TW200911536A - Adhesive sheet for optical film, its manufacturing method, adhesive optical film and image display apparatus - Google Patents

Abstract

To provide an adhesive sheet for optical films and its manufacturing method which can mitigate the problem of visibility associated with the adhesive layer when applied to image display apparatuses, e.g. liquid-crystal display apparatuses. The adhesive sheet for optical films has an adhesive layer on a release sheet, and the surface roughness Ra of the adhesive layer on the release sheet is 2-150 nm. The adhesive sheet is manufactured through the process of applying a coating solution of an adhesive to a release sheet and the process of forming an adhesive layer by applying a first drying process at 30-80 DEG C and a wind speed of 0.5-15 m/s and the second drying process at 90-160 DEG C and a wind speed of 0.1-25 m/s to the adhesive coating solution applied.

Description

200911536 VII. Designated representative map: (1) The representative representative of the case is: (1). (2) Brief description of the symbol of the representative figure: 1 Release sheet 2 Adhesive layer 2a, 2b Adhesive layer surface A Adhesive sheet for optical film 8. If there is a chemical formula in this case ^ (None) 1 Please reveal the most Chemical formula showing the characteristics of the invention: 132035.doc 200911536 IX. Description of the invention: [Technical Field of the Invention] The present invention relates to an adhesive sheet for optical enamel and a method for producing the same. Further, the present invention relates to an adhesive optical film using the adhesive sheet for an optical film. Further, the present invention relates to a liquid crystal display device using the adhesive optical film, an organic EL (electroluminescence) display device, a CRT (Cathode Ray Tude), and a PDp (piasma msplay).

