - 155 180 Example 3 Production Example 3 0.3 0.2 - 0.1 - - - 155 180 Example 4 Production Example 4 0.3 0.2 - 0.1 - - - 155 180 Example 5 Production Example 5 0.3 0.2 - 0.1 - - - 155 180 Example 6 Production Example 6 0.3 0.2 - 0.1 - - - 155 180 Example 7 Production Example 7 0.3 0.2 - 0.1 - - 155 180 Example 8 Production Example 8 0.3 0.2 - 0.1 - - - 155 180 Example 9 Production Example 9 0, 3 0.2 - 0.1 - - - 155 180 Example 10 Production Example 10 0.3 0.2 - 0.1 - - - 155 180 Example 11 Production Example 11 0.3 0.2 - 0.1 - - - 155 180 Example 12 Production Example 1 0.3 0.2 - - 0.1 - - 155 180 Example 13 Manufacture Example 12 0.3 0.2 - 0.1 - - - 155 180 Example 14 Production Example 13 0.3 0.2 - 0.1 - - - 155 180 Example 15 Production Example 14 0.3 0.2 - 0.1 - - - 155 180 Comparative Example 1 Comparative Production Example 1 0.3 0.2 - 0.1 - - - 155 180 Comparative Example 2 Comparative Production Example 2 0.3 - 0.2 - - 0.1 - 155 180 Comparative Example 3 Comparative Production Example 3 0.3 0.2 0.1 - - - 155 180 Comparative Example 4 Comparative Production Example 4 0.3 0.2 - 0.1 - - - 155 180 Comparative Example 5 Comparative Production Example 5 - 0.2 - 0.1 - - - 155 180 Comparative Example 6 Comparative Production Example 6 0.15 0.6 - - 0.1 - - 155 180 Comparative Example 7 Comparative Production Example 7 - 0.2 - 0.1 - - * Convergence 155 180 Comparative Example 8 Production Example 2 - 0.2 - 0.1 - - - 155 180

