TW200941049A - Polarizing plate and image display device - Google Patents

Abstract

A light-diffusing layered resin film which comprises a resin layer (A) comprising a transparent resin containing a light diffuser dispersed therein having a weight-average particle diameter of 1-20 [mu]m and a transparent resin layer (B) superposed on each side of the resin layer (A), and which has a thickness of 30-500 [mu]m. The resin layer (A) has a thickness which is 5-50%, excluding 50%, of the thickness of the light-diffusing layered resin film. The light-diffusing layered resin film is produced by obtaining a layered film by the coextrusion of a resin composition for forming the resin layer (A) and a resin composition for forming the transparent resin layers (B) and forming the layered film while keeping at least one side of the layered film in contact with an elastic roll. Also provided are: a process for producing the light-diffusing layered resin film; and an antiglare film, antiglare polarizer, and image display each employing the light-diffusing resin film.

Description

200941049 IX. Description of the Invention: [Technical Field] The present invention relates to a polarizing plate in which a polarizing element and at least a ruthenium film are laminated. Further, the present invention relates to an image display apparatus using the polarizing plate. Further, the present invention relates to a method of manufacturing the image display device. [Prior Art] In the liquid crystal display device, in terms of the image forming method, it is indispensable to provide a polarizing plate on both sides of the glass substrate on which the surface of the liquid crystal panel is formed. The polarizing plate is usually used in the case where a polarizing element protective film such as cellulose triacetate is used in combination on both surfaces of a polarizing element including a polyvinyl alcohol-based bismuth and a dichroic material such as iodine. However, cellulose diacetate has the following disadvantages: its heat and humidity resistance is not sufficient, and when a cellulose triacetate film is used as a polarizing plate of a polarizing element protective film under high temperature or high humidity, a polarizing or color-equal polarizing plate is used. The performance is degraded. In order to solve the above problems, a material in which a cyclic olefin resin is used instead of cellulose triacetate as a protective film for a polarizing element has been proposed. The ring-shaped flue-cured resin has low moisture permeability, so that the polarizing plate can have high durability. However, the polyvinyl alcohol-based adhesive is excellent in adhesion to the cellulose triacetate film and the polyethylene (10) polarizing element, but lacks adhesion to the cyclic rare hydrocarbon resin film and the polyethylene polarizing element. /' Therefore, as a method of forming a cyclic olefin-based resin film and a polyethylene-based polarizing element, a method of passing the acrylic acid-based adhesive layer is proposed. Doc 200941049 (refer to Patent Document I). However, this method requires heating and pressure bonding, and the heating time is also long. Therefore, there is a problem that the polarization of the polyvinyl alcohol-based polarizing element is caused to cause a significant decrease in the degree of polarization of the polarizing plate. Further, since heating is required for a long period of time, there is also a problem that the production efficiency is low and the film is deformed. Further, as a protective film for a polarizing element, a polyester film has been proposed (see Patent Documents 2 and 3). Further, in order to solve the problem of adhesion or film strength, a method of coextruding a polyester with a styrene-based or olefin-based monomer, a nylon-based resin or an acrylic resin has been disclosed (see Patent Documents 4 to 7). Patent Document 1: Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. Japanese Patent Laid-Open Publication No. 2006-220731 (Patent Document No. 2006-220732) Patent Document 7: JP-A-2006-276574 SUMMARY OF INVENTION Technical Problem However, the problem to be solved by the invention is The adhesiveness of the polyester-ray polarizing element or other resin layer is not sufficient. In the case of co-extrusion as disclosed in Patent Documents 4 to 7, etc., it is also likely that peeling occurs at the interface between the polyester layer and the other resin layer. And other issues. Means for Solving the Problems In view of the above, the present invention provides a polarizing plate having a polyester layer which is excellent in adhesion and which is less likely to cause film peeling. 136640. Doc 200941049 The inventors of the present application have diligently studied the results, and found that the above problems can be solved by a specific configuration, thereby achieving the present invention. That is, the present invention relates to a polarizing plate which is formed on at least a square main surface: at least a sheet of a polyester film which is easily adhered to a layer and a polarizing element, and an easy adhesion layer of the polyester film is formed. The laminate is laminated via an adhesive in a manner opposite to the polarizing element. Further, in the polarizing plate of the present invention, the adhesive layer layer is preferably formed of the following adhesive: a polyvinyl alcohol-based resin, a crosslinking agent, and a metal having an average particle diameter of 1 to 100 nm. The compound solution is a colloidal resin solution, and the metal compound gum system is formulated in a ratio of 200 parts by weight or less of the polyvinyl alcohol-based resin to 200 parts by weight or less. Further, in the polarizing plate of the present invention, the above-mentioned easy-adhesion layer H preferably contains a polyvinyl alcohol compound or a polyurethane compound. In one embodiment of the polarizing plate, a polyester film having an adhesive layer formed on at least one of the main surfaces is laminated on the main surface of the polarizing element Ε via the adhesive layer G. A polarizing plate in which no film is laminated on the other main surface of the above-mentioned polarized light 70 ρ. Further, the present invention relates to an image display device having the above polarizing plate. Further, the present invention relates to a method of manufacturing the above image display device. As an embodiment of the method of manufacturing an image display device of the present invention, preferably, the method includes a reel material preparation step of preparing a long sheet of the polarizing plate as a reel material, and a cutting step. Pulling the sheet product from the reel material 'cut the polarizing plate into a predetermined ruler 136640 using a cutting mechanism. Doc 200941049 inch; and bonding step', after the cutting step, the polarizing plate is bonded to the optical display unit via the adhesive layer. [Embodiment] The present invention relates to a polarizing plate in which at least i sheets of polyester and a polarizing element p which are formed on at least a main surface and which are easily followed by a reed, are laminated via an adhesive layer. Hereinafter, preferred embodiments of the polyester film e, the easy-adhesion layer > H, the polarizing element p, and the adhesive layer g will be described in order. [Polyester film] 聚 Poly® film E is used as a protective film for polarizing elements. The material for forming the polyester film is not particularly limited, and examples thereof include terephthalic acid, isophthalic acid, phthalic acid, 2,5-naphthalene dicarboxylic acid, 2,6-cai dicarboxylic acid, and hydrazine. Cai dimethane 1,5 naphthalene monodecanoic acid, diphenylcarboxylic acid, diphenoxyethane dicarboxylic acid, diphenylsulfone decanoic acid, hydrazine dicarboxylic acid, I% cyclopentane dicarboxylic acid, H cyclohexane Dicarboxylic acid, hydrazine-cyclohexanedicarboxylic acid, hexahydroterephthalic acid, hexahydroisophthalic acid, malonic acid, dimercaptomalonic acid, succinic acid, 3,3-difluorene ethyl butyl Diacid, glutaric acid, 2,2-dimercaptoglutaric acid, adipic acid, 2, mercaptohexanoic acid, dimethyl adipate, pimelic acid, sebacic acid, dimer acid, hydrazine Dicarboxylic acids such as diacid, suberic acid and dodecanedicarboxylic acid, and ethylene glycol, propane propylene, hexanol, neopentyl glycol, 12·cyclohexane dimethanol, hydrazine, 4 _ cyclohexane a methanol, decanediol, i, 3 • propylene glycol, butyl diacetate, quinone pentanediol, 1,6-hexanol, 22 bis (4-hydroxyphenyl) propane, bis (4-hydroxyphenyl) a homopolymer obtained by polycondensation of one of each of the monohydric alcohols, or one or more carboxylic acids Two or more kinds of diol obtained by polycondensation of the copolymer, or two or more kinds of the dicarboxylic acid obtained by polycondensation of 136,640 and one or more types of diols. Doc 200941049 A copolymer, and any one of the blended resins obtained by blending two or more of these homopolymers or copolymers. Among them, it is preferred to use a polyethylene terephthalate resin. The polyester film can be obtained, for example, by melt-extruding the above-mentioned polyester resin into a film form, and forming a film by cooling and solidifying using a washing drum. As the (4) film E in the polarizing plate of the present invention, any of the unstretched film and the stretched film may be used. For example, in the case where a small birefringence is required, an unstretched film can be suitably used. Further, when birefringence is used for the optical compensation of a liquid crystal display device or the like, a stretched film can be suitably used. Further, the stretched film, in particular, the double (four) (four) may be suitably used in terms of strength. When the polyacetal film E is a stretched film, the stretching method is not particularly limited, and the longitudinal uniaxial stretching method, the transverse uniaxial stretching method, the vertical and horizontal sequential double stretching method, the vertical and horizontal (four) biaxial stretching method, and the like are not limited. . As the extending mechanism, any suitable stretching machine such as a roll stretching machine, a draping machine, a zooming ceremony, or a linear motor type double-axis stretching machine can be used. The thickness of the above-mentioned polyester film R is preferably 5 to 5 bark, and more preferably 5 to 2. Good is 1〇~15〇叩. If the thickness is less than the above range, there is a problem that the film becomes easy to be broken, the strength is caused when the temple is applied to the polarizing plate, and the operability of the polarizing element is poor, and the durability of the polarizing element is poor, and the above range is present. The lack of flexibility of the film makes it possible that the film itself becomes difficult to manufacture. In the polarizing plate of the present invention, the above-mentioned aggregation is easy to laminate. As 1 and the 表面 on the main surface is the splicer layer, it can be cited as the following stipulation 136640. Doc 200941049 The substance is formed by a hydrophilic cellulose derivative, a polyvinyl alcohol compound, a hydrophilic polyester compound, a polyethylene compound, a (meth)acrylic compound, an epoxy resin, a polyamine phthalate compound, Natural polymer compounds, etc. Examples of the hydrophilic cellulose derivative include methyl cellulose, carboxymethyl cellulose, and hydroxy cellulose. • Examples of the polyvinyl alcohol-based compound include polyvinyl alcohol, vinyl acetate, ruthenium-vinyl alcohol copolymer, polyvinyl acetate, polyvinyl acetal, polyethylene furfural, and polyethylenebenzylidene. In particular, from the viewpoint of adhesion to the polyester film, it is preferred to formulate a crosslinking agent. A preferred crosslinking agent will be described later. The hydrophilic polyester compound may, for example, be a sulfonated polyethylene terephthalate or the like. Examples of the polyethylene compound include poly-N-vinylpyrrolidone, polypropylene decylamine, polyvinylimidazole, and polyvinylpyrazole. ❹ Examples of the (meth)acrylic compound include acrylic acid, carboxyalkyl acrylate, alkyl acrylate, hydroxyalkyl acrylate, hydroxyalkyl acrylate, methacrylic acid, carboxyalkyl methacrylate, Methyl acrylate sulphuric acid vinegar, mercapto acrylic acid via carbaryl, methyl propyl acid via alkyl acrylate. Examples of the epoxy resin include a bisphenol epoxy resin, a novolak epoxy resin, an aromatic epoxy resin of an epoxidized polyethylene benzene material, a hydrogenated product of an aromatic epoxy resin, and a cyclohexane ring. An alicyclic epoxy resin such as an oxy resin or a cyclohexyl oxime ether epoxy resin, polyepoxy-squeezing diglycerin 136640. Doc -11 - 200941049 Polyester polyols shrinking water (four), (four) and more (four) glycidol shouting and other aliphatic epoxy resins. Examples of the polyurethane vinegar compound include polyhydric alcohols such as acrylic acid polyol, polyglycol polyol, and poly-bond polyol, and tetramethylene diisocyanate, isophora-isocyanac vinegar. A reaction product such as a polyisocyanate. Among them, in view of the adhesion to the polyester film, it is preferred to use a poly-glycol. Amine, as a natural polymer compound, may be exemplified by gelatin, casein, or arsenic. From the viewpoint of adhesion, a compound of polybendane-based bamboo or polyamine sulphate may be suitably used. Further, the above-mentioned easy-adhesive layer may also contain a crosslinking agent, especially when the easy-adhesion layer is mainly a polyvinyl alcohol-based compound or a polyethylene-based compound, and the adhesion (adhesion) of the fish polyester film is generally higher. In the case of the latter, it is preferred to: Η preferably contain a crosslinking agent. Examples of the crosslinking include: dilute acid, styrene, epoxy, phenyl, phenoxy Phenoxy group: a cross-linking agent such as a melamine-based or a urethane-based vinegar-based hydrazine. In the viewpoint of enhancing the adhesion between the vinegar and the (4) layer, it is suitable to use the ten-seat-based, two-breasted An amine group, a mercapto group or an epoxy group crosslinker. It is preferred to use a layer of a solution, a dispersion or an emulsion and apply it to the polylai. (4) _, (4) _, in terms of preventing environmental pollution and obtaining explosion-proof properties, it is preferably used as an aqueous coating liquid. Moreover, from the viewpoint of promoting the water-based coating, or the polyester film, Considering the bismuth of the coating solution, it is also possible to adjust the interface activity of 136640. Doc 200941049 agent. The appropriate amount of the surfactant to be added to the coating liquid varies depending on the kind of the surfactant, and the amount can be appropriately adjusted so that the layer and the polarizing element have sufficient adhesion. For example, an interface active agent may be contained in an amount of about 100 parts by weight based on the solid content of the aqueous coating liquid. • Surfactants can be used in anionic, cationic or nonionic forms.  Any-type 'such as polyoxyethylene fatty acid vinegar, sorbitol liver fatty acid ❹Sl, fatty acid glycerides, fatty acid metal hi, alkyl sulphate, sulphate base, succinyl succinate, gasification four Grade money salt, alkylamine hydrochloric acid, betaine type surfactant, and the like. An antistatic agent, a colorant, an ultraviolet absorber, a crosslinking agent, a pigment, an organic filler, and an inorganic filler may be further added to the coating liquid. The solid content concentration is usually 2% by weight or less, preferably 1 to 10% by weight. If the solid content is concentrated, the coating of the film may be changed. If the solid content is too large, the stability, the uniformity of the coating layer, and the appearance may deteriorate. The coating of the film solution on the polyacetal film can be carried out at any stage. When the polyester film is an unstretched film, it can be used as a cloth. In addition, in the case of applying the film to the film at any stage after & / film formation, after the extension and extension, the pot will prove that you are in the extension period of the J J ^ π ^ Cloth can be. When applying the "double-axis extension" during the extension, the film is longitudinally oriented (4), for example, by using the vertical and horizontal grading, and then before the lateral extension... using a tenter extension, zooming Ceremony or linear motor type double-axis extension machine, etc., enters the 彳m line to enter and extend the material, and does not need to make 136640. Doc •13- 200941049 Since the film is in contact with the roll, it is possible to carry out the stretching and the drying of the coating liquid in one step by applying the coating liquid immediately before the stretching, which is a preferable constitution. When the coating liquid is applied to the polyester film, the surface of the film may be subjected to corona treatment, plasma treatment or the like in advance from the viewpoint of improving the coating property. The coating amount of the coating liquid is preferably adjusted so that the thickness of the easy-adhesion layer is about 〇·_~H) _, preferably 0,001~5 _, especially O. OOhi μΐη or so. If the thickness of the coating layer is too small, the adhesion of the ruthenium polarizing element may be insufficient. If the thickness is too large, a knot may occur or the haze may increase. As the coating method, any known coating method can be applied. For example, a roll coating method, a gravure printing method, a light brushing method, a spray coating method, an air knife coating method, an impregnation method, and a curtain coating method can be provided. These may be used alone or in combination. The coating liquid applied to the polyester film is dried by heating or the like, and formed on the film as an easy-adhesion layer. [Polarizing element] A polarizing element is a film that converts natural light or polarized light into an arbitrary polarizing ❹. As the polarizing element used in the present invention, any suitable polarizing element can be employed, and it is preferred to convert natural light or polarized light into linear polarized light.  In the polarizing plate used in the present invention, as the polarizing element Ρ, any suitable one may be employed depending on the purpose. For example, iodine or a dichroic dye may be adsorbed on a hydrophilic polymer film such as a polyvinyl alcohol film, a partially formalized polyvinyl alcohol oxime, or an ethylene-vinyl acetate vine copolymer partial saponified film. Doc •14- 200941049 One-color substance, which is obtained by uniaxial extension; and the poly-dense alignment of polyvinyl alcohol dehydration treatment or poly-ethylene dehydrochlorination treatment, etc., can also be used: US patent A bismuth-type polarizing element which is obtained by aligning a liquid crystal composition containing a dichroic substance and a liquid crystal compound in a fixed direction, as disclosed in No. 5,523,863, and the like, and the disclosure of U.S. Patent No. 6, ,49, 428, et al. The lyotropic liquid crystal is aligned to the obtained E-type polarizing element or the like in a fixed direction.