Image display device such as Panel, plasma display). The optical film may, for example, be a polarizing plate, a retardation film, an optical compensation film, a brightness enhancement film, or the like. [Prior Art] Clocks, mobile phones, PDAs (personal digital)' notebooks, PC monitors, dvd (digita丨versatile disc 'digital versatile discs) player, τν (TeleVision ' In a television or the like, a liquid crystal panel is used in a liquid crystal display device. In recent years, there has been an increasing demand for display characteristics such as improved brightness, high definition, and low reflection of an optical panel represented by a liquid crystal panel. Further, the requirements for the appearance of the optical film for the optical panel are also improved. When the above optical film is bonded to a liquid crystal cell, an adhesive is usually used. Further, in order to reduce the loss of light, the optical film and the liquid crystal cell or the optical film are often used to adhere the materials together. In this case, there is an advantage that the optical film is fixed without a drying step, and the adhesive film is usually an adhesive optical film which is provided on the optical film side as an adhesive layer in advance. I ' 132035.doc 200911536 > In the liquid crystal display device in which the above-mentioned optical film is applied to the above-mentioned optical film, in particular, the pen-type computer and the personal mine wall are used for electric power use. Since the liquid crystal display device is visually observed from the oblique direction, the problem of uneven coating of the adhesive layer may occur, which may have a large influence on the visibility. It is proposed to control the coating thickness and surface roughness of the dot layer. Example ▲ For example, the unevenness of the thickness of the adhesive layer provided on the polarizing plate or the like _ is improved by the reduction of the standard deviation in the high temperature and high temperature. 2 (Patent, 1). Further, it is proposed that the surface roughness of the release surface is controlled to form an adhesive layer on the smaller release substrate, and the adhesive layer is transferred onto the phase-preserving layer, thereby forming a surface roughness on the protective film. Controlled by a smaller one of the agent layers (Patent Document 2). (4) Even if the above patent documents are used, the visibility caused by the unevenness of the adhesive layer is improved. Patent Document 1: Japanese Unexamined Patent Publication No. Hei No. Hei No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. - ^ MS - ^ m * ', 'Adhesive sheet for optical film and method for producing the same, which can reduce the visibility problem associated with the adhesive layer when used in an image display device such as a liquid helium device. Further, the object of the present invention is to provide an adhesive optical film using the above optical sheet. Further, the present invention is an image display device using the above-mentioned adhesive optical film.技术 技术 035 035 035 035 035 035 035 035 132 035 132 035 035 035 035 035 035 035 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 132 The present invention relates to an optical film which has an adhesive layer attached to a release sheet, and which is characterized in that the adhesive layer on the release sheet is nm. The surface roughness (Ra) is 2 to 150. The present invention relates to a light | ^ # y which is characterized in that it comprises a method for producing a film for a film, and an adhesive is applied to the release sheet. The step of coating the liquid; performing the first step of the adhesive solution liquid of the above-mentioned adhesive, the temperature of 3 ° C, the speed of the wind, the temperature of the first coating, and the temperature of 9 〇 to 0.1 to 25 meters. Step of forming the adhesive layer in the second drying step of the second embodiment of the present invention relates to an adhesive optical film characterized in that it has an adhesive layer on the release sheet, and the surface of the layer is bonded with an optical film. , Adhesive film with adhesive test sheet, adhesive film, electrician, electrician, _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Combined with an optical film. Further, the present invention relates to an image display apparatus using at least one adhesive optical pickup which peels a release sheet from the above-mentioned adhesive optical film. EFFECTS OF THE INVENTION The inventors of the present invention have found that the surface roughness Ra of an adhesive which is bonded to an optical film is particularly perpendicular to the direction of the longer direction (orthogonal direction). Table 132035.doc 200911536 Surface roughness Ra It has a large impact on visibility. In the adhesive sheet for an optical film of the present invention, the surface roughness (Ra) of the surface of the adhesive layer provided on the release sheet is controlled to 2 to 150 nm, and the adhesive layer is formed without uneven coating. . The adhesive sheet for an optical film of the present invention is bonded to an optical film to produce an "adhesive layer surface having the above surface roughness" in an adhesive optical film. As described above, the formation of the optical layer adheres to the surface of the adhesive layer of the sheet, so that the deterioration of visibility by the adhesive layer is suppressed, and the visibility of the liquid crystal display device, particularly in the oblique direction, can be improved. [Embodiment] Hereinafter, the present invention will be described with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing an adhesive sheet A for an optical film of the present invention, which has an adhesive layer 2 on a release sheet. The surface roughness (113) of the surface 2a of the adhesive layer is 2 to 15 () nm. Fig. 2 shows an adhesive type optical film of the present invention, in which an adhesive layer surface 2a of an adhesive layer 2 of an adhesive sheet A for an optical film is bonded to an optical film 3. When the adhesive film 1 is applied to an image display device such as a liquid crystal display device, after peeling off the release sheet 1, the surface layer of the adhesive layer of the adhesive layer 2 (with the surface of the adhesive layer) 2a opposite side) is applied to various materials. In the adhesive sheet A for an optical film of the present invention, the surface roughness (Ra) of the surface of the adhesive layer is 2 to 150 nm. The above surface roughness (Ra) is preferably from 10 to 140 nm, more preferably from 2 Å to 12 Å, more preferably from 3 Å to 1 (8) nm. When the above surface roughness (Ra) exceeds 18 Å, the unevenness of the adhesive layer becomes remarkable, which has an adverse effect on visibility. On the other hand, when the above surface roughness (Ra) is less than 2 nm, the adhesion of the optical film is lowered, or 132035.doc 200911536 has a significant adverse effect on productivity. :: Less film substrate. As a constituent material of the film substrate, a polyolefin resin such as y 4 or polypropylene, a synthetic resin such as polyethylene terephthalate S, a poly-sand film, a rubber diol or a polyester resin such as a rubber diol may be used. Film 'corner knee sheet, paper, cloth cloth * woven fabric, net, foam sheet or metal V white 6 Hai 4 layer body, etc.; ^ g ^, Zi, Tian 4 body special. In the above-mentioned film substrate, the oxime I vinyl resin and the degree are usually HM25^4月曰, paper. The thickness of the film substrate is preferably 疋20~i〇〇 μηι, more preferably • 3U~8ϋ μπι. The film substrate of the release sheet may be provided on the side of the adhesive layer, and a release preventing layer of the release layer and/or the oligomer may be provided. The release layer ' can be formed by a suitable release agent such as an anthrone-based, a long-chain alkyl group, a fluorine-based or a molybdenum sulfide. The thickness of the release layer is appropriately set in consideration of the effect of the release. In general, from the viewpoint of operability such as flexibility, the thickness of 3 hai is preferably 20 (four) or less, more preferably 0.01 to 10 μηι, especially the county Λ ', 疋.1~5 μη1 Within the scope. As a method of forming the release layer, the method of forming the release layer is not carried out, and 丨ΚΒ + , · is limited to another one, and for example, a coating method, a spray method, a spin coating method, an on-line tube method, and a table Chubu method can be used. 4. Further, a vacuum vapor deposition method, a mineralization method, an ion thunder process, a soil + ^, ..., a haze pyrolysis method, a chemical plating method, an electroplating method, or the like can be used. In the case where the migration preventing layer and the release layer are further provided, it is preferred that the migration preventing layer be provided between the release layer and the film substrate of the release sheet as the migration preventing layer. It is formed by a suitable material for preventing the migration of the migration component in the substrate film of the release sheet (for example, the pulverized film), especially the low molecular weight 132035.doc 200911536 oligomer of the vinegar. As the material for forming the migration preventing layer, an inorganic substance or an organic substance or a composite material of these may be used. The thickness of the migration prevention layer can be appropriately set within the range of 〇〇1~2 〇. ' As the migration prevention layer 5 & 'fe', soil 'include' ΠΗ 仏 方法 方法 方法 方法 方法 方法 。 。 。 。 。 。 。 。 。 。 。 疋 疋 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 When the coating method, the spray method, the spin coating method, or the in-line coating method are used, an acrylic resin, an amino formic acid f, a tris-based resin, a trimeric amine resin, an epoxy resin, or the like can be used. The ionizing radiation hardening type resin or the above resin is mixed with alumina, cerium oxide, mica or the like. Further, when a vacuum deposition method, a sputtering method, an ion plating method, a spray pyrolysis method, a chemical plating method, or an electroplating method is used, gold, silver, platinum, palladium, copper, aluminum, nickel, chromium, titanium, or the like may be used. A metal oxide formed of iron, cobalt or tin, or an alloy thereof, or other metal compound formed of iodinated steel or the like. The adhesive for forming the adhesive layer is not particularly limited, and various adhesives such as a rubber-based adhesive, an acrylic adhesive, an urethane-based adhesive, and an anthrone-based adhesive can be used, but generally, colorless and transparent, and An acrylic adhesive having good adhesion to a liquid crystal cell or the like. The acrylic adhesive is an acrylic polymer having a monomer unit of an alkyl (meth)acrylate as a main matrix and a matrix polymer. Further, (meth)acrylate is referred to as acrylate and/or mercaptoacrylate, and the (mercapto) of the present invention has the same meaning. The number of carbon atoms of the (meth)acrylic acid-based vinegar which constitutes the main skeleton of the acrylic polymer is about 1 to 14, and as a specific example of the (mercapto)acrylic acid alkyl ester, (fluorenyl) acrylic acid can be exemplified. A 132035.doc 200911536 Ester, ethyl (meth)acrylate, propyl (meth)acrylate, isopropyl (meth)acrylate, n-butyl (meth)acrylate, isobutyl (meth)acrylate, Amyl (meth)acrylate, hexyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, octyl (meth)acrylate, isooctyl (meth)acrylate, (mercapto)acrylic acid An oxime ester, an isodecyl acrylate, a decyl acrylate (decyl) decyl decyl acrylate, an octadecyl (meth) acrylate, etc. Used alone or in combination. Preferred among these are alkyl (meth) acrylates having an alkyl group having 1 to 9 carbon atoms. In order to improve the adhesiveness or heat resistance, one or more kinds of monomers may be introduced by copolymerization in the above acrylic polymer. Specific examples of such a copolymerizable monomer include a carboxyl group-containing monomer, a hydroxyl group-containing monomer, a nitrogen-containing monomer (including a heterocyclic ring-containing monomer), and an aromatic monomer-containing monomer. Examples of the carboxyl group-containing monomer include acrylic acid, mercaptoacrylic acid, (mercapto) carboxyethyl acrylate, carboxy amyl (meth)acrylate, itaconic acid, maleic acid, fumaric acid, crotonic acid, and the like. . Preferred among these are acrylic acid and mercaptoacrylic acid. Examples of the hydroxyl group-containing monomer include 2-hydroxyethyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, and 6-hydroxyl (meth)acrylate. Hexyl ester, 8-hydroxyoctyl (meth)acrylate, 10-hydroxydecyl (meth)acrylate, 12-hydroxylauryl (meth)acrylate or (4-hydroxymethylcyclohexyl)-methylpropene Acid esters, etc. Further, examples of the nitrogen-containing monomer include maleimide, N-cyclohexylmaleimide, N-phenylmaleimide, and N-propenyl hydrazino; (methyl) Acrylamide, N,N-dimethyl(fluorenyl) acrylamide, N,N-diethyl 132035.doc 200911536 (meth) acrylamide, N-hexyl (meth) acrylamide, N - mercapto (mercapto) acrylamide, N-butyl (meth) acrylamide, N-butyl (meth) acrylamide or N-hydroxymethyl (decyl) acrylamide, N- (N-substituted) guanamine monomer such as methylolpropane (meth) acrylamide; aminoethyl (meth) acrylate, aminopropyl (meth) acrylate, (meth) acrylate N , N-dimethylaminoethyl ester, (tert-butylaminoethyl (meth)acrylate, 3-(3-«-pyridyl)propyl (meth) acrylate, etc. Alkoxyalkyl-based monomer; (mercapto) methoxyethyl acrylate, ethoxyethyl (meth) acrylate or the like (meth) acrylate alkoxyalkyl monomer; N-( Mercapto) propylene decyl sulfenyl succinimide or N-(methyl Acryl fluorenyl-6-oxyhexamethylene succinimide, N_(fluorenyl) propylene fluorenyl-8-oxy octadecyl succinimide, N-propylene oxime, etc. An example of a monomer that is modified by a monomer or the like. Examples of the aromatic-containing monomer include benzyl (meth) acrylate, phenyl (meth) acrylate, and phenoxyethyl (meth) acrylate. In addition to the above monomers, maleic anhydride-containing monomers such as maleic anhydride, itaconic anhydride, etc.; caprolactone adducts of acrylic acid; styrenesulfonic acid or allyl-% acid, 2-(A) Base) acrylamide 2, mercaptopropane sulfonic acid, (mercapto) acrylamide propane sulfonic acid, sulfopropyl (meth) acrylate, (meth) propylene sulfoxy sulfonic acid, etc. An acid group-containing monomer; a phosphate group-containing monomer such as 2-hydroxyethyl acryloyl phosphate or the like. Further, ethyl acetate S, ethyl propionate, and N-ethylene may be used. Pilophone, mercaptovinylpyrrolidone, vinylpyridine, vinylpiperidine, vinylpyrimidine, vinylpiperazine, vinylpyrazine, vinylpyrrolidine, vinylimiazole, vinyloxazole, Vinyl morpholine, N-vinyl carboxylic acid decylamine 132035.doc 200911536 class, styrene, α-methyl styrene, N-ethene caprolactam and other ethylene monomer; , cyano-acrylic acid I-based monomer such as methyl acrylonitrile, t-butyl methacrylate, glycidyl glycerol, etc. Polyacrylic acid polypropylene glycol, (methacrylic acid methacrylate, (meth)acrylic acid methoxypolypropylene glycol and other glycol-based acrylic acid vinegar monomer; (methyl) acrylic acid four gas biting methyl vinegar An acrylate monomer such as gas (meth)acrylic acid brewing, linaloyl (meth) acrylate vinegar or acrylic acid 2-methoxy ethoxylate. In view of good reactivity, it is preferred to use a monomer containing a warp group. Further, in terms of self-adhesion and durability, it is preferred to use C. The ratio of the above-mentioned copolymerized monomer in the acrylic polymer is not particularly limited, and is usually 50% by weight or less, preferably 〇, 1 to H) by weight. More preferably, it is 5 to 8 weight percent, and further preferably 1 to 6 weight percent. The average molecular weight of the propylene glycol polymer is not particularly limited, and the weight average molecular weight is preferably from about 300,000 to about 2.5 million. When the above acrylic polymer is produced, it can be produced by various well-known methods, and a radical polymerization method such as a bulk polymerization method, a solution polymerization method or a suspension polymerization method can be appropriately selected. As the radical polymerization initiator, various known examples of azo and peroxide can be used. The reaction temperature is usually about 5 〇 8 8 c, and the reaction time is 1 to 8 hours. Further, in the above production method, a solution polymerization method is preferred, and as a solvent for the acrylic polymer, ethyl acetate, toluene or the like is usually used. The adhesive forming the adhesive layer of the present invention may contain a crosslinking agent in addition to the matrix polymer 132035.doc -14- 200911536. The adhesion or durability of the optical film can be improved by the crosslinking agent, and the reliability at a high temperature or the shape of the adhesive itself can be maintained. When the matrix polymer is an acrylic polymer, an isocyanate type, an epoxy type, a peroxide type, a metal chelating agent type, an oxazoline type or the like can be suitably used as the crosslinking agent. These crosslinking agents may be used alone or in combination of two or more. An isocyanate type crosslinking agent uses an isocyanate compound. Examples of the isocyanate compound include toluene diisocyanate, chlorophenylene diisocyanate, hexamethylene diisocyanate, tetramethylene diisocyanate, isophorone monoisocyanate Sic酉a, and this dimethyl diisocyanate. An isocyanate monomer obtained by adding an isocyanate monomer such as an acid, a diphenylmethyl diisocyanate or a hydrogenated diphenylmethane diisocyanate; and an isocyanate compound obtained by adding the isocyanate monomer to trimethylolpropane or the like; Isocyanurate compound, biuret type compound, further known polyether polyol or polyester polyol, acrylic polyol, polybutadiene polyol, polyisoprene polyol, etc. are subjected to an addition reaction The resulting urethane prepolymer type isocyanic acid is intended to be used. The epoxy-based crosslinking agent may, for example, be a bisphenol-incorporated epichlorohydrin type epoxy resin. Further, examples of the epoxy-based crosslinking agent include ethylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether, glycerol diglycidyl ether, glycerol triglycidyl ether, and 1,6-hexanediol. Diglycidyl ether, trishydroxypropyl propane triglycidyl ether diglycidyl aniline, N, N, N, N, _ tetraglycidyl-m-benzodiazepine-amine, 1,3-double屮^_ diglycidylaminomethyl)cyclohexane, N,N,N',N'-tetraglycidylaminophenylmethane, triglycidyl isocyanurate, mN, N_ Diglycidylamine-based stupid base shrinkage 132035.doc 200911536: oil test, N,N-diglycidylmethylamine, and n,n-diglycidyl basic amine, and the like. As a peroxide 糸 crosslinker, you use various peroxides for your field & Examples of the peroxide include di(2-ethylhexyl)tetraperoxydicarbonate, di(4)-tert-butylcyclohexyl peroxydicarbonate, and dibutylation of peroxydibromide. Third butyl citrate (four), peroxypivalic acid third hexa (four), peroxyterpene citrate tributyl I, dilauroyl peroxide, di-n-octyl sulfhydryl peroxide, peroxyisobutyric acid U , 3,3·tetramethylbutyl, peroxy 2-ethylhexanoic acid U, 3,3-tetramethylbutyl ester, bis(4-mercaptophenylhydrazolyl) peroxide, second Mercapto peroxide, perbutyl isobutyric acid, tert-butyl vinegar, etc. Among these, it is particularly preferable to use di(4,t-butylcyclohexyl)peroxydicarbonate which is excellent in cross-linking reaction efficiency. , laurel-based peroxide, diphenyl hydrazine peroxide. The amount of the crosslinking agent used is Π) by weight relative to the weight of the propylene (tetra) polymer (10), and the following is preferably 〇〇1 〜5 parts by weight, and more preferably, .02 to 3 parts by weight. The use ratio of the crosslinking agent exceeds 10 parts by weight, and there is a concern that excessive crosslinking is carried out to lower the purity of the joint, which is not preferable. Further, it is also possible to use I' without departing from the scope of the present invention. The adhesive agent, the plasticizer, the glass fiber, the glass beads, the gold material, the coloring powder, etc. The formed filler, the pigment mixture, the agent, and the respective layers such as the ultraviolet absorber and the clearing agent are used. Among the above additives which contain fine particles and exhibit light diffusibility, it is preferred to formulate a decane coupling agent. As a decane couple 132035.doc 200911536 mixture, a compound having a double bond such as vinyl trimethoxy ke, '3' glycidoxypropyl trimethoxy sylvestre, 3' glycidoxypropyl group Methyldimethoxycarbazide, 2_(3,4-epoxycyclohexyl)ethyltrimethylmethanol, etc. having an epoxy structure-cutting compound; 3•aminopropyltrimethoxy-stone, called 2_ Amine-containing hydrazine compound such as aminoethyl)3-aminopropyltrimethoxylate, n-(2-aminoethyl)3-aminopropylmercaptodimethoxydecane; 3' chloropropyltrimethyl Oxysteryl oxane; trimethoxy oxalate 3 propylene methoxy methoxy dimethoxy oxalate, methacrylic acid oxypropyl triethoxy zexi, etc. a (meth)acrylic acid group-containing sulphur coupling agent; 3, an isocyanato propyl triethoxy group (tetra), an isocyanate (tetra) group-containing sinter coupling agent, and the like. The money coupling agent imparts durability, especially in a humidified environment. The amount of the coupling agent used is 1 part by weight or less, more preferably 0.00 part by weight, still more preferably 0.02 to 0.6 part by weight, based on (10) parts by weight of the base polymer. The adhesive sheet for an optical film of the present invention can be obtained by the steps of applying an adhesive coating liquid onto a release sheet, and forming an adhesive layer from the above-mentioned adhesive coating liquid. step. When the above coating step is carried out, an adhesive coating liquid is prepared. The adhesive coating solution can be either a solution or a dispersion. In the case of a solution, an aromatic solvent such as toluene or a vinegar solvent such as acid vinegar can be used as the solvent. The concentration of the adhesive coating liquid is usually adjusted to about 2 to 80% by weight, preferably adjusted to 5 to 5% by weight, and further preferably adjusted to 7.5 to 20% by weight. The method of applying the adhesive coating liquid onto the release sheet is not particularly limited to 132035.doc 200911536, and a die coating method such as a sealed edge mold or a slot die can be employed; reverse coating, gravure printing Cloth coating method, spin coating method, screen coating method, spray coating method, dip coating method, spray method, and the like. When the coating step of the above-mentioned adhesive coating liquid is introduced, the dry thickness of the formed adhesive layer can be appropriately adjusted, and the dry thickness of the adhesive layer is usually about 40 μπι, preferably 5 to 3. 〇 (4), enter * good is. Μ μιη. Then, the above-mentioned adhesive coating liquid applied to the release sheet is dried to form a surface roughness (an adhesive layer of 2 to 15 Å (10). The formation of the above-mentioned adhesive layer can be performed, for example) by The temperature is 3〇, the wind speed is 0.H5 meters/second, the second drying step is performed after the drying step, 'the temperature is %~(10).c, and the wind speed is 0.1 to 25 meters/second. a drying step of evaporating the solvent of the adhesive coating liquid and forming a surface of the adhesive layer having a surface roughness (Ra) of 2 to 150 nm. Then, using the second drying step " The adhesive layer having a surface roughness (Ra) of 2 to 150 nm is hardened (cured) to form an adhesive layer. The temperature of the first drying step is 30 to 8 (rc, preferably 4 to 7 〇. /, More preferably, it is 40 to 6 Gt: If the above temperature is less than 3 "c, the drying time of the solvent is too long, and the productivity is not good. On the other hand, when the temperature exceeds 8 〇. The fast method controls the surface of the adhesive layer to the above surface roughness (Ra). Moreover, the wind speed is 55 to 15 meters/second, preferably. It is 〇5~ι〇m/s, which is better than 5 meters/second. When the wind speed is less than 〇5 meters/second, 'the solvent drying time is too long' is not good in productivity. When the wind speed is faster than 15 meters / sec, the drying process is too fast, and the surface of the adhesive layer of 132035.doc *18· 200911536 cannot be controlled to the above surface roughness (Ra). For Qing, ~ 30 minutes or so, preferably 3 seconds to 2 minutes, preferably 45 seconds to minutes. Furthermore, the processing time in the drying step is based on the relationship with temperature and wind speed. Further, the surface of the adhesive layer is controlled to have the surface roughness (Ra). The temperature of the second drying step is 90 to 16 (rc, preferably 13 〇 to i6 〇 t, more preferably U5. If the above temperature is less than (4), the drying time of the solvent is too long, which is not good in productivity. On the other hand, when the temperature exceeds (10) c, the adhesive is colored, which is not preferable. Further, the wind speed is 1 to 25 meters/second. Preferably, it is 23 meters/second, and more preferably 5 to 2 meters/second. When the above wind speed is lower than 0.! meters/second, it dissolves. The drying time of the agent is too long, which is not good in the yield of I. On the other hand, when the wind speed is faster than 25 m/s, the film has a bad influence on the mobility of the film, which is not preferable. In the second drying step, The processing time is about 1G seconds to about 2G minutes, preferably 2 () seconds to 1 () minutes, more preferably 30 seconds to 3 minutes. Again, the processing time in the '2nd drying step, to take into account The relationship between the temperature and the wind speed is controlled, and the adhesive layer is cured (cured). In the above-described core drying step and the second drying step, as the mechanism for controlling the temperature: the above range, for example, an oven, a hot air blower, or the like can be used. Heating Xingkun, far ultraviolet heaters, etc. Further, in the second drying step "second drying step", the air blowing means for controlling the wind speed in the above range can be carried out by a counterflow type. The distance from the above-mentioned air blowing means is set to 1 〇 to 丨 (eight) (10), preferably 10 to 50 cm. The above wind speed can be reduced by a small anemometer. For the measurement of the wind speed, an anemometer was used to measure the wind speed at a position of 3 cm above the adhesive coating liquid applied to the release sheet of 132035.doc _ 19- 200911536. An anemometer, an anemometer MODEL1560/SYSTEM6243 made by Japanese kanomax (share). The adhesive sheet for an optical film of the present invention can be bonded to an optical film and used as an adhesive optical film. The adhesive layer of the adhesive sheet for an optical film is transferred to the optical film by the above-described bonding. When the adhesive type optical film is used for an image display device, after peeling off the release sheet, the exposed adhesive layer is bonded