-62-135469.doc 200925228 Example 16 Production Example 15 0.3 0.1 - - 0.2 - - 100 1 ~ 80~ Example 17 Production Example 16 0.3 0.1 - - 0.2 - - 80 100 Example 18 Production Example 16 0.3 0.1 - - 0.2 - - 100 80 Example 19 Production Example 16 0.3 0.1 - - 0.2 - - 120 45 Example 20 Production Example 16 0.3 0.1 - - 0.2 - - 155 30 Example 21 Production Example 16 0.1 0.1 - - 0.2 - - 100 80 Example 22 Production Example 16 0.5 0.1 - - 0.2 - - 100 80 Example 23 Production Example Π 0.3 0.1 - - 0.2 - - 100 80 Example 24 Production Example 18 0.3 0.1 - - 0.2 - - 100 80 Example 25 Production Example 19 0.3 0.1 - - 0.2 - - 100 80 Example 26 Production Example 20 0.3 0.1 - - 0.2 - - 100 80 Example 27 Production Example 21 0.3 0.1 - - 0.2 - - 100 80 Example 28 Production Example 22 0.2 - - - 0.08 - - 100 80 Comparative Example 9 Comparative Production Example 8 0.3 0.1 - - 0.2 - - 100 80 Comparative Example 10 Comparative Production Example 8 0.3 0.1 - 0.2 - - 155 30 Comparative Example 11 Comparative Production Example 8 0.3 0.1 - - 0.2 - - 155 80 Comparative Example 12 Comparative Production Example 8 0.1 0,1 - - 0.2 - - 155 80 Comparative Example 13 Comparative Production Example 8 0.5 0.1 - - 0.2 - - 100 80 Comparative Example 14 Comparative Production Example 9 0.3 0.1 - - 0.2 - - 100 80 Comparative Example 15 Comparative Production Example 9 0.3 0.1 - - 0.2 - - 155 30 Comparative Example 16 Comparative Production Example 9 0.3 0.1 - - 0, 2 - - 155 80 Comparative Example 17 Comparative Production Example 10 0.3 0.1 - - 0.2 - - 100 80 Comparative Example 18 Comparative Production Example 11 0.2 - - - 0.08 - - 140 180 Comparative Example 19 Comparative Production Example 11 0.15 0.6 - - 0.1 Piano - 150 120 In Table 3, The oxides are substituted benzoquinone peroxide (manufactured by Nippon Oil & Fat Co., Ltd., Nyper BMT40). In the case of an isocyanate-based crosslinking agent, *01 is trimethylolpropane toluene diisocyanate (manufactured by Nippon Polyurethane Industry Co., Ltd., Coronate L), *02 is trishydroxypropyl propane phthalyl diisocyanate (Mitsui Takeda Made by Polyurethane Co., Ltd., Takenate D-11 0N). In the case of the decane coupling agent, *11 is KBM573 manufactured by Shin-Etsu Chemical Co., Ltd., and *12 is KBM403 manufactured by Shin-Etsu Chemical Co., Ltd., and is manufactured by A-100, a comprehensive research company. The * oligomer of the other additive of Comparative Example 7 was an acrylic oligomer (having a weight average molecular weight of 3,000, manufactured by Toagosei Co., Ltd., ARFONUP-1000) of 15 parts. 63- 135469.doc 200925228 [Inch ϊS anger 5 m 〇〇Ο 〇ο ο ο ο ο Ο ο ο ο 〇〇XXXX 〇X Ο ο Peel force for spacers (N/50 mm) 〇δ ο g Ο ο s ο ο 5 ο gdgdg ο ο ο ο ο ο ο ο ο ο . <<<< ltX Ο XX 蛴Φ 辁〇H fclfhif ψη ss % 〇s 00 σν 00 cs 〇\ S ΟΟ 00 SB cs ON 5; 00 ΓΛ (Ν Ό Ό (Ν yn yn X: X 〇. 2 s ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ Ο Ο ◎ ◎ ◎ Ο〇 ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ Η Ί Ί Ί ◎ ◎ ◎ ◎ ◎ ◎ ◎ 〇 〇 ◎ ◎ ◎ ◎ 〇 〇 ◎ ◎ 〇 〇 〇 lt 1 XX <3 X <! XX <3 ^ ? ® s Bead 1 P岔§7 to i/S Bud vd in 00 Ό wS ο vd ON οό F··* · Bu cn *Μ> (N d 00 σ< σν σΐ 卜 wS inch ' 1 Η ΓΛ ψ-^ ^r 〇s »η σ\ <Ν 寸 inch 00 00 σ\ <Ν rj CO σί in rn 1—^ — Ο) — 00 ΓΟ Ό) < Ν *—Μ »Τ) 00 — Ο) — ο »τί ο — 〇s ON 00 Os ΟΝ 00 00 00 (Ν 00 σ\ 00 CN 对Ο CN CO r—Η in CN ik m 寸嫁 Κ Κ 〇ΐΚ 00 Os ο ik 1 %: OJ i 鸯ίΚ ΓΛ ψ^· Army vs r-Η 1 - (Ν CO £ Magnetic JJ ν〇窠£ 卜 i2 00 a 135469.doc -64. 200925228