In the polarizing element, a polarizing element formed of a polyvinyl alcohol-based film containing iodine is preferably used from the viewpoint of having a high degree of polarization and the adhesion to the polyester film having the above-mentioned easy-to-adhere layer. As a material of the polyvinyl alcohol-based film applied to the polarizing element, polyvinyl alcohol or a derivative thereof is used. Examples of the polyvinyl alcohol derivative include polyethylene formaldehyde, polyvinyl acid, and the like. In addition, the raw materials of the polyvinyl alcohol, such as ethylene, propylene, and acrylic acid, f-based acid, and T-acid are not sufficient. It is obtained by modifying an acid or its base vinegar, and acrylamide. Usually, the polymerization degree of the polyethylene glycol is about 1000 to 10,000, and the degree of saponification is about 8 〇 to 1 〇〇 mol%. The poly-ethylene strand may also contain an additive for plasticizing. Examples of the plasticizer include a polyhydric alcohol and a condensate thereof, and examples thereof include glycerin, diglycerin, triglycerin, ethylene glycol, propylene glycol, and ethylene glycol. There is no special system for the amount of plasticizer used, and it is preferred to use 20% by weight or less of the poly(tetra) film. The polyvinyl alcohol-based hydrazine (unextended # a, + τ Μ糸 is subjected to at least uniaxial stretching treatment and iodine dyeing treatment by a usual method. Further, it may be subjected to boric acid treatment or iodide ion treatment. Further, it will be carried out. The above-mentioned treatment of the polyvinyl alcohol-based film (stretching film) J 36640.doc 15 200941049 is dried by a conventional method to form a polarizing element. The uniaxial stretching process has no (4) run-in method and dry-extension method. Any method may be used as a dry type:: = stretching method, for example, a method of extending between rolls, a method of extending a heating roll, a method of stretching (4), and the like. When the stretching method can be carried out in multiple stages, the unstretched film is usually heated. When using 30~150 force, the extension of the film is about ^^μμ. The extension ratio of the extension film can be set according to the purpose. The ideal extension ratio (total extension ratio) is about 2~8 times. It is 3 to 6.5 times, more preferably 3.5 to 6 times. The thickness of the stretched film is suitably about 5 to 4 〇 μιη. The moth dyeing treatment is performed by impregnating the polyethylene film with ruthenium and broken Unloading in a solution The secret liquid is usually a moth (4) which contains hydrazine in the aqueous solution and as a dissolution aid. It is preferred that the concentration of (4) is about (10)^% by weight, preferably 0_02 to 0.5% by weight, and the concentration of potassium in the dish is 〇·〇ι When the iodine dyeing treatment is carried out, the temperature of the iodine solution is usually about 20 to 50 t: preferably about 25 to 40 t. The immersion is preferably carried out under conditions of 0.02 to 8% by weight. The time is usually about 1 〇 to 3 〇〇 seconds, preferably in the range of 20 to 240 seconds. When iodine dyeing is performed, the concentration of the iodine solution and the immersion of the polyvinyl alcohol film in the iodine solution can be adjusted. The iodine content and the potassium content in the polyvinyl alcohol film are adjusted to the above range under the conditions of temperature, impregnation time, etc. The iodine dyeing treatment can be performed before the uniaxial stretching treatment, the uniaxial stretching treatment, and the uniaxial stretching treatment. The boric acid treatment can be carried out by immersing the polyvinyl alcohol hydrazine in an aqueous solution of boric acid at 136640.doc -16-200941049. The concentration of the (4) in the aqueous acid solution is about 2 to 15% by weight. Good is 3~1G% by weight.峨(4) contains the unloading ion: iodide ion. The concentration of potassium iodide in the aqueous solution of boric acid is preferably 〇5~1〇/〇~ is preferably 〜8wt%, and the aqueous solution containing moth can be obtained. A polarizing element having a small amount of coloration, that is, a so-called neutral gray polarizing element having a substantially constant absorbance throughout a substantially full-band range of visible light. For example, a potassium ion containing potassium (potassium) or the like is used for the block ion treatment. The concentration of potassium telluride is preferably 〇·5~1 ()% by weight, more preferably ^% by weight. When the ion-impregnation treatment is carried out, the temperature of the aqueous solution is about 15 6GC'. It is 25 to 4 generations. The dipping time is usually about 1 120 and around, preferably 3 to leap seconds. The stage of iodide treatment is not particularly limited as long as it is before the drying step. It can also be carried out after the water washing described later. In addition, the polarized 7L piece may also contain zinc. When the polarizing element contains a word, it is preferable to suppress the deterioration of the hue under the heating ring. The content of the word in the polarizing element is preferably adjusted so as to contain 0.002 to 2% by weight of zinc element in the polarizing element. More preferably, it is adjusted to the extent that the polarizing element contains 0.01::% by weight of the element. When the zinc content in the polarizing element is the above-mentioned entanglement, the durability improving effect is better and the hue deterioration is better. Zinc 3 / used in the treatment of zinc salt solution. As the salt, it is suitable to use a chemically-chlorinated compound of an aqueous solution such as zinc sulfate or acetic acid. Among these, the sulfuric acid can improve the retention ratio of zinc in the polarizing element, which is preferable. 5A > Upper 7' and zinc impregnation can also be used with a variety of zinc mismatches 136640.doc • 17- 200941049. The concentration of zinc ions in the aqueous zinc salt solution is about 0.1 to 10% by weight, preferably 0.3 to 7% by weight. Further, when the zinc salt solution contains an aqueous solution containing potassium ions and iodide ions by potassium iodide or the like, it is preferable to easily impregnate the ion. The concentration of potassium iodide in the zinc salt solution is preferably from about 0.5 to 10% by weight, more preferably from 1 to 8% by weight. When the zinc impregnation treatment is carried out, the temperature of the zinc salt solution is usually about 15 to 85 ° C, preferably 25 to 70 ° C. The immersion time is usually about 1 to 120 seconds, preferably 3 to 90 seconds. When the impregnation treatment is carried out, the zinc content in the polyvinyl alcohol-based film can be adjusted by adjusting the concentration of the zinc salt solution, the impregnation temperature of the polyvinyl alcohol-based film in the zinc salt solution, and the time of the impregnation. The stage of the zinc impregnation treatment is not particularly limited and may be carried out before the iodine dyeing treatment, or after the boronic acid aqueous solution impregnation treatment after the iodine dyeing treatment, the boric acid treatment, and the boric acid treatment. Further, the zinc salt may be coexisted in the iodine dyeing solution, and the immersion treatment may be carried out simultaneously with the iodine dyeing treatment. Preferably, the impregnation treatment is carried out together with the boric acid treatment. Alternatively, the uniaxial stretching treatment may be carried out together with the zinc impregnation treatment. Further, the zinc impregnation treatment may be carried out plural times. The polyvinyl alcohol-based film (stretched film) subjected to the above treatment can be supplied to the water washing step and the drying step by a usual method. The water washing step is usually carried out by impregnating a polyvinyl alcohol-based film in pure water. The water washing temperature is usually 5 to 50 ° C, preferably 10 to 45 ° C, more preferably 15 to 40 ° C. The immersion time is usually from 1 Torr to 300 seconds, preferably from about 20 to 240 seconds. The drying step may be carried out by any suitable drying method, such as natural drying, 136640.doc • 18-200941049, wind drying force, cr drying, and the like. For example, in the case of heat drying, the drying temperature is typically 20 to 80 T: preferably 25 to 70 C'. The drying time is typically about 〇1 to 1 minute. Further, the moisture content of the polarizing element after drying is preferably from 1 to 3 % by weight, more preferably from 12 to 28% by weight, still more preferably from 16 to 25% by weight. When the moisture content is too large, there is a tendency to dry the calendered sheet which is formed by laminating the polarizing element, the optical element, and the like, to the tenth film through the adhesive layer. , 胄 biased "the drying of the components, the degree of polarization decreased. In particular, the orthogonal transmittance in the short-wavelength region below 500 nm increases, that is, the light of the neon wavelength leaks, so there is a tendency that the black display will be colored blue. On the other hand, if the moisture content of the polarizing element is too small, there are cases where local unevenness defects (cracking defects) are likely to occur. As the thickness of the polarizing element P used in the polarizing plate of the present invention, any appropriate thickness can be employed. The thickness of the polarizing element is typically 5 to 80 μm, preferably 10 to 50 μm, more preferably 2 to 4 μ. When the thickness of the polarizing element 为 is in the above range, the optical characteristics and mechanical strength are excellent. [Adhesive layer] The polyester film Ε and the polarizing element 形成 having the easy-to-layer layer formed on at least one of the main surfaces are formed so that the easy-adhesion layer forming surface of the polyester film faces the polarizing element via the adhesive Layer G is laminated. At this time, it is desirable to laminate the two layers without an air gap using an adhesive layer. The subsequent agent layer G is formed of an adhesive. The type of the adhesive is not particularly limited, and various adhesives can be used. In particular, in the present invention, in the layer 136640.doc -19-200941049 in the layer G of the polarizing element Ρ and the polyester film ,, it is preferred to use a polyvinyl alcohol-based resin and a crosslinking agent as an adhesive. And a resin solution obtained by colloidal metal compound having an average particle diameter of 丨~丨00 nm. The polarizing element and the polarizing element protective film are usually dried after passing through the adhesive layer, but at this time, there is a tendency that unevenness (cracking) is likely to occur. In particular, when a polyester film is used as the polarizing element protective film for the polarizing element formed of the polyvinyl alcohol film, a cellulose resin film such as cellulose triacetate which is generally used as a protective film for a polarizing element is used as In the case of the polarizing element protective film, the generation of cracks is likely to become remarkable. Therefore, in the polarizing plate of the present invention, it is preferable to laminate the polyester film E and the polarizing element p by using an adhesive of the above composition. The polyvinyl alcohol-based resin used in the adhesive may, for example, be a polyvinyl alcohol resin or a polyvinyl alcohol resin having an ethyl acetonitrile group. A polyvinyl alcohol-based adhesive having a vinyl alcohol group having a high reactivity is preferable because it can improve the long-term durability of the polarizing plate. Examples of the polyvinyl alcohol-based resin include polyvinyl alcohol obtained by saponifying polyvinyl acetate; a derivative thereof; and a saponified product of a copolymer of a monomer copolymerizable with vinyl acetate; A modified polyvinyl alcohol obtained by hydroformylation, amine oxime acid esterification, etherification, grafting, phosphation, or the like. Examples of the monomer include unsaturated carboxylic acids such as maleic acid (anhydride), fumaric acid, butyric acid, methylene succinic acid, and (decyl)acrylic acid, and vinegars thereof. - 'α-olefin of ethylene, propylene, etc.; (mercapto)allylsulfonic acid (nano), sodium (succinic acid monoalkyl ester) sulfonate, alkyl maleate mono-acid Na, Ν-methacrylamide, acrylamide alkyl sulfonate alkali metal salt, Ν-ethylene "• pyrrolidone, Ν_vinyl pyrrolidone derivative and the like. The above-mentioned poly 136640.doc -20- 200941049 The vinyl alcohol-based resin may be used alone or in combination of two or more. The polyvinyl alcohol-based resin is not particularly limited, and the average degree of polymerization is from about 100 to 5,000 in terms of adhesion. It is preferably from 1 to 4 Torr, and the average degree of saponification is from 85 to 1 Torr. 〇 耳 % %, preferably 9 〇 ~ 1 〇〇 耳 %. The polyvinyl alcohol-based resin containing an ethyl acetonitrile group can be obtained by reacting a polyvinyl alcohol-based resin with acetophenone by a known method. For example, a polyvinyl alcohol-based resin is dispersed. In a solvent such as acetic acid, a method of adding a diethylene glycol to the solvent; and dissolving the polyvinyl alcohol-based resin in a solvent such as dimethylamine or a brothel, and adding a diethyl ether network thereto Method, etc. Further, a method of directly contacting the ethylene glycol or liquid diacetone with polyvinyl alcohol can be mentioned. The degree of modification of the ethyl acetyl group of the polyvinyl alcohol-based resin containing an ethyl acetonitrile group is not particularly limited as long as it is 0.1 mol% or more. If it is less than 1% by mole, the water resistance of the adhesive layer tends to be insufficient. The degree of modification of acetamidine is preferably from about 0. 1 to 40 mol%, more preferably from 1 to 20 mol%, particularly preferably from 2 to 7 mol%. When the degree of modification of the acetamidine group exceeds 4 〇 mol%, there is a case where a sufficient water resistance improving effect cannot be obtained. The degree of modification of acetamidine can be quantified by NMR (NuClear Magnetic Resonance). As the crosslinking agent for the adhesive, a user of the polyvinyl alcohol-based adhesive can be used without particular limitation. A compound containing at least two functional groups reactive with the above polyvinyl alcohol-based resin can be used. For example, an alkyl group having an alkylene group and two amine groups such as ethylenediamine, triethylenediamine, hexamethylenediamine, etc. 136640.doc-21 - 200941049 diamines; indole diisocyanate, hydrogenated toluene diisocyanate, Trimethylolpropane toluene diisocyanate adduct, triphenyldecane triisocyanate, methylene bis(4-phenylmethane) triisocyanate, isophorone diisocyanate and the ketone oxime blocks or Isocyanates such as phenol blocks; ethylene glycol diglycidyl ether, polyethylene glycol diglycidyl ether, glycerol diglycidyl ether, glycerol triglycidyl ether, hydrazine, 6-hexanediol diglycidyl ether, two Hydroxymercaptopropane triglycidyl ether, diglycidyl aniline, diglycidylamine 4 epoxy, single, methicone, ethyl, propionate, butanthine; glyoxal, malondialdehyde , succinaldehyde, glutaraldehyde, maleic aldehyde, o-nonyl benzoate, etc.; thiol glands, methyl trisamine, novolatization, methylurea, hospitalization Amino-formaldehyde such as hydroxylated melamine, acetamidine, benzoquinone and furfural condensate Further, examples of the resin include divalent metals such as sodium, potassium, magnesium, iron, and nickel, and salts of trivalent metals and oxides thereof. Among these, an amine-formaldehyde resin or a dialdehyde is preferred. As the amino-furfural resin, a compound having a methylol group is preferred as the dicarboxylic acid, preferably oxalic acid. Among them, particularly preferred is methylol melamine which is a compound having a mercapto group.调 The amount of the above-mentioned chelating agent can be appropriately set according to the type of the polyvinyl alcohol-based resin in the adhesive, etc., and is equivalent to 100 parts by weight of the polyvinyl alcohol-based resin. It is 2〇~5〇 parts by weight. Within this range, good adhesion can be obtained. In order to improve durability, it is preferred to use a polyvinyl alcohol-based resin containing an ethyl acetate. In this case, it is preferably in the range of 1 Torr to 6 Torr, more preferably 136640.doc -22. 200941049, based on 100 parts by weight of the polyvinyl alcohol resin in the adhesive. A crosslinking agent is used in a range of ~5 parts by weight. If the amount of the crosslinking agent is too high, the reaction of the crosslinking agent is carried out in a short time, and the adhesive is condensed.