Used in liquid crystal cells or other parts. It is particularly suitable for bonding to a display unit such as a liquid crystal cell. The optical film used for forming an image display device such as a liquid crystal display device is not particularly limited. For example, a polarizing plate can be cited as an optical iridium. The polarizing plate usually uses a polarizing film or a double-sided transparent protective film. The polarizing agent may, for example, be a polyethylene (tetra) film, a partially methylated polyethylene glycol 臈 'ethylene, a vinyl acetate vinegar copolymer, a partially-reactive film, a guanidine molecule, a absorbing (four) or two. A dichroic substance such as a coloring dye absorbs the early axis extension; a polyether based material such as a dehydrated material of polyvinyl alcohol or a processed material of polyvinyl chloride. Among these, it is preferred that the polyephthene alcohol film is a polarizer obtained by the thickness of the polyether-based film and the iM temple::. The photons of the polarizers are uniaxially stretched by the dyeing of the poly(4-) series of materials, and the partial precursors can be formed by the following aqueous solution of the side wind: "for example, 1 polyethylene is impregnated with After the main color, the moth is extended to 3 to 7 times the original length. It can also be seen in the cloud bath of the Nanji Temple. Furthermore, it is also possible to read the polyvinyl alcohol film before the dyeing according to J32035.doc •20-200911536, and wash the water in the water. #由双vinyl alcohol film for the joy of the eyes and the eyes of the water, this essence is cleaned by the dirt u (four) on the surface of the polyethylene film, the effect of π scale or anti-caking agent, also is right fly ^ borrow By swelling the polyvinyl alcohol-based film, it also has the effect of preventing dyeing unevenness and the like. It can be extended with iodine after dyeing, or it can be surface-dyed ffl ^ ift - -Λ. Λ The surface can be extended and extended, and then used to make ice. It can also be applied in an aqueous solution of boric acid sulphate #^ potassium iodide or in a water bath. There is no particular limitation on the extension method, either method. In the wet type and the dry type, it is known as a material constituting a transparent protective film. For example, the surface is made of a thermoplastic resin which is excellent in transparency, mechanical strength, thermal stability, water repellency, and orientation. As a specific example of such a thermoplastic resin, a cellulose resin such as a acetaminophen fiber or a urethane resin, a polyester resin, a ruthenium hard resin, a polysulfone resin, a polycarbonate resin, and a poly Indoleamine resin, tt quinone imide resin, polyolefin resin, (meth) acrylic acid resin, cyclic polyolefin tree wax (north-free gynecological tree