4MT work peeling workability ο 〇O o 〇ooo 0 0 〇0 oo ο XOX o 0 X o XX Peeling force for spacer 1 (N/50 mm) ι 0.07 ! 0.08 i 0.06 ! 0.07 0.08 0.06 0.09 0.07 0.06 0.07 0.07 0.08 0.08 0.05 0.09 ' 0.15 0.08 0.12 ! 0.07 0.08 0.16 1 0.07 0.16 0.25 Degree of loss of processable paste 〇oooo 〇oo 0 〇oo 〇XX o XXXX o X o 0 Pity productive _i 0 〇〇ooo 〇 Oo 〇0 oo <<< X <<<<< X < i Gel fraction (% by weight) s S3 5: % r- 00 S oo § S3 00 00 m 〇〇 00 CN s un Durability 1 60°C / 1 95% RH i ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 60〇C/90% RH ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ XXX ○ ◎ ◎ ◎ 90 ° C ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ XXXXX 0 0 0 ◎ ◎ ◎ 1 80 ° C _i ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ 1 Secondary processing i Paste residue 1 _^_1 0 〇o 0 oo 0 o < 0 〇〇o XXXXXXXXXXXXXXXXXX Next 1 (N/ 25 mm) | 60〇C/48 hours later o 1 10.2 | 10.8 1 1 ii.o 1 I 10.9 1 1 11.3 | Lio.i" 1 ίο-s 1 vS (NI 12.3 1 rn 14.8 i I223J 21-5 1 1 23.6 1 Art 1 18-2 1 L 16.6 1 1 18-3 1 1 20.2 I «Ν CN 23.4 Initial cs NO »nm »n CN iN wS »n oo »ri »ri vS 00 On OO <N 00 VO 〇\ \D 〇〇0^ LlO.5" : 11.2 | Embodiment 16 1 1 Example | | | Example 18 1 I Example 19 1 | Example 20 I j Example 21 | | Example 22 II Implementation Example 23 I j Example 24 1 | Example 25" | Example 26 1 L·*1 Example 27" | Example 28 | [Comparative Example 9" Comparative Example 10" 1 Comparative Example 111 1 Comparative Example 12 1 [ j匕Comparative Example 13” 1 Comparative Example 14 1 1 Comparative Example 15” Comparative Example 16” 1 Comparative Example 17” 1 Comparative Example 18 I 1 Comparative Example 19 I 135469.doc -65- 200925228 Table 4 and Table 5 The adhesive layer formed by the adhesive composition of the optical film of the present invention Foot secondary processability, durability, processability, and with respect to the spacer has a light releasability, having workability. Further, according to the present invention, as shown in the coating productivity of Table 5, the above-mentioned adhesive layer having a specific gel fraction can be obtained by a low-temperature, short-time drying condition. Further, although the coating productivity was not specifically shown in Table 4, the evaluation of the examples of Table 4 was classified into "5" or "6" as the evaluation of coating productivity was "eight".

135469.doc -66 -

Claims (1)

200925228 X. Patent application scope: 1. An adhesive composition for an optical film, which comprises: a (meth)acrylic polymer and a peroxide as a crosslinking agent, the above (meth)acrylic acid The polymer contains alkyl (meth)acrylate. Vinegar 45~99.99 by weight. /〇 and a monomer containing a tertiary amino group, 〇1 to 2% by weight, as a monomer unit, and the above-mentioned peroxide is 〇 with respect to 100 parts by weight of the (meth)acrylic polymer 01 to 2 parts by weight. The adhesive composition for an optical film according to claim 1, wherein the isocyanate crosslinking agent is further contained in an amount of 0.01 to 2 parts by weight based on 100 parts by weight of the above (fluorenyl) acrylic polymer. 3. The adhesive composition for an optical film according to claim 1, which further contains 1 to 2 parts by weight based on 1 part by weight of the above (meth)acrylic polymer. 4. The optical adhesive composition according to claim 1, wherein the (meth)acrylic polymer further contains 5% by weight of a mercapto group-containing monomer and/or a hydroxyl group-containing monomer 〇〇1 to 5 % by weight as a monomer 5. 6. An adhesive composition for an optical film according to Item 1, wherein the tertiary system containing a tertiary amino group (methyl) isomerized N, 'N•dimethylamine vinegar And / or N, N-dimethylaminopropyl (methyl) two thin amines. The adhesive composition for an optical film according to claim 1, wherein the (meth)acrylic polymer has an average weight of up to 3,000,000. The amount of the knife is 1 million. B 135469.doc 200925228 7 - An optical adhesive layer, the optical film of which is formed by an adhesive composition. 8. The adhesive layer for an optical film according to claim 7, wherein the adhesive layer has a gel fraction of 50 to 95% by weight. 9. The method for manufacturing an adhesive layer for solving the problem of claim 7 or claim 8, characterized in that: the optical adhesive combination according to any one of claims 1 to 6 is used. The material is coated on the substrate at a temperature of 7 〇 16 (the rc I treatment is used to harden it. _ is 3 〇 24 24 sec. into the adhesive optical film, which is characterized by: At least one side is formed with a layer of agent. Wei Ru is called the optical film for the item 7. The image display device uses a type of optical film. A piece of adhesive as claimed in Item 10 135469.doc 200925228 VII. Designated representative Figure·· (1) The representative representative of the case is: (none) (2) A brief description of the symbol of the representative figure: 8. If there is a chemical formula in this case, please disclose the chemical formula that best shows the characteristics of the invention: (none) 135469.doc