As a result of the change in H, there is a case where the service life (application period) as an adhesive is wide and the industrial use becomes difficult. From this point of view, the blending amount of the binder may be the above-mentioned blending amount, and since the resin: the liquid of the present invention contains the colloid of the metal compound, even if the amount of the cross-linking agent is large as described above, it can be imparted with good properties. The metal compound colloid in the adhesive agent is a method in which fine particles are dispersed in a dispersion medium, which is electrostatically stabilized due to mutual repulsion of the same kinds of charges of the fine particles, and is permanently stable. The average particle diameter of the metal compound colloid (fine particles) is hWO. When the average particle diameter of the colloid is in the above range, the metal compound can be substantially uniformly dispersed in the adhesive layer, thereby ensuring adhesion and suppressing cracking. Since the range of the average particle diameter is much smaller than the wavelength region of visible light, even in the formed adhesive layer, even if the transmitted light is scattered by the metal compound, the polarizing characteristics are not adversely affected. The average particle size of the metal compound colloid is preferably 丨~丨(10) nm, more preferably 丨~ other nm °. Various metal compound colloids can be used. For example, examples of the colloid of the metal compound include colloids of metal oxides such as alumina, ceria, zirconia, titania, strontium carbonate, calcium carbonate, and magnesium ruthenate; and metals such as zinc carbonate, cesium carbonate, and calcium phosphate. Colloid of salt; colloid of minerals such as diatomaceous earth, talc, clay, kaolin. The metal compound gum system is dispersed in the dispersion medium and exists as a colloidal solution. The dispersion medium is mainly water. In addition to water, alcohols can also be used. 136640.doc •23· 200941049 Other dispersion media. The solid part of the colloid of the metal compound in the body fluid is not particularly limited, and the knife is 1 to 30% by weight. Further, the amount of 厶 is about %, and more usually, acid, acetic acid, etc., a compound colloid, and an acid containing a sulphuric acid or a salt temple can be used as a stabilizer. Metal compound colloidal static mine ~ When there is a negative charge, the metallized person is divided into a material having a positive charge and a material having a non-conductivity. The positive charge is distinguished by the electrical enthalpy of the colloidal surface charge of the solution after the preparation of the adhesive. The charge of the metal compound colloid can be confirmed, for example, by measuring the zeta potential by means of a helium gas. The surface charge of a metal compound colloid usually varies according to the division. Therefore, the charge of the colloidal solution of the present application is affected by the preparation of the adhesive solution. The pH of the subsequent solution is usually set to 2 to 6, preferably 2.5 to 5', more preferably 3 to 5, and still more preferably 3.5 to 4.5. In the present invention, the compound of the (4) colloid which has a negatively charged metal compound colloid inhibits the generation of cracks more. Examples of the colloidal metal compound colloid include an oxidized gelatin body, an oxidized gelatin body, and the like, and an oxidized gelatin body is particularly suitable. The metal compound kicking body is preferably blended in a ratio of not more than 重量 parts by weight based on the weight of the polyvinyl alcohol-based resin (10) (converted value of the solid content). By setting the compounding ratio of the metal compound colloid to the above range, the adhesion between the polarizing element and the protective film can be ensured, and the occurrence of cracks can be suppressed. The blending ratio of the metal compound colloid is preferably from 1 to 2 parts by weight, more preferably from 5 parts by weight, and still more preferably from 3 to 15 parts by weight. If the blending ratio of the metal compound colloid to the polyvinyl alcohol-based resin is excessive, there is 136640.doc -24- 200941049. The next step is to hide the letter shape. If the blending ratio of the metal compound colloid is small, J may not be fully obtained. The case of suppressing the effect of crack initiation. Such an adhesive is usually used as an aqueous solution. The concentration of the resin solution is not particularly limited. When the coating property, the standing stability, and the like are taken into consideration, the resin 'liquid ratio/length is from 0.1 to 15% by weight, preferably from 0.5 to 10% by weight. The viscosity of the resin solution as the adhesive is not particularly limited, and a range in which the viscosity is u mPa s can be suitably used. Usually, when the polarizing element is followed by the 蒦 明 蒦 , film, as the viscosity of the adhesive decreases, the resulting 曰 曰 ' 'If the adhesive is composed as described above, it will not be affected by the tree. The limitation of the viscosity of the Moonlight's liquid mixture, even in the low viscosity range of the range of 1 to 20 mPa.s, can also suppress the occurrence of cracks. Compared with the conventional polyvinyl alcohol tree, the polyvinyl alcohol-based resin containing an ethyl acetate group cannot increase the degree of polymerization, and therefore, although it is used at a low viscosity as described above, the above composition is made by following /=iJ. Further, even when a polyvinyl alcohol-based resin containing an ethyl acetate-based base is used, cracking due to low viscosity of the resin solution can be suppressed.制备 There is no particular limitation on the preparation method of the resin solution as an adhesive. The resin solution is usually prepared by blending a metal compound colloid in a mixture in which a polyvinyl alcohol-based resin and a crosslinking agent are mixed and adjusted to an appropriate concentration. Further, when a polyvinyl alcohol-based resin containing an ethyl acetonitrile group is used as the polyvinyl alcohol-based resin, or when the amount of the crosslinking agent is large, the stability of the solution can be considered. After the resin is mixed with the metal compound colloid, the crosslinking agent is mixed while considering the use period of the obtained resin solution. Further, the concentration of the resin solution as the adhesive may be appropriately adjusted after preparing the resin solution. 136640.doc •25· 200941049 In addition, 'adhesive agent can also be added to the step (4) coupler, titanium coupling agent and other coupling agents' various tackifiers, UV absorbers, antioxidants, heat stabilizers, hydrolysis stability Stabilizers such as agents. Further, the colloidal metal compound in the present application is a non-conductive material, but may also contain fine particles of a conductive material. When the polarizing element p and the polyacetal film formed with the adhesive layer are laminated by using an adhesive, the adhesive can be applied to the surface of the easy-to-layer layer and the polarizing element ρ of the film ε. In one case, it can also be applied to both. It is preferred to apply the adhesive so that the thickness of the adhesive layer G after drying becomes about 〇3 to 3 〇〇 nm. The thickness of the adhesive layer layer is preferably from 1 〇 to 2 〇〇 nm, more preferably from 2 〇 to 15 Å, in terms of obtaining a uniform in-plane thickness and obtaining a sufficient adhesion. Further, when a resin solution containing a polyvinyl alcohol-based resin, a crosslinking agent, and a metal compound colloid having an average particle diameter of nm is used as an adhesive, the thickness of the adhesive layer G is preferably a design. It is larger than the average particle diameter of the colloid of the metal compound contained in the adhesive. The method of adjusting the thickness of the adhesive layer G is not particularly limited, and examples thereof include a method of adjusting the solid content concentration of the adhesive solution or the coating device of the adhesive. The method for measuring the thickness of such an adhesive layer is not particularly limited, and it is preferably employed by SEM (Scanning Elect_).