V grease), polyaryl vinegar resin, polystyrene resin, polyglycol resin, and mixtures thereof. Further, 'on one side of the polarizing plate, a transparent protective film is bonded via an adhesive layer', and on the other side, a (meth)acrylic acid, an amino carboxylic acid vinegar, or a acetoacetamide group is used. A curable resin such as formic acid I, epoxy or zephyr or a UV curable resin is used as a transparent protective film. Any suitable additive of W or higher may be contained in the transparent guarantee (4). The additive may, for example, be an ultraviolet absorber, an antioxidant, a lubricant, a plasticizer, a release agent, a coloring 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 50 to 1% by weight, more preferably 5 to 99%, 132,035.doc 21 · 200911536, and further preferably 60 to 98. %, especially preferably 70 to 97% by weight. When the content of the above thermoplastic resin in the transparent protective film is 5 重量% or less, the high transparency and the like which the thermoplastic resin originally has may not be sufficiently exhibited. Further, as the transparent protective film, a polymer film described in JP-A No. 2-343529 (WO01/37007); for example,

(A) A resin composition having a thermoplastic resin having a substituted and/or unsubstituted quinone imine group in the side bond and a thermoplastic resin having a substituted and/or unsubstituted phenyl group and a nitro group in the (B) side chain. Specific examples thereof include a film containing a resin composition of an alternating copolymer of isobutylene and N-methylmaleimide and an acrylonitrile styrene copolymer. As the film, a crucible formed of a mixed extrudate of a resin composition or the like can be used. Since these films have a small phase difference and a small photoelastic modulus, defects such as spots caused by distortion of the polarizing plate can be eliminated, and since the moisture permeability is small, the humidifying durability is excellent. The thickness of the transparent film 4 can be appropriately determined, but it is usually from 1 to 500 _, especially from 疋1 to 300 _, especially from the viewpoint of strength and operability. 5~2 〇〇 pottery around. The transparent protective film is particularly preferred when the thickness is from 5 to 150 claws. , Danbu, in the case of polarized photons and extended film protection, polarizer protection =, can be used on the back side of the watch using the same polymer material to form a 4 film 'can also be formed from different polymer materials Protective film. The transparent protective film of the present invention is preferably a polycarbonate resin, a cyclic flat, or a cellulose resin. At least a thin hydrocarbon (10) and an electron beam hardening type polarizing plate of the invention of the (meth)acrylic resin are used. The protective film shows a good adhesion to 132035.doc -22- 200911536. In particular, the adhesive for a polarizing plate of the present invention exhibits good adhesion to acryl eucalyptus which is difficult to satisfy the adhesion. Cellulose resin is cellulose and fat. Specific examples of such a cellulose ester-based tree can be mentioned as follows: fiber tone-fiber tone: ... 2 "曰, cellulose diacetate, cellulose tripropionate, cellulose cellulose triacetate.

Vitamin dipropionic acid s is intended. Among them, it is particularly preferable that there are many commercially available products of the vitamin triacetate, which are advantageous in terms of easy availability or cost. It is commercially available as cellulose triacetate. For example, the name of the product manufactured by Fujifilm Co., Ltd., ", -V-S〇·^ ..SH-SO..,. TD.80U^K", "KC series" manufactured by Ca. In general, the in-plane phase difference (four) of these fibers is almost zero, and the thickness direction phase difference (Rth) has about ~60 nm. Further, the cellulose resin film having a small phase difference in the thickness direction can be obtained by, for example, treating the above cellulose resin, such as polyethylene terephthalate coated with a solvent such as cyclopentanyl or methyl ethyl group. A base film such as a second material, a polypropylene, or a stainless steel is bonded to a common cellulose film, and dried by heating (m is dried by heating at 80 to 150 C for about 3 to 10 minutes), and the method of peeling off the substrate film is A solution obtained by dissolving a norbornene-based resin or a (meth)acrylic resin in a solvent such as % amyl or methyl ethyl hydrazine is applied onto a common fiber, a quasi-resin film, and dried by heating ( For example, it is heated to dry for about 1-3 minutes with 〜15 ,, and the method of peeling off the coating film thereafter. Further, as the cellulose resin film having a small phase difference in the thickness direction, a fatty acid cellulose resin film in which the degree of fat substitution is controlled can be used. In the commonly used three 132035.doc -23- 200911536 cellulose acetate, the degree of substitution of acetic acid is about 2. 8 . It is preferred to control the degree of substitution of acetamidine to 丨.8 to 2.7' to thereby narrow the Rth. #由上中 Acid-substituted cellulose resin is added with plasticizers such as dibutyl phthalate, p-xylanilide, acetaminophen citrate, etc., while Hanling is controlled to be small. The plasticizer is preferably added in an amount of 40 parts by weight or less, more preferably 丨 2 parts by weight, based on 100 parts by weight of the fatty acid cellulose-based resin, and preferably 1 to 15 parts by weight. As a specific example of the cyclic polyolefin resin, a norbornene-based resin is preferred. The cyclic polyolefin resin is a general term for a resin obtained by polymerizing a cyclic olefin as a polymerization unit, and is exemplified by, for example, Japanese Patent Laid-Open No. Hei No. 7, Japanese Patent Laid-Open No. Hei No. Hei No. Hei. The resin described in Kaikai No. 3-122137 or the like. Specific examples thereof include a ring-opening (co)polymer of a cyclic olefin, an addition polymer of a cyclic olefin, a copolymer of a cyclic olefin and an α-olefin such as ethylene or propylene (typically random) a copolymer), and a random polymer modified with an unsaturated carboxylic acid or a derivative thereof, and a hydride or the like. Specific examples of the cyclic olefin include a norbornene-based monomer. There are many kinds of cyclic polyolefin resin commercially available products. Specific examples include "ZE〇NEX" manufactured by Sakamoto Co., Ltd., "zeonor", trade name "ARTONn manufactured by JSR Co., Ltd., trade name "ORRUS" manufactured by TICONA, and products manufactured by Mitsui Chemicals Co., Ltd. Name "ApEL" As the (fluorenyl) acrylic resin, Tg (glass transition temperature) is preferably U5 ° C or more, more preferably 12 (rc or more, further preferably more than l2yc), especially good 130° C. or more. The Tg is set to 115. (: The above is used, and 132035.doc -24 to 200911536 is excellent in heat resistance of the polarizing plate. The upper limit of the above (fluorenyl) acrylic resin is not particularly limited. However, from the viewpoint of moldability, it is preferably 170 ° C or less. A film having an in-plane retardation (Re) and a thickness direction retardation (Rth) of almost zero can be formed from a (fluorenyl) acrylic resin. Any of the appropriate (meth)acrylic resins may be employed in the acrylic resin, and may be, for example, a poly(meth)acrylate such as polymethyl methacrylate or a mercapto group. Dilute oxime ester _(meth)acrylic acid copolymer, decyl methacrylate fluorenyl ruthenium acrylate copolymer, methacrylate acrylate-acrylate (meth)acrylic acid copolymer, (mercapto) acrylic acid Ester-styrene copolymer resin, etc., a polymer having a aliphatic % hydrocarbon group (for example, decyl methacrylate/cyclohexyl methacrylate copolymer, methyl methacrylate _ norbornene (meth) acrylate An ester copolymer or the like. Preferably, a poly(meth)acrylic acid C1-6 alkyl ester such as poly(methyl methacrylate) is used. More preferably, methyl methacrylate is used as a main component (50~) 1% by weight, preferably 7 〇 to 1 〇〇 by weight of the methacrylic acid methyl ester-based resin. Specific examples of the (meth)acrylic resin include Mitsubishi Rayon Co., Ltd. The (meth)acrylic resin having a ring structure in the molecule described in the ACRYPET VH or ACRYpET VrL2〇a, which is described in Japanese Patent Laid-Open Publication No. 2004-70296, which is obtained by intramolecular crosslinking or intramolecular cyclization. Tg(methyl)-propyl Acid-based resin as (Yue-yl) acrylic resin (Yue-yl) propan-lactone ring may also be used with the

It has a high degree of mechanical strength, and is carried out by a two-axis extension. </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> <RTIgt; (Methyl) having a lactone ring structure described in JP-A-2002-254544, JP-A-2002-254544, and JP-A-2002-254 Acrylic resin.