MiCr0SC0py, scanning electron microscopy) or TEM (Transmiss_

Electron Microscopy' transmission electron microscopy was used to perform cross-sectional observation measurement. The coating operation of the adhesive is not particularly limited, and various methods such as a roll coating method, a spray method, and a dipping method can be employed. 136640.doc -26- 200941049 Further, it is also possible to carry out surface modification treatment on the easy-to-continue layer formed on the ε film ε before applying the adhesive. As a specific treatment, for example, corona treatment, electropolymerization treatment, primer treatment, I treatment, or the like can be performed. After the application of the adhesive, the polarizing element ρ is bonded to the polyacetate by a roll laminator or the like. As described above, the moisture content of the polarizing element supplied to the bonding step is 10 to 30% by weight, more preferably 12 to 28% by weight, still more preferably 16 to 25% by weight. By setting the water content to the above range, the degree of polarization can be kept high, and cracking or unevenness in appearance can be prevented. Further, from the viewpoint of stabilizing the optical properties of the polarizing degree or the color, it is preferred to apply the polyester film to both surfaces of the polarizing element and then dry it at an appropriate drying temperature. From the viewpoint of optical characteristics, the dryness is preferably 9 (TC or less, more preferably 85. 〇 or less, and even more preferably 8 〇t or less. Further, there is no lower limit of the drying temperature, but considering In the efficiency or practicability of the step, it is preferable to carry out the drying. The drying temperature may be gradually increased in the above temperature range to be dried. φ [Laminated form of polarizing plate] The polarizing plate of the present invention will be The polyester film ε having the above-mentioned easy-adhesion layer 层叠 is laminated on at least one main surface of the polarizing element 。. Examples of such an embodiment include, for example, the forms of Figs. 1(a) to 1(c). The configuration of the above is described in detail. [Laminated Form a] Fig. 1(a) shows a form in which a polyester film e is laminated on both main surfaces of a polarizing element P. In this form, it is preferable that Fig. 1 (a) ), an easy adhesion layer H is formed on the two polyester films. Further, 136640.doc -27- 200941049 polyester film E laminated on the main surface of the polarizing element ρ, and laminated on the other main surface The polyester film E can be the same or the same. (The phase difference of the polyester film) As the polyester film E, a double fold can be used. The front phase difference that is small and does not change the polarization state is less than 40 nm, and the phase difference in the thickness direction is less than 8 〇. For such a birefringent polyester film, it is suitable to use unstretched 臈. The difference Re can be expressed by Re = (nx_ny) xd. The thickness direction phase difference Rth can be expressed by Rth = (nx - nz) xd. In addition, the Nzs number can be expressed by Nz = (nx - nz) / (nx - ny) [ The refractive index of the slow axis direction, the fast axis direction, and the thickness direction of the film are respectively nx, ny, nz, and d (nm) is the thickness of 臈. The direction of the refractive index in the plane of the slow axis is the largest. On the other hand, by using a polyester film having a front phase difference of 4 〇 nm or more and/or a thickness direction retardation of 80 nm or more, the polarizing element protective film can also function as a phase difference plate. In this case, the front phase difference or the thickness direction phase difference can be appropriately adjusted to a value necessary for optical compensation as a phase difference plate. As the phase difference plate, an extended polyester film can be suitably used. One of the main surface sides of the element p has a different phase from the other main surface side The polyester film E having a value of, for example, a liquid crystal display device Ν'' can be configured as a polyester film disposed between the polarizing element and the liquid crystal cell, and an unstretched poly 8 is used in a state where the polarization state is not changed. The ruthenium film 'is a polyester film disposed on the other side, that is, the outer side, and an extended polyester film is used for ensuring strength. The above-mentioned phase difference plate can be selected and used in accordance with various uses to satisfy 136640.doc -28· 200941049 nx=ny 〉nz, nx>ny>nz, nx>ny=nz, nx>nz>ny, nz=nx>ny,nz>nx>ny,nz>nx=ny. Furthermore, the household name is ny=nz, which means not only that ny and nz are exactly the same, but also the case where ny and nz are substantially the same. For example, in the phase difference plate satisfying nx > ny > nz, it is preferable to use a case where the front phase difference is 40 to 100 nm, the thickness direction phase difference is 100 to 320 nm, and the Nz coefficient is 1.8 to 4.5. For example, in a phase difference plate (positive A plate) satisfying nx > ny = nz, it is preferable to use a case where the front phase difference is 100 to 200 nm. For example, in the phase difference plate (negative A plate) satisfying nz = nx > ny, it is preferable to use a case where the front phase difference is 100 to 200 nm. For example, in the phase difference plate satisfying nx > nz > ny, it is preferable to use a case where the front phase difference is 150 to 300 nm and the Nz coefficient is more than 0 and 0.7 or less. Further, as described above, for example, nx = ny > nz, nz > nx > ny or nz > nx = ny can be used. (Lamination of Polarizing Element and Polyester Film) As for the lamination of the polarizing element P and the polyester film E on which the easy-adhesion layer is formed, it is sufficient that at least one polyester film is laminated by the adhesive layer G. From the viewpoint of efficiency, it is preferred that the two polyester films E are laminated with the polarizing element P via the adhesive layer G as shown in FIG. 1(a). [Layered form b] Fig. 1(b) is a polyester film E in which an easy-adhesion layer is formed on one main surface of a polarizing element P, and a polyester film is laminated on the other main surface of the polarizing element P. The transparent film is in the form of a protective film. (Transparent film) 136640.doc -29- 200941049 The transparent film τ other than the vinegar is not particularly limited, and any of them can be used. As the material of such a transparent film, for example, a thermoplastic resin excellent in transparency, mechanical strength, thermal stability, moisture barrier property, and isotropic property can be used. Examples of the thermoplastic resin include a cellulose resin such as cellulose triacetate, a polyester resin, a polyfluorinated resin, a polysulfone tree, and a polycarbonate S. A resin, & guanamine f, a resin, a polyimide resin, a polyene fluorene tree, a (meth)acrylic resin, a cyclic olefin resin (ice-free: an olefin resin), (4) Vinegar resin, polystyrene resin, polyethylene

Dilute alcohols are known and mixtures thereof. Further, the transparent film T is also a thermosetting resin such as a (meth)acrylic acid, an urethane-based compound, an urethane urethane-based oxime system or a fluorene-based system, or an ultraviolet-curable tree-permeable moon-film. τ may contain one or more of any appropriate additives. Examples of the additive include an ultraviolet absorber, an antioxidant, a lubricant plasticizer, a mold release agent, a coloring inhibitor, a flame retardant, a nucleating agent, an antistatic agent, a pigment, a coloring agent, and the like. The ruthenium of the above thermoplastic resin in the transparent film T is preferably 50 to 10 Å by weight ◦/◦, more preferably 50 to 99% by weight, and further

Better 疋 60~98 weight. /0, particularly preferably 7〇~97% by weight. In the case where the content of the thermoplastic resin is 50% by weight or less in the transparent film T, "b" cannot sufficiently exhibit the high transparency which the thermoplastic resin originally has. From the viewpoint of transparency or optical isotropicity as the transparent film T, it is preferred to use a cellulose resin, a polycarbonate resin, a cyclic rare resin, and a (fluorenyl) acrylic acid. Any of at least one of the resins. 136640. -30· 200941049 As the cellulose resin, cellulose vinegar which is made by blending a fatty acid with a fatty acid is suitable. Specific examples of such cellulose vinegar include cellulose acetate, cellulose monoacetate, cellulose tripropionate, diacrylic acid fiber, and elemental. Particularly preferred among these are cellulose triacetate. Triacetate Cellulose is commercially available in a number of products, and is also advantageous in terms of ease of availability. As an example of a commercial product of cellulose triacetate, the product name "uv_50", "UV 8〇", "sh 8〇", "TD-晴", "TD_TAC", "" manufactured by Fujifilm Co., Ltd." UZ_TAC" or "KC series" manufactured by Konica (Knocks, Inc.). Generally, the in-plane retardation Re of cellulose triacetate is approximately 〇, and the phase difference Rth in the thickness direction is about 6〇^1. The cellulose resin film having a small phase difference in the thickness direction can be obtained, for example, by treating the cellulose resin. For example, a pair of solvents coated with a solvent such as cyclopentanone or mercaptoethyl ketone can be mentioned. A substrate film of ethylene phthalate, polypropylene, stainless steel or the like is bonded to a common cellulose resin film Φ, and dried by heating (for example, drying at 80 to bOt: for about 3 to 1 minute). a method of peeling off a base film; applying a solution of a norbornene resin or a (mercapto)-acrylic acid-based resin to a solvent such as cyclopentanone or methyl ethyl ketone; Drying on a plain resin film (for example, drying at 80 150 C) After the film is peeled off, the method of peeling off the coating film, etc., can be used as the cellulose resin film having a small degree of retardation in the thickness direction, and a resin film of a cellulose ester having a controlled degree of substitution can be used. The degree of substitution of acetic acid in cellulose acetate is about 2.8, preferably acetic acid is taken as 13664 〇. <J〇c -31 - 200941049 :: control is 1 > 8~2.7, whereby Rth can be reduced. The acid cellulose resin is added with a plasticizer such as dibutyl phthalate, p-toluidine, acetonitrile, citric acid, etc., and the touch is controlled to be small. The amount is preferably 40 parts by weight or less, more preferably _ parts by weight, more preferably 1 to 15 parts by weight, based on the fatty acid cellulose (tetra) lipid (10). Rings (4) (4) Resin (4) 彳, (4) The olefin-based resin is a general term for a resin obtained by polymerizing a cyclic hydrazine-based hydrocarbon as a polymerization unit, and for example, JP-A No. 40517, Japanese Patent Laid-Open No. Hei 3_14882 The resin described in Japanese Patent Laid-Open No. 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 cyclic olefin, and an copolymer of α and a olefin; And a graft polymer obtained by modifying the unsaturated carboxylic acid or a derivative thereof, and a hydrogenated product thereof, etc. Specific examples of the cyclic olefin include norbornene. The olefin-based resin is commercially available as various products. Specific examples include the product names "(10)," "Zeonor", and JSR Co., Ltd., which are manufactured by Zeon Co., Ltd., Japan. "Αη〇η", the product name "Topas" manufactured by TICONA, and the trade name "Apel" manufactured by Mitsui Chemicals Co., Ltd. As the (meth)acrylic resin, the Tg (glass transition temperature) is preferably 疋115C or more, and more preferably 120 C or more, and more preferably i25 ° C or more. Particularly preferably 130 ° C or more. . By having a Tg of 115 ° C or more, the durability of the 136640.doc -32 - 200941049 polarizing plate is excellent. The upper limit of the (meth)acrylic resin is not particularly limited, and from the viewpoint of moldability and the like, it is preferably 170 C or less. A film having an in-plane retardation (Re) and a thickness direction retardation (Rth) of approximately 〇 can be obtained from the (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, poly(meth)acrylic acid vinegar, methyl mercaptopropionate methyl ester-(mercapto)acrylic acid copolymer, methyl methacrylate_(meth)acrylate, etc. Copolymer, methyl methacrylate-acrylate-(meth)acrylic acid copolymer, (meth)acrylic acid methacrylate-styrene copolymer (MS resin, etc.), polymer having an alicyclic hydrocarbon group (for example, methyl group) Methyl acrylate-methyl methacrylate cyclohexyl ester copolymer, methyl methacrylate _ (methyl) propionic acid norbornyl ester copolymer, etc.). Preferably, poly(methyl)acrylic acid C1 to 6 alkyl ester such as poly(methyl) acrylate is used. More preferably, it is a mercaptomethyl acrylate-based resin having methyl methacrylate as a main component (50 to 100% by weight, preferably 70 to 1 Å by weight). Specific examples of the resin are, for example, Acrypet VH or Acrypet VRL20A manufactured by Mitsubishi Rayon Co., Ltd., and (Methyl) having a ring structure in the molecule described in JP-A No. 20-70-29A An acrylic resin, a high Tg (mercapto) acrylic resin obtained by intramolecular crosslinking or intramolecular cyclization. As the (meth)acrylic resin, a lactone ring structure can also be used. Acrylic resin. This is because the (meth)acrylic 136640.doc -33- 200941049 resin has high heat resistance, high transparency and high mechanical strength by biaxial stretching. The (meth)acrylic resin of the ring structure is exemplified by the following: Japanese Laid-Open Patent Publication No. 2000-230016, Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. Hei. No. Hei. The (fluorenyl) acrylic resin having a lactone ring structure described in JP-A-2002-254544, JP-A-2002-254-A, and the like. The (meth)acrylic resin is preferably a cyclic structure represented by the following formula (1): [Chemical Formula 1] 9〇〇R2 3 In the winter formula, RR and R each independently represent a hydrogen atom. Or an organic residue having a carbon number of 20. Further, the organic residue may further contain an oxygen atom. The structure of the (meth) propylene-based resin having a ring structure within the s- The content of the inner ring structure of Table 7 is preferably from 5 to 5% by weight, more preferably from 10 to 70% by weight. | / _ 里 / 〇 and further preferably from 10 to 60% by weight, particularly good Is 10~5〇重#./.# i & 篁/〇 The structure of the (meth) propanolic acid resin having a lactone ring structure is represented by the formula (Chemical Formula 1) The content of the lactone ring structure is less than 5 wt%. / , The shell, the solvent resistance, the surface hardness may become insufficient. In the structure of the (meth)acrylic resin of the coating structure, the content of the lactone ring structure represented by the formula (Formula 矣 矣 Λ 化 (Chemical Formula 1) is I36640.doc -34· 200941049. The ratio is greater than 90% by weight. %, there is a case where the formability is lacking. The weight average molecular weight (sometimes referred to as weight average molecular weight) of the (meth)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, especially good 50〇〇〇~500000. If the weight average molecular weight is out of the above range, there is no shortage of moldability. The Tg of the (meth)acrylic resin having a lactone ring structure is preferably 0 U5 C or more, more preferably 120 ° C or more, further preferably 125 ° C or more, particularly preferably 130 °. c or more. By Ding § is 115. In the case where the resin is formed into the polarizing film τ (polarizing element protective film) in the polarizing plate of the present invention, the resin 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 17 (r or less). For a lactone ring structure. In the (meth)acrylic resin, the higher the total light transmittance of the molded article obtained by injection molding and formed by the φ method based on ASTM_D·丨003, the better, preferably 85%. More preferably, it is 88% or more, more preferably 9 % by weight or more. The total light transmittance is a standard of transparency, and if the total light transmittance is less than 85%, there is a case where the transparency is lowered. The transparent film τ includes a polymer film described in JP-A No. 2-343529 (W〇〇1/37007), for example, containing (1) a substituted and/or unsubstituted yam having a side chain. An amine-based thermoplastic resin and (II) a resin composition having a substituted and/or unsubstituted phenyl group and a nitrile group-containing thermoplastic resin in a side chain. Specific examples include a composition comprising 136640.doc - 35- 200941049 ,, diene and N-methyl-butylene diimine The resin composition of the alternating copolymer and the acrylonitrile-stirsty copolymer is used. The film is a film of a mixed extrusion product containing a resin composition, etc. The phase difference λΙ, 'and the light-elastic coefficient of the medium such as Yanhai Therefore, it is possible to eliminate the unevenness ffii caused by the strain of the polarizing plate, and since the moisture permeability of the films is small, the durability of the thirst is excellent. The thickness of the translucent film T can be appropriately confirmed. The above-mentioned polyacetate film is similarly the same, preferably 5 to 500 Å, more preferably 5 to 200 μm, and even more preferably 10 to 1 50 μηι 〇 as a transparent film, or a small birefringence. It does not convert polarized light (4), and can play any role as a phase difference plate. Polysulfone, polyethylene terephthalate, polynaphthalene dicarboxylic acid [monosulfone, polyphenylene sulfide, polyphenylene ether, Polyallylsulfone, polyamine, polyimine, polysulfide, polystyrene, cellulose resin, cyclic olefin resin (norborning resin) or such binary or ternary Various copolymers, graft copolymers, blends, etc. The polymer materials are extended by The liquid crystal polymer is, for example, a main chain in which a linear atomic group (liquid crystal primordium) which imparts a liquid crystal alignment property to the liquid crystal is introduced into the main chain or the side chain of the polymer. In the case of a liquid crystal polymer of a type or a side chain type, as a main chain type liquid crystal, when a function of a retardation plate is used as a transparent film, as the polymer material, for example, polyethylene glycol, Polyethylene ethyl butyric acid, polymethylethylene _, polyacrylic acid by base ethyl succinct, trans-ethyl cellulose, propyl propyl cellulose, methyl cellulose, polycarbonate S, poly vinegar, Ester, polyfluorene 136640.doc -36 - 200941049 Specific examples of the smear are, for example, a nematic collateral liquid crystal polymer having a structure which imparts a clear primordium to the flexible spacer base. , disc-shaped polymer or cholesterol polymer, and the like. The 'body type' of the side chain type liquid crystal polymer is exemplified by poly-stone oxy-oxygen, polyacrylic acid s, polymethyl ketone acid or poly-propionic acid g as a main chain skeleton, and includes a common vehicle. The spacer base portion of the atomic group has a liquid crystal primordial portion including a para-substitution-substituted cyclic atomic unit having a T-alignment, and is a side chain or the like. For the liquid crystal polymer, for example, a surface obtained by rubbing a surface of a film of a polyimide or a polyethylene glycol which is formed on a glass plate, and an alignment of an oblique steaming key, a oxidized stone, etc. On the treated surface, a solution of the liquid crystal polymer is developed and heat treated. The retardation plate may be, for example, a variety of wave plates or an appropriate phase difference corresponding to the purpose of use, such as compensation for coloring or viewing angle caused by birefringence of the liquid crystal layer, or two or more types may be used. The phase difference plates are stacked to control optical characteristics such as phase difference. Further, it is also possible to specify that the film having the phase difference is attached to the transparent film having no phase difference to impart the above-described function. In addition, in terms of achieving a wide viewing angle, such as a wide viewing angle, a cellulose triacetate film is also used to support an alignment layer containing a liquid crystal polymer, in particular, a tilt alignment layer optical compensation phase difference plate of a disc-shaped liquid crystal polymer. Wait. The preliminarily of the injection layer The lamination of the polarizing element P and the condensed film E is carried out as described above. Further, similarly to the lamination of the polarizing element p and the transparent film, a preferable 0 is performed via the patch layer. When the polarizing element p and the transparent film are laminated, it is preferable to use a polyvinyl alcohol-based resin, a crosslinking agent, and a metal compound colloid in view of suppressing generation of unevenness defects. Resin solution. Further, when the polarizing element p and the transparent film τ are laminated, the surface of the transparent film τ may be subjected to surface modification treatment by applying the fourth agent. As the surface modification treatment, a method of forming the above-mentioned one as an easy-to-adhere layer or a corona treatment, a plasma treatment, a primer treatment, a saponification treatment or the like can be used. [Laminated Form C] Fig. 1(c) shows a state in which a polyester film e is laminated on one main surface of a polarizing element P, and a film is not laminated on the other main surface. In this embodiment, the lamination of the polarizing element P and the condensed film is carried out via the adhesive layer G as described above. [Other Optical Layers] (Formation of Surface Treatment Layer) The polarizing plate of the present invention is not limited in shape as long as at least one of the polyacetate standing on the at least one main surface and having the layer of the easy-to-layer layer is formed. Any of the optical layers may be added as described in the above laminated forms (4) to (c). Such a light material may be, for example, a hard coat layer or an anti-reflection treatment and anti-adhesion, diffusion or anti-glare on the main surface of the unlaminated polarizing element P of the above-mentioned polyester film or/transparent film T. The handler of the purpose. In order to prevent the surface of the polarizing plate from being damaged or the like, the hard coating treatment can be performed by, for example, a hardened film 14& which is excellent in hardness and sliding properties, which are formed of an appropriate ultraviolet curable resin such as acrylic acid or oxygen. The surface of the above-mentioned polyester film or transparent film T is formed or the like. Anti-reverse 136640.doc -38· 200941049 Injection treatment (4) The prevention of external light reflection on the surface of the polarizing plate can be achieved by forming a conventional anti-reflection film or the like. χ, anti-point processing system To prevent adhesion to adjacent layers (for example, the diffuser on the backlight side)