The (fluorenyl) acrylic resin having a lactone ring structure preferably has a cyclic structure represented by the following formula (Chemical Formula 1). [Chemical 1]

In the formula, R R and R each independently represent a hydrogen atom or an organic residue having a carbon number of 20 . Further, the organic residue may also contain an oxygen atom. General formula in the structure of a (fluorenyl) acrylic resin having an internal vinegar ring structure

(The ratio of the content of the ring structure is preferably 5 to 9 重量% by weight, more preferably 10 to 70% by weight, and 10 to 60% by weight is particularly good. It is 10 to 50% by weight. When the content of the inner ring structure of the (meth)acrylic resin having an internal ring structure is less than 5 weight percent, the sample is resistant. Solvent property and surface hardness may be insufficient. When the formula (Chemical Formula 1) of the (meth)acrylic resin having an internal vinegar ring structure has a content ratio of the inner ring structure of more than 90% by weight, It may be lacking in formability. 132035.doc •26- 200911536 The mass average molecular weight of the (meth)acrylic resin having a lactone ring structure is preferably from 1000 to 2,000,000, more preferably 5〇〇0~ 1 00000, further preferably 1000 to 500000, particularly preferably 50,000 to 500,000. When the mass average molecular weight deviates from the above range, it is considered from the viewpoint of moldability. Poor. (Mercapto) acrylic acid having a lactone ring structure Resin The Tg is preferably 115 C or more, more preferably 12 Å. (: Above, further preferably 125. (: It is particularly good at 130 〇 C on p. Since Tg is 115 t or more, for example, When the polarizing plate is used as a transparent protective film, it is a transparent protective film which is excellent in durability. The upper limit of the Tg of the (meth)acrylic resin having a lactone ring structure is not particularly limited, and from the viewpoint of moldability and the like, It is preferably 170 ° C. A (meth)acrylic resin having a lactone ring structure, a molded article obtained by injection molding, according to ASTM (American s〇ci kiss such as testing and Materials' American Society for Testing Materials The higher the total light transmittance measured by the method U of 7_1〇〇3, the better, preferably 85% or more, more preferably 88% or more, and the better is 9 ()% or more. Light transmittance is the basis of transparency. When the total light transmittance is less than 85%, the transparency may be lowered. The above transparent protective 臈 generally uses a front phase difference of less than 40 nm and a thickness direction phase difference of less than 80 nm. Transparent protective film. Frontal phase difference (4)

Re (nx-ny) xd to indicate. The thickness direction phase difference leg is represented by Rth=(nx_(4)X d. Further, the Nz coefficient is used to represent. [Where, the slow axis direction of the film, the fast and thin square ^@^J universal direction and the thickness direction of the refractive index are respectively疋 ny nz ' d (nm) is the film thickness. The direction of the slow axis is the direction of the refractive index of 132035.doc -27- 200911536 in the film plane. Moreover, it is better that the transparent protective film is not colored as much as possible. Good 疋 use the thickness difference of the phase difference is _9 〇 ~ +75 nm transparent protective film, can be used for the bran ώ J fine by using such a phase difference (foot (8) is _9 〇 nm ~ +75 nm transparent The cans win, w, the edge film of the coin and substantially eliminate the coloring plate caused by the transparent protective film. The phase difference (Rth) in the direction of the optical coloring thickness is further preferably 80 nm to +6 G nm, especially good. _7() order +45(10). In another aspect, as the transparent protective film, a phase difference having a phase difference of 4 〇 η 1 or more in the front phase p phase and/or a phase difference in the thickness direction of 8 〇 nm or more can be used. The front phase difference is usually controlled to a range of 4 〇 to · face, and the phase difference in the thickness direction is usually controlled to 8 〇 3 When a phase difference plate is used as the transparent protective film, the phase difference plate functions as a transparent protective film, so that it can be made thinner. As a phase plate, a single material can be cited. A biaxially or biaxially stretched birefringence crucible, an alignment film of a liquid crystal polymer, an alignment layer supporting a liquid crystal polymer by a film, etc. The thickness of the phase difference plate is also not particularly limited to 'normally 20 to 150 The polymer material may, for example, be polyvinyl alcohol, polyvinyl butyral, polymethylethylene squama, polyethyl acrylate vinegar, ethyl cellulose, propylene f cellulose, Cellulose, polycarbonate, polyarylate, polysulfone, poly-p-ethylene glycolate, polyethylene naphthalate, polyether sulfone, polyphenyl (tetra), polypyrene, polyaryl stone, Polyamide, polyimine, polyolefin, polyvinyl chloride, cellulose resin, cyclic polyolefin resin (norborning resin) s, S and other mono-systems, binary copolymers, graft copolymerization Substance, blend, etc. The polymer materials are extended by In the case of the liquid crystal polymer, for example, a linear atomic group (liquid crystal original) which imparts a conjugate property to the liquid crystal alignment property is introduced into the main object σ. A liquid crystal polymer of a main chain type or a side chain type which is formed by a chain or a side chain. The specific example of the main chain type liquid crystal polymer is exemplified by a bonding portion which imparts a bending force The liquid crystal is prepared, for example, a nematic-type polyacetal liquid crystalline polymer, a disc-type polymer, or a cholesteric polymer, etc. Specific examples of the side chain type liquid crystal polymer include a sulphate, Polyacrylic acid vinegar, polymethyl acrylate vinegar or polymalonic acid is used as the main chain skeleton' as a side chain with a spacer formed by a common atomic group and having a para-substituted ring imparting nematic alignment A polymer of a liquid crystal or the like formed by a compound unit. The liquid crystal polymer is carried out, for example, by a method of rubbing a film on the surface of a film such as polyimide or polyephthol which is formed on a glass plate, and a film of obliquely vaporized cerium oxide. A solution of the liquid crystalline polymer is developed on the alignment treatment surface and subjected to heat treatment. The phase difference plate may have an appropriate phase difference depending on, for example, the purpose of compensating for coloring or viewing angle due to birefringence of various wavelength plates or liquid crystal layers, or may be formed by stacking two or more kinds of phase difference plates to control the phase difference. Such as optical characteristics, etc. The phase difference plate can be selected and used according to various uses to satisfy nx=ny&gt;nz, nx&gt;ny&gt;nz, nx&gt;ny=nz &gt;nx&gt;nz&gt;ny&gt;nz=nx&gt;ny ^ nZ&gt;nx&gt;ny,nz&gt ;nx=ny relationship. Furthermore, ny=nz includes not only the case where 叮 is the same as the nz element, but also the case where the town is substantially the same as (10). For example, in the phase difference plate satisfying nx &gt; ny &gt; nz, it is preferable to use positive 132035.doc • 29- 200911536, the phase difference of the surface satisfies 40 to 100 nm, and the phase difference in the thickness direction satisfies ι 〇〇 32 〇 nm ' The Nz coefficient satisfies 1, 8 to 4.5. For example, in the phase difference plate (positive A plate) satisfying nx &gt; ny = nz, it is preferable to use a phase difference plate whose front phase difference satisfies 1 〇〇 to 2 〇〇 nm. For example, in the phase difference plate (negative a plate) satisfying nz = nx &gt; ny, it is preferable to use a phase difference plate whose front phase difference satisfies 1 〇〇 to 2 〇〇 nm. For example, in the phase difference plate satisfying nx &gt; nz &gt; ny, it is preferable to use a phase difference plate whose front phase difference satisfies 150 to 300 nm and whose Nz coefficient satisfies greater than 〇 to 0.7. Further, as described above, for example, nx = ny &gt; nz, nz &gt; nx &gt; ny or nz &gt; nx = ny can be used. The transparent protective film can be appropriately selected in accordance with a suitable liquid crystal display device. For example, in the case of VA (Vertical Alignment), including mva (Multi-domain Vertical Alignment) and PVA (Patterned Vertical Alignment), it is preferable that at least the polarizing plate is The transparent protective film on one side (unit side) has a phase difference. As a specific phase difference, a range of Re = 〇 ~ 24 〇 nm and O Rth = 0 to 500 nm is preferable. If the three-dimensional refractive index is used, it is better.

The film has a phase difference.

132035.doc •30· 200911536 yuan side) There is no phase difference. When there is 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 the upper and lower sides have a phase difference (for example, the upper side is 2, the lower side has no phase difference) or The upper side is a seesaw and the lower side is positive (3). It has a phase of moon shape and a good 疋 Re=_500~500 nm, nm range. "For the three-dimensional refractive index, it is preferable that Ί ny nz, nx &gt; nz &gt; ny, nz &gt; nx = ny, (cycling, z, positive C plate, positive a plate). Further, the above-mentioned phase difference can be additionally applied to a transparent protective tape having no phase difference to impart the above-described function. The transparent protective film ' can be surface-modified before the application of the adhesive: the adhesion between the net and the polarizer. Specific treatments include corona treatment, plasma treatment, under-layer imaginary, 泜 layer treatment, saponification treatment, and coupling agent treatment. It is also possible to perform hard-painting, anti-reflection treatment, 戎 一方 不 不 ί 卢 卢 : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : The surface of the board is subjected to damage or the like: the tree is attached to the surface of the edge film by an appropriate ultraviolet-ray curing, transparent (four) or sliding property such as an acrylic system, etc. 箄7 ^^ ^ α The temple forms a hard coat. The anti-reflection treatment system is 4t, ^b. The treatment performed by the P-first line can be realized by the ^ L ^ A of the anti-reflection enthalpy of the prior art. Moreover, the anti-adhesive treatment is to prevent the close connection with the adjacent layer (for example, the diffuser plate on the net source side). 132035.doc 200911536