Further, the anti-glare treatment is performed by preventing the external light from being reflected on the surface of the polarizing plate and obstructing the transmission of light from the polarizing plate. For example, it may be formed by a method of sandblasting or rough processing by a sandblasting method or a pattern processing method. A fine concavo-convex structure is imparted to the surface of the polyester film Ε and/or the transparent film τ in an appropriate manner, such as a method of dispersing or a method of blending transparent fine particles. As the fine particles contained in the above-described surface fine uneven structure, for example, cerium oxide, aluminum oxide, titanium oxide, zirconium oxide, tin oxide, indium oxide, cadmium oxide, or oxidation having an average particle diameter of 〇.5 to 20 (four) can be used. The inorganic fine particles "which are also electrically conductive" include transparent fine particles such as organic fine particles such as crosslinked or uncrosslinked polymers. When the surface fine uneven structure is formed, the amount of the fine particles used is usually about 2 to 7 parts by weight, preferably 5 to 5 parts by weight, based on the amount of the transparent resin (10) which is formed into the fine surface uneven structure. The anti-glare layer may be a diffusion layer (viewing angle expanding function or the like) which expands the viewing angle or the like for diffusing the transmitted light of the polarizing plate. Further, the antireflection layer, the anti-adhesion layer, the diffusion layer or the anti-glare layer may be provided separately as the optical layer in addition to the polyester film Ε&/or the transparent film itself. . In addition, examples of the optical layer which can be applied to the polarizing plate of the present invention include a bright film, a reflective layer, a phase difference plate and the like. (Brightness Enhancement Film) 136640.doc -39· 200941049 The brightness enhancement film system exhibits characteristics such as when a backlight of a liquid crystal display device or the like is incident, or natural light is incident by reflection from the back side or the like, A linearly polarized light of a predetermined polarization axis or a circularly polarized light of a predetermined direction is reflected, and other light is transmitted; and a light-emitting film and a polarizing plate are laminated, and light from a light source such as a backlight is incident to obtain a transmitted light of a predetermined polarization state. And the light other than the predetermined polarized state is reflected and not transmitted. The light reflected by the brightness enhancement film is further inverted by a reflection layer or the like provided on the rear side thereof, and then incident on the brightness enhancement film again, and a part or all of the incident light is transmitted as light of a predetermined polarization state. Thereby, the amount of light transmitted through the brightness enhancing film is increased, and the polarized light which is hard to be absorbed by the polarizing element is supplied, so that the amount of light available for display of an image such as a liquid crystal display is increased, whereby the brightness can be increased. A polarizing plate obtained by laminating a polarizing plate and a brightness enhancement film is provided on the backlight side of the liquid crystal cell, and may be used as shown in the international publication of WO 2006/038404. . As the brightness enhancement film, for example, a multilayer film of a dielectric body or a multilayer laminate of films having different refractive index anisotropy can be used, and a characteristic that reflects a linear polarization of a predetermined polarization axis and reflects other light can be used. And an alignment film such as a cholesteric liquid crystal polymer or a aligning liquid crystal layer supported on the film substrate, exhibiting any characteristic of causing the left-hand or right-handed to be reflected by the polarized light to transmit other light. Wait for the appropriate person. (Reflective layer) By providing a reflective layer on the polarizing plate of the present invention, a reflective polarizing plate can be obtained. The reflective polarizing plate is a liquid crystal display device 136640.doc-40·200941049 of a type that reflects incident light from the viewing side (display side) by a polarizing plate, and can be omitted from a light source such as a backlight. Therefore, the liquid crystal display device can be easily thinned and the like. The reflective polarizing plate can be formed by appropriately attaching a reflective layer containing a metal or the like to one surface of the polarizing plate via the above-mentioned polyester film E or transparent crucible T or the like. Further, the semi-transmissive polarizing plate can be obtained by forming a semi-transmissive reflective layer such as a semi-mirror surface which reflects light and transmits the reflection layer as described above. The semi-transmissive polarizing plate is usually disposed on the back side (backlight side) of the liquid crystal cell, and can form a liquid crystal display device or the like of the following type: when a liquid crystal display device or the like is used in a relatively bright environment, the viewing side is made The incident light on the (display side) is reflected and displayed, 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 be used to form a liquid crystal display device of a type in which a light source such as a backlight can be saved in a bright environment, and a built-in light source can be used in a relatively dark environment. [Phase Difference Plate] As the phase difference plate, 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 supporting a liquid crystal polymer by a film may be used. The phase difference plate. An elliptically polarizing plate or a circularly polarizing plate will be described as an example of a laminated polarizing plate in which a retardation plate is laminated on a polarizing plate. A phase difference plate or the like is used when converting linear polarization into elliptically polarized or circularly polarized light, converting elliptically polarized or circularly polarized light into linearly polarized light, or changing the direction of polarization of linearly polarized light. In particular, as a phase difference plate that converts linearly polarized light into circularly polarized light or converts circularly polarized light into linearly polarized light, a so-called 1/4 wave 136640.doc •41 _ 200941049 piece (also referred to as λ/4 plate) can be used. A 1/2 wave plate (also known as a λ/2 plate) is usually used when changing the direction of polarization of linear polarization. The elliptically polarizing plate can be effectively used for compensating (preventing) the coloring (blue or yellow) generated by the birefringence of the liquid crystal layer of a super twisted nematic (STN) type liquid crystal display device, thereby performing no The case where the white and black of the above coloring is displayed. Further, it is preferable that the elliptically polarizing plate whose three-dimensional refractive index is controlled can also compensate (prevent) the coloring generated when the inside of the liquid crystal display device is viewed from the oblique direction. The circularly polarizing plate can be effectively used, for example, in the case of adjusting the image color tone of a reflective liquid crystal display device in which the image is displayed in color, and also has an anti-reflection function. Further, the elliptically polarizing plate or the reflective elliptically polarizing plate is formed by laminating a polarizing plate or a reflective linear polarizing plate and a phase difference plate in an appropriate combination. The elliptically polarizing plate or the like may be formed by sequentially laminating the liquid crystal display device in a process of manufacturing a liquid crystal display device by forming a combination of a (reflective) polarizing plate and a phase difference plate, but as described above. When an optical compensation polarizing plate such as an elliptically polarizing plate is formed in advance, it is excellent in quality stability or lamination workability, and the manufacturing efficiency of a liquid crystal display device or the like can be improved. The viewing compensation film is used to expand the film of the viewing angle so that the image can be seen relatively clearly even when the picture is viewed from a direction that is not slightly inclined perpendicular to the plane of the liquid crystal display device. Such a viewing angle compensation phase difference plate includes, for example, an alignment film of a retardation film liquid crystal polymer or the like, or a support layer such as a liquid crystal polymer or the like, which is supported on a transparent substrate. A common phase difference plate is a polymer having birefringence obtained by uniaxially extending in the plane direction thereof. 136640.doc -42- 200941049 film and phase s, used as a phase difference plate for an angle compensation film. a birefringent polymer film obtained by biaxially stretching in the plane direction; a uniaxially extending in the plane direction and a refractive index in the thickness direction which is controlled in the thickness direction is controlled to have birefringence A polymer film, or a biaxially stretched film such as a tilted alignment film. Examples of the oblique alignment film include a heat-shrinkable film on a polymer film, which is caused by a shrinkage treatment, a stretching treatment or a shrinkage treatment of the polymer film, and a liquid crystal. The polymer is tilted to the resultant and the like. The phase difference material material polymer is the same as the polymer described in the above-mentioned phase difference plate, and can be used to prevent coloring or the like caused by a change in the angle of the liquid crystal cell based on the phase difference of the liquid crystal cell. Appropriate for the purpose of visual recognition and other perspectives. [Lamination of the optical layer] The optical layer such as the brightness enhancement film, the reflective layer, and the retardation film can be formed by sequentially laminating in the process of manufacturing a liquid crystal display device or the like, but the laminate is preliminarily laminated to form a laminated polarizing plate. The quality stability, assembly workability, and the like are excellent, and the advantages of the manufacturing steps of the liquid crystal display device and the like can be improved. An appropriate bonding mechanism such as an adhesive layer can be used for lamination. When these layers are laminated, the optical axis of each optical layer (the slow axis of the retardation film, the absorption axis of the polarizing element, and the like) can be appropriately set according to the target phase difference characteristics and the like. (Adhesive layer) The optical layer of the present invention may be laminated with an optical layer or an adhesive layer for adhering it to another member such as a liquid crystal cell. 136640.doc -43- 200941049 The adhesive layer is not particularly limited, and for example, an acrylic polymer, a siloxane polymer, a polyester, a polyamine phthalate, a polyamide may be appropriately selected and used. A polymer such as a polyether, a fluorine-based or a rubber-based polymer is used as a base polymer. In particular, it is excellent in optical transparency such as an acrylic pressure-sensitive adhesive, and exhibits excellent wettability, cohesiveness, and adhesion properties, and is excellent in weather resistance and heat resistance. In addition, in addition to the above, it is possible to prevent foaming or peeling due to moisture absorption, prevent deterioration of optical characteristics due to poor thermal expansion, or warp of liquid crystal cells, and further improve image quality and durability. In terms of the formability of the device, an adhesive layer having a low moisture absorption rate and excellent heat resistance is preferred. The adhesive layer may also contain a resin such as a natural product or a composite, especially a tackifying resin, including a filler such as glass fiber, glass beads, metal powder, other inorganic powder, or a pigment, a coloring agent, an antioxidant, or the like. : Additives added to the adhesive layer. Further, it may be an adhesive layer containing fine particles and exhibiting light diffusibility.

The adhesive layer may be attached to one or both sides of the polarizing plate or other optical means in an appropriate manner. As an example, for example, the base polymer or a composition thereof may be dissolved or dispersed in a solvent containing a separate substance or a mixture of a suitable solvent such as phthalic acid or the like. ~ Li. The left and right adhesive solutions are directly attached to the polarizing plate or the optical film by casting or coating, and the adhesive layer is formed on the separation film according to the above, and then transferred to the ruthenium film or the like. On the optical layer. ^Stack 136640.doc -44- 200941049 Become an overlapping layer of different types or types and set the first or both sides of the learning layer. Further, the _ ' may also be on the back side of the polarizing plate or the optical film = an adhesive layer of different types or thicknesses. The thickness of the adhesive layer can be appropriately determined by the purpose or the adhesion force, etc., usually, it is preferably 5 to fan (four), and particularly preferably (10) (four). (release film)

For the exposed surface of the adhesive layer, it is preferable to temporarily attach the release film (separation film) to cover it to prevent the loss of the wood, etc., to prevent the normal operation state. Contact the adhesive layer. As the release film', in addition to the above thickness conditions, for example, a plastic film rubber sheet 'paper, cloth, non-woven fabric, mesh, foamed sheet or metal foil, and the like, and the like can be used. The sheet is required to be coated with a suitable release agent such as an oxygen-based or long-chain alkane-based, fluorine-based or molybdenum sulfide, etc., according to the prior art. Furthermore, in the present invention, the polarizing element, the polyester film, the transparent film, or other layers of the optical layer, the adhesive, the adhesive layer, and the like which form the polarizing plate may be formed by, for example, a salicylate compound or A method of treating an ultraviolet absorber such as a benzophenol-based compound, a benzotriazole-based compound, a cyanoacrylate-based compound, or a nickel-salt-based compound, and the like, and having an ultraviolet absorbing function. [Image display device] The polarizing plate of the present invention can be preferably used for forming a liquid crystal display device or an organic EL (Electro-Luminescence) display device, such as an image display device 136640.doc.45-200941049. (Liquid Crystal Display Device) Liquid helium display is formed based on the previous one.艮p, the liquid crystal display device is usually formed by laminating a liquid crystal cell and a polarizing plate, and arranging a layer or two or more layers such as a diffusion plate, an antiglare layer antireflection film, and a protective plate at an appropriate position as needed. , 稜鏡 array, lens array sheet, light diffusing sheet, etc., and other suitable components, and incorporated into the drive circuit. When the liquid crystal display device is formed, it is not particularly limited except for the use of the polarizing plate of the present invention, and it can be carried out according to the prior art. For the liquid crystal cell, for example, a TN (Twlsted Nematic) type, an STN type, or a 兀 type may be used. & The polarizing plate of the present invention may be disposed on one side or both sides of the liquid crystal cell. In the case where the polarizing plate is disposed on both sides, the polarizing plates may be the same or different. Particularly preferably, the polarizing plate of the present invention is integrally bonded to the liquid crystal cell via an adhesive or the like. (Organic EL display device) Next, an electroluminescence device (organic rainbow display device) is used. Generally, 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. Luminescence, light illuminator). Here, the organic light-emitting layer is a layer of various organic thin films, for example, a configuration in which various combinations of the following are included: a hole-laying layer containing a triphenylamine derivative or the like, and a luminescent light containing a fluorescent organic solid such as onion Lamination of a layer of such a light-emitting layer and an electronic wiring layer & laminated body comprising (4) organisms or the like, or a stack of such a hole-laying layer, a light-emitting layer, and an electron-laying layer 136640.doc -46-200941049 Body and so on. The organic EL display device emits light by applying a voltage to the transparent electrode and the metal electrode, thereby implanting holes and electrons in the organic light-emitting layer, and exciting energy generated by recombination of the holes and electrons. A fluorescent substance that emits light when the excited fluorescent substance returns to the ground state. The recombination mechanism in the middle is the same as that of the ordinary diode, and it is also predicted that the current and the luminous intensity exhibit strong nonlinearity accompanying the rectification with respect to the applied voltage. In an organic EL display device, in order to emit light from the organic light-emitting layer, at least one of the electrodes must be a transparent electrode, and a transparent electrode formed of a transparent conductor such as Indium Tin Oxide (IT) is usually used. Used as an anode. On the other hand, in order to easily implant electrons and improve luminous efficiency, it is important to use a material having a small work function at the cathode, and a metal electrode such as Mg_Ag or Al-Li is usually used. In the organic EL display device having the above configuration, the organic light-emitting layer is formed by an extremely thin film having a thickness of about 10 nm. Therefore, the organic light-emitting layer also transmits light almost completely, similarly to the transparent electrode. As a result, when the light is not emitted, it is incident from the surface of the transparent substrate, and the light transmitted through the transparent electrode and the organic light-emitting layer and reflected by the metal electrode is again emitted to the surface side of the transparent substrate, so that the organic EL display device is visually viewed from the outside. The display surface looks like a mirror. An organic EL display device including an organic electroluminescence device having a transparent electrode on the surface side of the organic light-emitting layer that emits light by applying a voltage and having a metal electrode on the back side of the organic light-emitting layer can be transparently 136640.doc •47- 200941049 A polarizing plate is disposed on the surface of the pole, and a phase difference plate is disposed between the transparent electrodes and the polarizing plate. Since the phase difference plate and the polarizing plate have an effect of polarizing light which is incident from the outside and reflected by the metal electrode, there is an effect that the mirror surface of the metal electrode cannot be visually observed from the outside by the polarizing action. In particular, when the retardation plate is formed by a quarter-wave plate and the angle formed by the polarization directions of the polarizing plate and the phase difference plate is adjusted to π/4 (90 Å), the mirror surface of the metal electrode can be completely shielded. That is, it is incident on the external light of the organic EL display device, and only the linearly polarized light component is transmitted through the polarizing plate. The linearly polarized light is usually elliptically polarized by the phase difference plate, especially when the phase difference plate is a quarter wave plate and the angle formed by the polarization directions of the polarizing plate and the phase difference plate is π/4 (9 〇). Will become a circular polarized light. 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 to be transmitted again through the organic thin film, the transparent electrode, and the transparent substrate, and is again linearly polarized by the phase difference plate. Further, since the linearly polarized light is orthogonal to the polarization 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. By using the laminated optical film of the present invention in which, for example, a quarter-wave plate is obtained as an optical compensation layer in order to obtain the circularly polarized light, reflection of external light can be suppressed, and an organic EL display device having high outdoor visibility can be obtained. Further, similarly to the above liquid crystal display device, the organic EL display device is also excellent in abrasion resistance. When the polarizing plate of the present invention is used in such an organic EL display device, 136640.doc -48- 200941049, a polyester film can be used as an optical compensation layer, that is, a quarter-wave plate, and a poly-poly layer can be used. The ester film is used only as any of the constituents of the polarizing element protective film. [Method of Forming Liquid Crystal Display Device] [Formation Method of Liquid Crystal Display Device] ❹ However, when forming an image display device such as a liquid crystal display device or an organic EL display device, in particular, the above-described laminated form 1 is used. (The figure shows that the main surface of the polarizing element p is different from the film laminated on the other main surface, or as shown in the above laminated form c (Fig. 1 (c)), only one of the polarizing elements p When a polarizing plate having a film structure is laminated on the surface, there is a case where the stress applied to the film interface of the polarizing element p is different between the main surface on the side on which the polyester film E is laminated and the other main surface. The layer structure of the back side of the polarizing element p is different, and the external bank force imparted to the polarizing element is different on the back side of the film. Due to the difference of the external stress, the film is easily bent. The film is in the previous manufacturing steps, such as: It is difficult to process into an image display device as described below. As shown conceptually in Figure 2, the manufacturing steps of the prior image device are roughly divided into the manufacturing steps of the optical film manufacturer. And face The processing steps of the processing manufacturer. First, 'the optical film manufacturer manufactures an optical film such as a polarizing plate' as a reel material (#1) of a long strip-shaped sheet product. Then, the reel material is cut into The predetermined size (the size according to the size of the optical display unit) (#2). Then, the size of the optical display unit to be attached to the liquid crystal unit or the organic EL panel is ''^.m ^ The material is cut into a solid size (#3). Next, a single-piece sheet product (optical film) cut into a fixed size is subjected to visual inspection (4). As an inspection method, 136640.doc -49- 200941049 For example, inspection by a visual inspection and inspection using a known inspection device is used. For example, the flaws on the surface or the inside are damaged, damaged, impact-like defects when the foreign matter is caught, uneven defects, bubbles, foreign matter, etc. Finished product inspection (#5). The finished product inspection is based on the quality standard that is judged to be more stringent than the visual inspection. Then, the end face of the square end of the monolithic sheet product is processed (# 6) The end face processing is to prevent the adhesive agent from oozing out from the end face during transportation. Then, in a clean room environment, the single-piece sheet product is subjected to dust-free packaging (#7).

Instead, packaging (transportation) is carried out for transportation (#8). A single sheet product is thus produced and then shipped to a panel manufacturer.

The y panel processing manufacturer unpacks the single piece of the sheet product (#11). Then, a visual inspection is performed to check for damage, stains, etc. caused during transportation or unpacking (#12). The sheet system of the single piece judged to be a good product in the inspection is carried out to the next step. Further, the optical display unit (for example, a liquid crystal cell in which a glass substrate unit in which a liquid crystal cell is sealed) is attached in advance, and the appearance inspection is omitted. Clean the optical display unit (#13) before the step. Following the rfq, the single-piece sheet product and the optical display unit (the liquid crystal cell (4) is peeled off from the single-piece sheet product to retain the adhesive layer', and the adhesive layer is applied as a bonding surface to be attached to the optical Further, one of the display units can be attached to the other side of the optical display unit in the same manner. When the two are attached to the two, the optical display unit can be configured as a conforming (four) structuring optical. The film may be laminated to an optical film of 50%. Then, the bonding state is checked and 瑕136640.doc •50· 200941049 inspection (#15). The optical display unit judged to be a good product in the inspection is transported to The mounting step is installed in the image display device (#16). On the other hand, the optical display unit that is judged to be a defective product is subjected to rework processing (#17 in the heavy-duty processing process), the optical film is peeled off from the optical display unit. The optical film (#14) is reattached to the reworked optical display unit. When the film which is easy to bend is subjected to the previous manufacturing steps as described above, • the polarizing plate exists in a reel shape (#1) ), (#2) steps Because the tension is between the transport lines, the bending behavior is suppressed by the tension. However, after cutting it to a fixed size (#3), the bending of the bending behavior of the polarizing plate is suppressed and the bending is caused. The operation of the appearance inspection (#4)~ bonding with the liquid crystal cell (#14) becomes difficult. Further, in the case of the previous manufacturing steps, in addition to the above-mentioned operational problems due to the bendability, There are many steps such as inspection and packing, and there is a problem that the manufacturing cost rises. [Manufacturing method of continuous method] 藉 By forming this into a long reel-shaped film, the film is pulled down continuously in the presence of tension. The above problem can be solved by adhering to the liquid crystal cell to suppress the bending, that is, the fixed size cutting (#3) previously performed by the optical film manufacturer and the panel processing manufacturer can be continuously performed at one place and Fit to liquid crystal cell (#14), so no visual inspection is required (#fishing, finished product inspection (#5), end face processing (#6), dust-free packaging (#7), shipping package (#8), unpacking) (#U), outside Check (#12), and the operability problem caused by the bending can also be solved. When the image display device is formed by such a continuous method, the reel includes 136640.doc -51 - 200941049 material preparation step, preparing the present invention a long strip of the polarizing plate as a winding material; a cutting step of pulling the sheet product from the reel material, cutting the polarizing plate into a predetermined size using a cutting mechanism; and a bonding step After the cutting step, the polarizing plate is bonded to the optical display unit via an adhesive layer. An example of this will be described below. [Example 1 of the continuous method (normal cutting method (1) First reel material preparation step (Fig. 3, S1) The polarizing plate of the present invention formed into a long strip shape is prepared as the first reel material. The polarizing plate has a second optical film 11 in which at least one polyester film e and an polarizing element p are formed on at least one main surface, and a first optical layer 11, a first adhesive layer 14, and a first The film 12 is formed. Further, the first optical film η may include an optical layer other than the polyester film and the polarizing element. Further, when the second optical film 11 is formed by laminating a film on only one main surface of the polarizing element ρ as shown in the above-described laminated form 〇 (Fig. 1 (c)), it is preferable to use the second optical film. The surface of the polarizing element on the side of the polarizing element 11 has the second adhesive layer 14 and the second release film 12° (2) The first cutting step (Fig. 3, S2), and then the first scroll material is prepared and opened. In the one sheet product, the first optical film u and the first adhesive layer Μ are cut into a predetermined size by a cutting mechanism, but the second release film 12 is not cut. Thereby, the second optical film u and the second adhesive layer 14 can be cut without cutting the first release film 12. Therefore, the first optical film 11 can be formed on the first release film 12 via the first adhesive layer 14, so that the first optical film π does not become t-bend. As the cutting mechanism, for example, a laser device, a cutter, and other well-known cutting mechanisms such as 136640.doc-52-200941049 can be cited. (3) First optical film bonding step (Fig. 3, S3), after the first cutting step, the first release film 12 is removed, and the first release film 12 is removed. The film 11 is bonded to the optical display unit A via the first adhesive layer 14 described above. As a result, the first optical film u can be bonded to the optical display unit A even if the first A (de) 12 peeling is performed, and the f curvature of the first optical film 11 is suppressed. Examples of the optical display unit A include a glass substrate unit of a liquid crystal cell, an organic EL light-emitting unit, and the like. Further, the optical display unit A is subjected to a cleaning process in advance before the bonding. The steps of the first reel material preparation step, the first cutting step, and the second optical film bonding step are performed on a continuous production line. In the manufacturing step of the above-mentioned series, the first optical film 11 is bonded to one surface of the optical display unit A. Hereinafter, the manufacturing steps of bonding the second optical film 21 to the other surface will be described. (4) Second reel material preparation step (Fig. 3, S4) The elongate second sheet product 2 is prepared as the second reel material. Similarly to the case of the first optical film, the laminated structure of the second sheet product 2 includes the second optical film 21, the second adhesive layer 24, and the second release film 12a. Further, as the second optical film, any optical film can be used, and a polarizing plate including a polarizing element is preferable. (5) Second cutting step (Fig. 3, S5) Next, the second sheet material is pulled out from the prepared second reel material, and the second optical film 21 is formed in the same manner as in the case of the first optical film. And the above-mentioned 2,136,640.doc -53 - 200941049, the adhesive layer 24 is cut into a predetermined size, but the second release film 12a is not cut. (6) The second optical film bonding step (Fig. 3, S6), and then after the second cutting step, the second release film 12a' is removed, and the second release film i2a is removed. The optical film 21 is bonded to the surface of the optical display unit a different from the surface on which the first optical film 11 is bonded via the second adhesive layer 24 . By this means, even if the second release film 12 is peeled off, the second optical film 21 can be bonded to the optical display unit while the bending of the second optical film 21 is suppressed. Thereby, the first optical film stack can be bonded to the surface of the optical display unit A, and the second light film can be bonded to the other surface of the optical display unit A to produce an optical display unit having optical films on both sides. Each of the steps of the film bonding step, the second reel material preparation step, the second cutting step, and the second optical film bonding step of the roll glaze material preparation 7 is carried out on a continuous production line. (7) It is preferable that the inspection step further has an inspection step in the continuous step (Fig. 3, (7). 〇 As an inspection step, an inspection step for inspecting the bonding state, and an inspection step for checking the adhesion after the bonding can be exemplified. It is better to perform the inspection of either of them. It is better to carry out the inspection of both. The inspection (8) installation step will be performed in the inspection step to install the optical display unit A of the s-type product on the image display device. In the case of Yu, 疋, 疋 as a non-conforming product, the implementation of heavy industry processing 're-fit light to take M Donggong., then Ming 骐, and then check, if it is judged to be qualified mouth to the installation step' if judged as If the non-conforming product is handed over again, 136640.doc •54- 200941049 to the heavy processing or disposal. In the above-described embodiment, the polarizing plate of the present invention is used as the first optical film 11, but The polarizing plate of the present invention can be used as the second optical film 21. Further, the polarizing plate of the present invention can be used for both the first optical film 11 and the second optical film 21. [Example 2 of the continuous method (jumping) The more cutting method) In the following, an embodiment in which the cutting is performed by the skipping cutting method will be described. This embodiment is an embodiment of the first cutting step and the second cutting step in the embodiment in which the cutting is performed in the usual manner. The sample is deformed. In some cases, the one end portion of the first and second reel materials in the width direction is separated by a predetermined pitch unit (for example, 1000 mm) to encode information (for example, a quick response code, a bar code). The form of the second sheet product (the coordinates, the type and size of the crucible, etc.) is attached to the form. In this case, the code information is read and analyzed before the cutting is performed. The method of avoiding the plague is cut into a predetermined size (sometimes referred to as skipping cut) in the second cutting step. Then, the portion containing the scuffed portion is removed or attached to the non-optical display unit. The upper jaw of the member is cut into a sheet piece of a predetermined size and judged to be a good product, and is formed on the optical display unit. Thereby, the optical σ 0 can be increased, and the yield is increased by Φ5. need The frequency of the processing (#17). The field of the field is not applied to the image method of the over-cut method (jumping cutting method). The flow of the method of the summer method (1) The first reel material preparation step (Fig. 4, si) 136640.doc • 55- 200941049 In the same manner as the above-described normal cutting method, the polarizing plate of the present invention including the first adhesive layer 14 and the first release film 12 is prepared as the second scroll material. (2) First release film removing step (FIG. 4, S61) Then, the first sheet material is prepared by pulling out the first sheet material, and the first release film 12 is removed. The first release film is removed. For the removal method of 12, for example, a method of continuously peeling off the peeled film into a reel; a method of cutting only the first release film into a predetermined size unit and peeling it off with an adhesive tape; And other methods of removing the steps. (3) First inspection step (Fig. 4, S62) Then, after the first release film removal step, a flaw inspection is performed. The second optical film H can be inspected without considering the phase difference between the foreign matter or the damage adhered to the first release film 12 or the inside of the first release film 12 or the first release film. The 瑕疵 inspection can be carried out by a known method. (4) Second release film bonding step (FIG. 4, S63) Then, after the first inspection step, the second release film 22 is bonded to the first optical layer via the first adhesive layer 14 membrane. In the case of lamination, it is preferred to carry out the lamination without generating bubbles or the like, which is preferable because the planarity can be maintained. (5) First cutting step (Fig. 4, S64) Then, after the second release film bonding step, the first optical film 11 and the first adhesive layer 14 are cut into a predetermined shape by a cutting mechanism. The size of the second release film 22 is not cut. Thereby, the first optical film 11 and the first adhesive layer 14 can be cut without cutting the second release film 22. Therefore, the optical film 11 can be formed on the second release film 22 via the first adhesive layer 14 by the first 136640.doc • 56·200941049. Therefore, the first optical film 11 is not bent. Examples of the cutting mechanism include a laser device, a cutter, and other known cutting mechanisms. (6) First optical film bonding step (Fig. 4, S65) Then, in the same manner as in the above-described normal cutting method, the first optical film u is attached to the optical surface while the second release film 22 is removed. Display on unit A. The steps of the first reel material preparation step, the second release film removal step, the i-th inspection step, the second release film bonding step, the second cutting step, and the i-th optical film bonding step are Implemented on a continuous production line. In the series of manufacturing steps described above, the first optical film 11 is bonded to one surface of the optical display unit A. (7) Second reel material preparation step (Fig. 4, S4) The elongate second sheet product 2 is prepared as the second reel material. Similarly to the case of the first optical film, the laminated structure of the second sheet product 2 includes the second optical film 21, the third release film 12a, and the surface protective film 23. (8) The third release film removing step (Fig. 4, S66), and then the second sheet material is pulled out from the prepared second reel material, and the third strip is removed as in the case of the first optical film. The mold film 123 is removed. (9) The second inspection step (Fig. 4, S67) Then, after the third release film removal step, the flaw inspection was performed in the same manner as in the case of the above-mentioned second optical film. (10) Fourth release film bonding step (Fig. 4, S68) 136640.doc -57- 200941049 Then, after the second inspection step, in the same manner as in the case of the first optical film described above, the fourth The release film 22a is bonded to the second optical film 21 via the second adhesive layer 24. (11) Second cutting step (Fig. 4, S69) Next, after the fourth release film bonding step, the second optical film 21 is cut using a cutting mechanism in the same manner as in the case of the above-described second optical film. The second adhesive layer 24 is cut into a predetermined size, but the fourth release film 22a is not cut. (12) Second optical film bonding step (Fig. 4, S70) © Then, after the second cutting step, the fourth release film 22a is removed in the same manner as in the case of the above-described normal cutting method. The second optical film 21 from which the fourth release film 22a is removed is bonded to the optical display unit a via the second adhesive layer 24, and is different from the surface on which the optical film is bonded. On the surface. Further, the first reel material preparation step, the ninth release film removal step, the first inspection step, the second release film bonding step, the second cutting step, the first optical film bonding step, and the second volume The shaft material preparation step, the third release film removal step, the second inspection step, the fourth release film bonding step, the second cutting step, and the second optical film bonding step are all in a continuous production line. Implemented on. (13) Inspection step It is preferable to have an inspection step in the continuous step as in the case of the above-described normal cutting method (Fig. 4, S7). 