Further, the purpose of the anti-glare treatment is to prevent external light from being reflected on the surface of the polarizing plate and to interfere with the visibility of the transmitted light of the polarizing plate, for example, by rough surface formation by using a spray method or an imprint processing method, and blending transparent particles. In a suitable manner, a fine concavo-convex structure is formed on the surface of the transparent protective film. As the fine particles contained in the formation of the surface fine uneven structure, for example, an oxide having an average particle diameter of 〇5 to 2 〇, containing oxidized stone, oxidized, titanium oxide, oxidized oxidized, tin oxide, indium oxide, or oxidized can be used. The mineral or oxidized material also has conductive inorganic fine particles, and transparent fine particles such as organic fine particles containing a crosslinked or uncrosslinked polymer. When the surface fine concavo-convex structure is formed, the fine particles and the phase material are formed into 100 parts by weight of the transparent resin having a fine surface uneven structure, and usually 2 to 7 Å by weight, preferably 5 to 50 parts by weight. The anti-glare layer may have a diffusion layer that diffuses light transmitted through the polarizing plate to expand the viewing angle or the like (a viewing angle expansion function, etc., the anti-reflection layer, the anti-adhesion layer, the diffusion layer, or the anti-glare layer, etc., may be provided in the anti-reflection layer. The transparent protective tape itself may be separately provided as an optical layer on a film different from the transparent protective film. There is no particular limitation on the adhesive layer used when bonding the above polarizer and the transparent protective film. It is preferable to use a water-based adhesive, a heat-based adhesive or a radical-curable adhesive, which is a water-based adhesive, a solvent-based, a heat-based (four), a self-curing type (electrohardening type, or an ultraviolet curing type). A polyvinyl alcohol type, a Ming type latex type, a polyamino phthalate type, an isocyanate type, etc. are mentioned. The said adhesive agent can contain various crosslinking agents. The catalyst and coupling agents can also be mix|blended. Various tackifiers, vinyl polys, epoxy and the above adhesives, UV absorption 132035.doc •32· 200911536 Also, stabilizers, hydrolysis stabilizers, etc. Stabilizers, etc. Metallized diterpene or a filler, such as a sulphuric acid, a dioxic cut, etc. The solid structure of the needle is then used in an amount of 〇1 to 20% by weight. As an optical film used in the adhesive type optical enamel of the present invention, In addition to the above-mentioned polarizing plate, it is also possible to separately use the phase difference plate (including the /2 or 1/4 wave plate) exemplified above. In addition, for example, a reflecting plate or a semi-transmissive plate, phase A differential plate (including a 1/2 or 1/4 wavelength plate), a viewing angle compensation film, a brightness enhancement film, and an optical layer that is sometimes used to form a liquid crystal display device, etc., which can be used alone as an optical film. In addition, it is also possible to use one or two or more layers on the polarizing plate when it is practical. ί, particularly, a polarizing plate is attached to a polarizing plate, and a reflective plate or a semi-transmissive reflecting plate is used to form a reflective polarizing film. a plate or a semi-transmissive polarizing plate; an elliptically polarizing plate or a circular polarizing plate formed by laminating a phase difference plate on a polarizing plate; a wide viewing angle polarizing plate formed by laminating a viewing angle compensation film on the polarizing plate; or on a polarizing plate In turn, the brightness is increased by the film The polarizing plate is a reflective liquid crystal display device in which a reflective layer is provided on a polarizing plate, and can be used to form a liquid crystal display device of a type that reflects incident light from a visual side (display side) and can be omitted. A light source such as a backlight has an advantage of being easy to reduce the thickness of the liquid crystal display device. When the reflective polarizing plate is formed, a reflective layer formed of a metal or the like may be attached to the surface by a transparent protective layer or a polarizing plate as needed. A specific example of the reflective polarizing plate can be exemplified as a reflective metal such as a reflective metal on the surface of the transparent protective film of the matte portion 132035.doc -33- 200911536. In the case where the transparent protective film contains fine particles to form a reflective layer having a fine uneven structure and a fine uneven structure thereon. The fine concavo-convex structure: the reflective layer diffuses the incident light by diffuse reflection, thereby preventing directivity or appearance, thereby suppressing the advantage of unevenness in light and dark, etc. The transparent protective film containing fine particles also has incident light and The reflected light of the incident light is transmitted in a desired manner to diffuse to further suppress the advantage of unevenness in light and dark. The formation of a reflective layer reflecting the fine concavo-convex structure of the fine (five) convex structure on the surface of the transparent protective film can be directly formed by, for example, a vacuum distillation method, an ionization method, a smelting method, or a plating method. The method of attaching a metal to the surface of the transparent protective layer is performed. Instead of directly attaching the reflecting plate to the transparent protective film of the polarizing plate, a reflective sheet formed by providing a reverse layer on a suitable film based on the transparent film may be used. Furthermore, since the reflective layer is formed of a metal, it is considered to be a transparent protective film from the viewpoint of preventing the reflectance from being lowered due to oxidation, thereby maintaining the initial reflectance for a long period of time or avoiding the need for a separate protective layer. Or a use form in which a polarizing plate or the like covers the state of the reflecting surface. Further, the above-mentioned "semi-transmissive type polarizing plate" can be obtained by forming a semi-transmissive reflective layer such as a semi-mirror which is formed by a reflective layer which emits light and transmits light. The semi-transmissive polarizing plate is usually disposed on the back side of the liquid crystal cell, and can form a liquid crystal display device of the following type, etc., when the liquid display device or the like is used in a relatively bright environment, the reflection comes from the visual side (display side). 132035.doc 34· 200911536 The image is displayed by light, and in a relatively dark environment, an image is displayed using a built-in light source such as a backlight built in the back side of the semi-transmissive polarizing plate. That is, the semi-transmissive polarizing plate can form a liquid crystal display device such as a τ type, that is, the energy used by the light source such as a backlight can be saved in a bright environment, and the built-in light source can be used in a relatively dark environment. . An elliptically polarizing plate or a circular polarizing plate in which a phase difference plate is laminated on a polarizing plate will be described. When changing the linearly polarized light to elliptically polarized or circularly polarized light, () or changing the elliptically polarized or circularly polarized light to linearly polarized light, or changing the direction of polarization of the linearly polarized light, a phase difference plate or the like is used. In particular, as a phase difference plate which changes linearly polarized light into circularly polarized light or changes circularly polarized light into linearly polarized light, a so-called quarter-wave plate (also referred to as a λ/4 plate) can be used. A 1/2 wavelength plate (also known as a λ/2 plate) is commonly used to change the direction of polarization of linearly polarized light. The elliptically polarizing plate can be effectively used to compensate (prevent) the coloring (blue or yellow) generated by the liquid crystal layer of the super-twisted nematic (STN) liquid crystal display device (j), thereby performing the above-mentioned In the case of white or black coloring, etc. Further, it is preferable to control the three-dimensional refractive index to compensate (prevent) the coloring which occurs when the face of the liquid crystal display device is observed obliquely. Therefore, the circular polarizing plate can be effectively used, for example. The function of preventing the reflection of the color of the image of the reflective liquid crystal display device of the color display image, and the like also has a function of preventing reflection. As a specific example of the phase difference plate, a pair of polycarbonate and poly a birefringent film formed by stretching a film formed of a suitable polymer such as vinyl alcohol, polystyrene, polymethyl methacrylate, polypropylene or other polyolefin, polyarylate or polyamine, or a liquid crystal polymer With 132035.doc -35- 200911536 to the film, the film supporting the alignment layer of the liquid crystal polymer, etc. The phase difference plate can be used to compensate for birefringence due to, for example, various wavelength plates or liquid crystal layers. In the case of a color difference, a viewing angle, or the like, an appropriate phase difference corresponding to the target, or an optical characteristic such as a phase difference may be controlled by laminating two or more kinds of phase difference plates, etc. Further, the above-mentioned rounding polarizing plate or reflection type expansion The circular polarizing plate is formed by laminating a polarizing plate or a reflective polarizing plate and a phase difference plate in an appropriate combination. Thus, a circular polarizing plate or the like may be a combination of a (reflective) polarizing plate and a phase difference plate. In the manufacturing process of the display device, a polarizing plate and a phase difference plate are laminated in this order, and as described above, an optical film such as an elliptically polarizing plate is formed in advance, which is excellent in quality stability or lamination workability. Therefore, it is possible to improve the manufacturing efficiency of the liquid crystal display device and the like, and the image of the liquid crystal display device is viewed from a slightly oblique direction of the liquid crystal display device. As such a viewing angle compensation phase difference plate, for example

132035.doc (j is used to expand the viewing angle of the film. -36- 200911536 and its contraction force due to heating, the polymer film is extended or / and shrinkage treatment, or the liquid crystal polymer is tilted Orientation, etc. As the original of the phase difference plate; ^ 42L takes the &amp; τ' He 枓 polymer, can use the same polymer as described in the above phase difference plate, can be used to prevent liquid crystal based An appropriate polymer for the purpose of coloring or the like due to a change in the viewing angle caused by the phase difference, or an angle of view for expanding the visual inspection, etc. Further, from the viewpoint of achieving a wide viewing angle of good vision, etc., it is preferable An optically compensated phase difference plate supporting an optically anisotropic layer formed of an alignment layer of a liquid crystal polymer, particularly an inclined alignment layer of a disc-type liquid crystal polymer, with a triethylene fluorene cellulose film is used. The polarizing plate which is formed together is usually used on the back side of the liquid crystal cell, and the brightness-increasing film is a film which exhibits the following characteristics, that is, a backlight which is caused by liquid crystal display cracking or the like. When the human side emits natural light, the linear polarized light of a specific partial light or the circularly polarized light of a specific direction is transmitted, and other light is transmitted, and the brightness is known: a polarizing plate which is laminated with the film and the polarizing plate Light from a light source such as a backlight is incident to obtain a transmitted light of a specific polarization state, and the light other than the specific polarization is not transmitted and reflected. This brightness is increased by the light reflected on the film surface. The reflective layer or the like is reversed and incident on the redundancy film again, and a part or all of the light is transmitted as a specific polarized state to increase the light transmitted through the brightness enhancement film, and the polarized light which is difficult to be absorbed by the polarizer is supplied. Increasing the amount of light that can be used for liquid crystal display image display or the like, thereby increasing the brightness, that is, the case where the light is incident from the back side of the liquid crystal cell by the backlight or the like without using the brightness enhancement film. Doc -37- 200911536

The light of the sunshade, which has a polarization direction that is inconsistent with the polarization axis of the polarizer, is substantially absorbed by the polarizer and thus cannot be transmitted through the polarizer. That is, although it varies depending on the characteristics of the polarizer used, about 5% of the light is absorbed by the polarizer, so the amount of light used for liquid crystal image display or the like is correspondingly reduced, resulting in darkening of the image. . The brightness-increasing film is repeatedly reversed so that light having a polarization direction in which the polarizer can absorb is not incident on the polarizer but is temporarily reflected by the brightness enhancement, and further reversed by the reflection layer provided on the rear side thereof. Then, it is incident on the brightness enhancement 再次 again, so that the brightness enhancement film only causes the polarization direction of the light reflected and inverted between the two to be transmitted through the polarized light in the polarization direction of the polarizer and supplied to the polarizer, so that it can be Light such as a backlight is effectively used in the image display of the liquid crystal display device, thereby improving the brightness of the kneading surface. A diffusion plate may be provided between the high brightness s film and the reflective layer #. The light in the polarized state reflected by the brightness enhancement film is directed toward the reflection layer or the like, but the diffusing plate provided uniformly diffuses the passing light and eliminates the polarization state to become a non-polarized state. That is, the diffusing plate restores the polarized light. In the above, (4), the light in the (4) state is reflected toward the reflection layer or the like, and is reflected by the reflection layer or the like, and then again passed through the diffusion plate to be incident on the brightness enhancement film again. By providing a diffusing plate that restores the polarized light to the original natural light state between the brightness improving film and the reflective layer or the like, the brightness of the display surface can be maintained, and the brightness of the display screen can be reduced, thereby providing uniform and bright diffusion. The plate is appropriately increased by the repeated reflection of the primary incident light. == The diffusion function of the diffusion plate provides a bright display of the uniform sentence. 132035.doc -38- 200911536 As the above-mentioned thickness improving film, for example, a multilayer film such as a dielectric or a multilayered laminated body having different refractive index anisotropy can be used, and it is shown that a linear polarized light of a specific polarizing axis is transmitted. a film that reflects the characteristics of other light; such as the alignment m of the cholesteric liquid crystal polymer or the film supporting the alignment liquid crystal layer on the film substrate, exhibiting any kind of circular polarization of left-handed or right-handed rotation A suitable film such as a film having a characteristic of light transmission. Therefore, in the inner film of the type in which the linear polarization of the specific polarization axis is transmitted, the absorption light can be uniformly incident on the polarizing plate by the direct polarization axis, thereby suppressing the absorption loss caused by the polarizing plate. And the light is transmitted efficiently. On the other hand, in a brightness-enhancing film of a type such as a cholesteric liquid crystal layer that transmits circularly polarized light, circularly polarized light can be directly incident on a polarizer, but from the viewpoint of suppressing absorption loss, it is preferable to pass through a phase. The difference plate linearly polarizes the circular polarized light and then enters the polarizing plate. Further, circularly polarized light can be converted into linearly polarized light by using a quarter-wave plate as the phase difference plate. A phase difference plate which functions as a 1/4 wavelength plate in a wide wavelength range such as a visible light region can be obtained, for example, by the following method, and is used as a 1/4 wavelength plate with respect to a light-colored light having a wavelength of 550 nm 2 . The phase difference layer that functions is a method in which a phase difference layer having no other phase difference characteristic is overlapped, for example, as a phase difference layer of a half-wave plate. Therefore, the phase difference plate disposed between the polarizing plate and the redundancy improving film can be formed of a layer or a retardation layer of two or more layers. Furthermore, in terms of cholesterol φ], S &amp; . 咚 ^, the night layer and S, it is also possible to combine materials of different reflection wavelengths to form a heavy Niegu 1 B 1 „ 驭垔 and have 2 or more layers Configuration configuration, thereby obtaining 132035.doc -39- 200911536

A person who reflects a circular polarizer in a wide wavelength range such as a visible light region can obtain a transmissive circular polarized light in a wide wavelength range based on this. The X polarizing plate may be formed of a polarizing plate and two or more optical layers, as in the above-described polarizing partial release polarizing plate. Therefore, a reflective elliptically polarizing plate or a semi-transmissive elliptically polarizing plate in which the above-described reflective polarizing plate or semi-transmissive polarizing plate and retardation plate are combined may be used. The manufacturing of the above-mentioned optical crystal display device or the like laminated on the polarizing plate can also be formed by using the liquid layer in the order of independent lamination, but the film is laminated in advance to become an optical film. It is excellent in terms of other aspects, and therefore has a manufacturing process such as a liquid crystal display device. In the laminate, you can use i M a β to use an appropriate bonding mechanism such as the adhesive layer. When following the polarizing plate or other optical rafts,

The optical axis of the τ side temple can be used for the purpose; the appropriate configuration angle is adopted for knowing the difference characteristics of A. "Adhesive optical ah U of the present invention, i Youzi can be used for the formation of liquid crystal display devices, etc. Liquid crystal island - strong 屯 罝 罝 . . , , , , , , , , , , , , , , , , , , , , , , , , , , , , According to the previous method, that is, a liquid crystal display device, 诵蚩 "The upper core is made of a liquid crystal cell and a half plate or an optical film, and an illumination system to be added as needed. In the present invention, it is formed by a driving circuit or the like. In addition to the prior art or the optical film of the invention, there is no particular limitation on the formation of the method. For liquid crystal cells based on + , XT . j use for example ΤΝ (four) or coffee, _VA, lps

Any type of liquid crystal cell. The IPS can be formed by the invention to form a liquid a @ _ on the side of the day or night, or on both sides of the liquid crystal display with a low-level plate or optical film, or a backlight for use in the illumination system 132035. Doc •40- 200911536 5' &quot; Suitable liquid crystal display devices such as shooters. In this case, the polarizing plate or the optical pickup of the present invention may be disposed on one side or both sides of the liquid crystal cell. When the values are set on both sides, or the optical film, the same material T can be different materials. Further, when forming a liquid crystal display device, one or two or more layers such as a diffusion plate, an antiglare layer, a P-side reflection film, a protective plate, a tantalum array, a lens array sheet, and light can be disposed at an appropriate position. Suitable parts such as diffuser plate and backlight. f Next, an organic electroluminescence device (organic EL display device) will be described. In general, in an organic EL display device, a translucent electrode, an organic light-emitting layer, and a metal electrode are sequentially formed on a transparent substrate to form an illuminant (organic electroluminescence). Here, the organic light-emitting layer is a laminate of various organic films, and is known to have a laminate of a hole injection layer formed of a triphenylamine derivative or the like and a light-emitting layer formed of a fluorescent organic solid such as ruthenium. Alternatively, the S-light layer may be a laminate of an electron-injecting layer formed of a phthalocyanine derivative or the like, or a combination of the hole injection layer, the light-emitting layer, and the electron-injecting layer. The organic EL display device emits light by applying a voltage to the transparent galvanic electrode and the metal electrode to inject a hole and electrons into the organic light-emitting layer, by the holes and electrons. The energy generated by the combination is a fluorescent material that emits light when the excited fluorescent material returns to the ground state. The recombination mechanism in the middle is the same as that of the ordinary diode, and it can be inferred that the current and the luminous intensity show a strong nonlinearity accompanying the rectification with respect to the applied voltage. In the organic EL display device, in order to take out the electrode on the side of the 132035.doc -41 - 200911536 which is generated in the organic light-emitting layer, it is necessary to use a transparent electrode made of an indium tin oxide 4 transparent conductor as an anode. On the other hand, in order to facilitate the electron injection, it is very important to increase the luminous efficiency. A material having a small work function is used for the cathode, and a metal electrode such as Ag or Al-Li is usually used. • In the organic display device having such a configuration, the organic light-emitting layer is formed of an extremely thin film having a thickness of about 10 nm. Therefore, the organic light-emitting layer is also the same as the light-emitting electrode, so that the light is substantially completely transmitted. As a result, light that is incident from the surface of the transparent substrate and transmitted through the transparent electrode and the organic light-emitting layer after being not emitted, and then reflected by the metal electrode is again emitted toward the surface side of the transparent substrate. Therefore, when visual inspection is performed from the outside, organic pulling is performed. The display surface of the device is like a mirror surface. In the organic EL display device including the organic electroluminescence device, the organic electroluminescence device has a transparent electrode on the surface side of the organic light-emitting layer that emits light by applying electricity, and has a metal electrode on the back side of the organic light-emitting layer. A polarizing plate is disposed on the surface of the pole, and a phase difference plate is disposed between the transparent electrode and the polarizing plate. The phase difference plate and the polarizing plate have light that is incident from the outside and reflected by the metal electrode. Since the polarizing action acts, the mirror surface of the metal electrode cannot be visually observed from the outside. In particular, the phase difference plate is formed by the Μ wavelength plate, and the polarization direction of the polarizing plate and the phase difference plate is formed. When the angle is adjusted to τ/4, the mirror surface of the metal electrode can be completely shielded. That is, the external light incident on the organic display device transmits only the linear polarization component due to the polarizing plate. The linear polarization usually passes through the phase difference plate. Turn 132035.doc •42· 200911536 into elliptically polarized light', especially 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. The circular polarized light is transmitted through the transparent substrate, the transparent electrode, and the organic film, and is reflected by the metal electrode, and then transmitted through the organic film, the transparent electrode, and the transparent substrate again, and is again converted into a straight line by the phase difference plate. Further, since the linearly polarized light is orthogonal to the polarizing direction of the polarizing plate, it cannot be transmitted through the polarizing plate. As a result, the mirror surface of the metal electrode can be completely shielded. EXAMPLES Hereinafter, the present invention will be specifically described based on examples. However, the present invention is not limited to the above examples. Further, parts and % in each example are based on the weight. Production Example 1 &lt;Preparation of Acrylic Adhesive&gt; In a 4-necked flask, 96.5 parts of butyl acrylate, 3 parts of acrylic acid, 2 parts of 2-hydroxyethyl acrylate, 5 parts, 2, 2, - even mice, 0.15 parts of acetonide, and 1 part by weight of ethyl acetate were charged. After the 氦^ substitution, the mixture was stirred under a nitrogen gas flow and reacted at 60 ° C for 8 hours to obtain an acrylic polymer solution having a weight average molecular weight of 1.65 million. To the solid component i of the above-mentioned acrylic polymer solution, 0.5 parts of an isocyanate-based crosslinking agent (manufactured by NIPPON POLYURETHANE Co., Ltd., CORONATE L) was prepared to prepare an adhesive coating liquid (solid content: 12%). 2 132035.doc -43· 200911536 &lt;Preparation of Acrylic Adhesive&gt; Into a four-necked flask equipped with a nitrogen introduction tube and a cooling tube, 99.5 parts of butyl acrylate and 0.5 parts of 2-hydroxybutyl acrylate were added. 2,-azobisisobutyronitrile, 15 parts, and ethyl acetate, 1 part by weight, fully substituted with i, and then reacted at 60 ° C for 8 hours while stirring under a nitrogen gas flow to obtain a weight average. An acrylic polymer solution having a molecular weight of 1.65 million. An adhesive coating liquid was prepared by disposing 0.2 part of an isocyanate-based crosslinking agent (manufactured by NIPP® N POLYURETHANE, COR〇NATEL) as a crosslinking agent as a cross-linking agent in an amount of 1 part by weight of the above-mentioned acrylic polymer solution. (solid content: 11.50/〇) 〇Production Example 3 &lt;Preparation of acrylic adhesive&gt;

Into a four-necked flask equipped with a nitrogen introduction tube and a cooling tube, 90 parts of butyl acrylate, 4 parts of acrylic acid, 5 parts of propylene porphyrin, 1 part of 4-hydroxyethyl acrylate, and 2,2'-azo two were placed. 15 parts of isobutyronitrile and an aliquot of ethyl acetate, and after sufficiently replacing with nitrogen, the mixture was stirred at 6 ° C for 8 hours while stirring under a nitrogen gas flow to obtain an acrylic acid having a weight average molecular weight of 1.65 million. Polymer solution. An adhesive coating liquid (solid content of 11.5%) was prepared by blending 0.3 parts of an isocyanate-based crosslinking agent (manufactured by NIPP0N POLYURETHANE, c〇RONATEL) with respect to the solid component of the acrylic polymer solution as a crosslinking agent. ). <Polarizing Plate> A polyvinyl alcohol film having a thickness of 80 μm was extended to 5 times in an aqueous iodine solution, and then dried to obtain a polarizer. On both sides of the polarizer, a polarizing plate was obtained by bonding a transparent protective film (triethylene cellulose film, thickness: 8 〇 Mm) with polyethylene 132035.doc -44-200911536 alcohol-based adhesive. Example 1 A release film of a polyester film (release sheet, manufactured by Mitsubishi Chemical Co., Ltd., trade name Diaf0il MRF #38, thickness: 38 μηι) subjected to release treatment (surface roughness: 21 nm) On the other hand, the manufacturing example was applied by a die coater to dry the thickness of 25 μηΐ! After the obtained adhesive coating solution, at 7〇

In its oven, the first step was carried out by blowing the air at a speed of 14 meters per second. Then, the second drying step was carried out by blowing a temperature of 155 t and a wind speed of 15 m/s for 2 minutes, and then an adhesive layer was formed to obtain an adhesive sheet for an optical film. Examples 2 to 7, Comparative Examples 1 to 3 Except that the types of the adhesive coating liquid, the conditions of the first drying step, and the conditions of the second drying step in Example 1 were changed as shown in Table 1, In the same manner as in Example 1, an adhesive sheet for an optical film was obtained. The adhesive sheet for optical films obtained above was evaluated as follows. The results are shown in Table 1. &lt;Surface roughness (Ra): surface side&gt; The adhesive layer of the obtained adhesive material for an optical film was bonded to another release sheet (a polyester film of a target-mold release treatment, Mitsubishi Chemical Polyester Co., Ltd.) The product name is Diafon MRF #38, and the thickness is 38 _. After that, the original release sheet is peeled off and attached to the broken glass (made by the company, MICROSIDE GLASS) as a sample release mold. The way the sheet is above

. The sample was placed in a subsequent manner, and the surface roughness was measured using WYKO 132035.doc -45·200911536 ΝΤ3300 (non-contact three-dimensional roughness measuring device, manufactured by VEECO, Japan). For the measurement, observation was carried out in the range of 20 mm x 20 mm. The surface roughness was calculated by taking 3 places at intervals of 5 mm in the direction perpendicular to the application direction of the adhesive layer. Table 1 shows the average of the surface roughness and the measured values of the three places (in brackets). Further, the surface roughness (Ra) is a value measured in accordance with JIS B0601. &lt;Surface roughness (Ra): release sheet side&gt; Ra of the adhesive layer on the release sheet side is the Ra of the release treatment surface of the release sheet. In this way, in the Ra of the adhesive layer on the release sheet side, the release treatment of the release sheet was measured using a fine shape measuring device (three-dimensional surface shape measuring instrument) ET4 (manufactured by Kosei Research Institute). Surface roughness of the surface. For the measurement, it was observed in the range of 20 mm × 20 mm, and it was measured in the direction perpendicular to the application direction of the adhesive layer. Further, the surface roughness (Ra) is a value measured in accordance with JIS B0601. &lt;visibility&gt;. The obtained optical film was transferred onto a polarizing plate by an adhesive layer of an adhesive sheet to form an adhesive polarizing plate. After peeling off the release sheet from the adhesive polarizer, it is bonded to SHARP (sales &gt; g = j -, knife; the surface is used to make the panel, according to the following basis, from the front and the slope f Visual observation in 2 directions. ◎: No problem with visibility. 〇: Some unevenness is confirmed but it is not a problem. X: There is a problem with visibility. 132035.doc -46- 200911536 [Ιΐ Visibility tilt 45° 〇〇◎ ◎ ◎ ◎ ◎ XXX Front 〇 ◎ ◎ ◎ ◎ ◎ ◎ XXX /^ν I Mold release side Os (N m (N adhesion layer surface roughness (Ra surface side 145.3 (145, 147, 144) 129.0 (129 , 130, 128) j 92.7 (9 Bu 93, 94) 1 50.3 (48, 51, 52) 30.3 (29.31 ' 31) 52.0 (53 ' 51 ' 52) 50.7 (49, 53, 50) 189.7 (190, 188 191) 183.3 (182, 183, 185) 1 185.3 (185, 186, 185) 2nd drying step wind speed (meters per second) V&quot;) 〇〇vr&gt; VI temperature CC) vn ^Τ) in in in in In 1〇1st drying step Wind speed (meters/second) Inch CN ο in (Ν Temperature CC) 〇Ο s Ο Adhesive type manufacturing example 1 Manufacturing example 1 Manufacturing example 1 Manufacturing Example 1 Manufacturing Example 1 Manufacturing Example 2 Manufacturing Example 3 Manufacturing Example 1 Manufacturing Example 2 Manufacturing Example 3 Example 1 Example 2 Example 3 Example 4 Example 5 Example 6 Example 7 Comparison Example 1 Comparative Example 2 Comparative Example 3 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an adhesive sheet for an optical film of the present invention. Fig. 2 is a cross-sectional view showing an example of an adhesive optical film of the present invention. 1 Release sheet 2 Adhesive layer 2a Surface roughness (Ra) is 2~15 Ο nm Adhesive layer surface 3 Optical 臈132035.doc -48-

Claims (1)

200911536 X. Application for Patent Fan Park·· An optical adhesive with eight characteristics, which is characterized in that it has a layer of adhesive on the release sheet, and the adhesive sword on the release sheet is a 4-layer surface. The surface roughness (the ruler is 2 to 15 〇 1 Λ W» 〇 2. It is characterized by the method of the method of the invention, and the manufacturing method of the optical film for the optical film is used to manufacture the optical film of claim 1 Adhesive sheeting step: applying an adhesive coating liquid on the release sheet; and applying a first drying step of applying a temperature of 30 to 8 Gt and an air velocity of 5 to 15 m/sec to the above-mentioned adhesive coating liquid And a temperature of 0 to 16 (rc, wind speed of 25 meters / heart of the second drying step, thereby forming an adhesive layer. 3. Adhesive optical film, characterized in that it is attached to the release sheet The surface of the adhesive layer of the adhesive film for the optical film having the adhesive layer is bonded to the surface of the adhesive layer, and the adhesive sheet for the optical film is the adhesive sheet for the optical film of claim 1, for surface roughness (Ra An optical film is bonded to the surface of the adhesive layer of 2 to 50 nm. 4. An image display device It uses at least one adhesive optical film that peels off the release sheet from the adhesive optical film of claim 3. 132035.doc 200911536 VII. Designation of representative drawings: (1) The representative representative of the case is: (1). (2) Brief description of the symbol of the representative figure: 1 Release sheet 2 Adhesive layer 2a, 2b Adhesive layer surface A Adhesive sheet for optical film 8. If there is a chemical formula in this case ^ (None) 1 Please reveal the most Chemical formula that shows the characteristics of the invention: 132035.doc