〇4) Installation procedure 136640.doc •58- 200941049 The optical display unit A judged to be a good product in the inspection step is installed in the device. When it is judged to be a defective product, the rework processing is performed. When the film is judged to be a good product, the parent is transferred to the mounting step, and if it is determined to be a defective product, the process is again transferred to the heavy work process or the waste process. [Applicable to the manufacture of an image display device by a continuous method. [System] The following is an example of an embodiment of the above-described first embodiment (including a manufacturing method including a cutting step by a skip cutting method), and a schematic configuration of the manufacturing system is shown in FIGS. 5A and B. The manufacturing system includes: a first manufacturing unit that bonds the first optical film to the optical display unit; and a second manufacturing unit that bonds the second optical film to the light that is bonded to the first optical film. The first manufacturing unit includes: a first installation mechanism 'the first reel material of the i-th sheet product F1 in which the elongated shape is provided; and a first conveying mechanism from the first reel The first sheet release product F1 is pulled and conveyed; the first release film removal mechanism removes the first release film from the first sheet product that has been conveyed; and the second inspection mechanism 'the first release sheet After the removal of the mold film, the second release film bonding mechanism is inspected after the first inspection, and the second release film is bonded to the first optical film via the first adhesive layer; a cutting mechanism that cuts the first optical film and the first adhesive layer into a predetermined size after bonding the second release film, but does not cut the second release film; the first optical film bonding mechanism After the first cutting process, the first release film after removing the second release film is bonded to the optical 136640.doc -59- via the first adhesive while removing the second release film. 200941049 a display unit; and a first control unit that controls the respective units to interlock. The second manufacturing unit includes: a second setting unit that is provided with a second reel material of the elongated second sheet product F2; (2) The transport mechanism that transports the second sheet product F2 from the second reel material and transports it; the third release film removal mechanism moves itself And the second release film is removed from the second sheet product; the second fatigue inspection mechanism is configured to perform the fatigue inspection after removing the third release film; the *release film bonding mechanism After the second fatigue test, the fourth release film is bonded to the second optical film via the second adhesive layer, and the second cutting mechanism is attached to the fourth release film. The film and the second adhesive layer are cut into a predetermined size without cutting the fourth release film. The second optical film bonding mechanism removes the fourth release film after the second cutting process. The second optical film from which the fourth release film is removed is bonded to a surface of the optical display unit that is different from the surface on which the first optical film is bonded via the second adhesive layer, and a second control mechanism Control is made to link the agencies. The first manufacturing unit and the second manufacturing unit may be driven separately or in a manner of being interlocked. The first control means and the second control means are configured to drive and control a series of processing steps in conjunction. Further, as described in the above-described first embodiment, in the manufacturing method using the usual method without using the skipping cut, the configuration in which the release film removing mechanism, the flaw detecting mechanism, and the release film bonding mechanism are omitted may be employed. (First Manufacturing Unit) The first setting mechanism 3〇1 is provided with a long sheet of the second sheet product. The ninth reel material of 1 is composed of a roller seat device that is freely rotated by 136640.doc -60· 200941049 or rotated at a fixed rotational speed in conjunction with a motor or the like. The rotation speed is set by the second control mechanism 307, and drive control is performed. The first conveying mechanism 302 pulls the first sheet product ^ from the first reel material, and the i-th sheet product is produced? The crucible (or the i-th optical film) is transferred to each processing step. Set the tension controller at an important position in each step. The first transport mechanism 3〇2 is controlled by the first control unit 307. The first release film removing mechanism is peeled off from the conveyed first sheet product F. The first release film is removed and wound into a roll shape. The winding speed of the rolls is controlled by the first control unit 307. The peeling mechanism (see Fig. 5A) is constructed as follows: It has a sharp edge at the front end, and will be the first! The release film is wound around the blade and then transferred, whereby the first release film is peeled off, and the first sheet product F1 from which the second release film is peeled off is conveyed in the conveyance direction. The first inspection mechanism 303 performs a flaw detection after removing the first release film. The first plague inspection mechanism 303 is a CCD (Charge-Coupled Device) camera or a CMOS (complementary Meul_ 〇〇xlde_Semiconductor' CMOS camera), and transmits the acquired image data to the first control mechanism. 3〇7. The first control unit 3〇7 analyzes the image data, detects flaws, and calculates the position coordinates. The position coordinates of the crucible are supplied to the skip cutting of the first cutting mechanism to be described later. After the first raking film inspection, the second release film bonding mechanism bonds the second release film to the first optical film via the first adhesive layer. As shown in FIG. 5a, the second release film is pulled from the reel material of the second release film, and the second release film and the first optical film are sandwiched by one pair or a plurality of pairs, and the roller pair is used. The established 136640.doc • 61 - 200941049 The pressure works and fits it. The rotation speed, pressure control, and conveyance control of the roller pair are controlled by the first control unit 307. After the first release film 304 is bonded to the second release film, the first optical film and the first adhesive layer are cut into a predetermined size ', but the second release film is not cut. The first cutting mechanism 304 is a laser device. The first cutting mechanism 3〇4 is based on the first! The position coordinates of the cockroaches detected during the plague inspection process are cut to a predetermined size so as to avoid the shackles. That is, the cut product including the fatigue portion is excluded as a defective product in the subsequent step. Alternatively, the first cutting mechanism 3〇4 may be neglected to be continuously cut into a predetermined size. In this case, in the bonding process described later, the portion may be removed or attached to the temporary plate unit without being bonded to the portion. Control at this time is also performed by the i-th control mechanism 307. Further, in the first cutting mechanism 304, a holding table for sucking and holding the first sheet product F1 from the back side is disposed, and is in the first! Sheet products? Above the 1st there is a laser mount ^. The laser beam is horizontally moved in the width direction of the first sheet product F1 to be scanned, and the second optical film, the second adhesive layer, and the protective film are cut at a predetermined pitch in the transport direction (hereinafter, appropriately referred to as The second lower release film is retained for the "half cut". Further, the laser device is preferably held in the width direction of the material, and the warm two air nozzle is blown toward the cut portion. The collecting pipe that collects the soot generated by the warm air from the cutting portion is configured as a body. When the I product F1 is adsorbed by the holding stage, it is configured as a conveyor. (4) 1 a 3〇2b moves in the vertical direction so that the continuous conveyance of the first sheet product F1 on the upstream side of the holding table does not stop. This action is also performed by the control of the first control unit 307 by 136640.doc 200941049. After the first optical film bonding mechanism, the second release film is removed, and the second optical film after removing the second release film is attached to the first adhesive layer by the first adhesive layer. Cooperate with the optical display unit w. As shown in Fig. 5B, when the bonding is performed, the pressing roller 305 is used, and the first! Optical film! The film is pressed against the optical display on the 7 GW surface and bonded. The pressing pressure and operation of the roller 3〇5 are controlled by the first control unit 307. The peeling mechanism is configured to have a sharp-edged cutting edge N1, and the second release film 22 is wound around the blade and then conveyed in the opposite direction (reverse transfer), thereby transporting from the second release film 22 The first release film is removed from the optical film 1 and the first optical film 1 from which the second release film is peeled off is conveyed to the lower portion of the lower surface of the pressing roller 3〇5 by the tip end thereof. Display unit W surface. In this case, peeling is performed in a state where a tension of 150 N/m or more and 1〇〇〇N/m or less is applied to the second release film, and/or the second release film is removed from the second optical film. After that, the time until the pressing roller moves vertically downward to press the optical film toward the optical display single image το W surface and is pressed against the predetermined pressure is within 3 seconds, and can be applied to the first optical film and the optical display unit. Fit accuracy. When the tension is less than 150 N/m, the feeding position of the first optical film is unstable, and if it is more than 1 〇〇〇 N/m, the second release film may be stretched and broken, or the optical characteristics may be changed. Further, if the time until the pressing is longer than 3 seconds, the end portion of the first optical film peeled off from the second release film may be bent and broken or bubbles may be generated. The bonding mechanism is composed of a pressing roller 3〇5 and a guide roller 3051 disposed opposite thereto. The guide roller is constituted by a rubber wheel driven by a motor, and is vertically equipped with a pressing roller 305 which is formed by a motor-driven metal roller 136640.doc-63-200941049 directly above and below, when the optical display unit w is When fed to the bonding position, the pressing roller 305 is raised to a position higher than its upper surface to open the light interval. Further, the guide roller 3051 and the pressing roller 305 may both be rubber rollers or both. The optical display unit W is stored in advance after being washed. The optical display unit W is disposed in the transport mechanism by the adsorption transport mechanism 3〇6. This control is also performed by the control of the first control unit 307. (Second Manufacturing Unit) In the respective steps of the second manufacturing unit, the second installation mechanism 4〇1, the second conveyance mechanism 402, the third release film removal mechanism, the second inspection mechanism 4〇3, and the fourth release unit The configuration of the film bonding mechanism and the second cutting mechanism 404 is the same as the mechanism corresponding to the first manufacturing unit, and thus the description thereof is omitted. The optical display unit manufactured by the first manufacturing unit is transported to the second manufacturing unit. During the transfer or in the second manufacturing unit, the optical display unit ... is inverted up and down. The up-and-down reversing mechanism (not shown) is configured such that the optical display unit W1 & is lifted from the upper surface by the suction mechanism; the optical display unit W1 is lifted upside down and then placed on the transport mechanism again. This control utilizes the function of the second control unit 407. Further, as another embodiment, a configuration in which the up-and-down inversion processing is not performed may be employed. In this case, the second manufacturing unit is configured to treat each step of the second sheet product η in an inverted state (the release film is the upper surface) from the lower side of the optical display unit. The second optical film is bonded. Further, when the second optical film is to be bonded, it is 90 with the above-mentioned β-th film. In the relationship (the relationship of the orthogonal polarization), the optical display unit W1 is rotated by 90. The second optical film is bonded to the back. The first control unit 307 and the second control unit 407 perform control so that the above-described mechanisms of the respective steps 136640.doc 200941049 are linked. Each operation sequence is calculated by arranging the sensor at a predetermined position or by using a rotating member of the rotary encoder material conveying mechanism. The i-th and second control mechanisms can be realized by a synergistic action between a software program and a hardware resource such as a CPU (Central Processing Unit) and a memory. In this case, The program software, processing order, and various settings (4) are stored in the memory. Further, the first and second control mechanisms 3〇7 and 4〇7 may be constituted by a dedicated circuit or a finder. In the above embodiment, the sheet product including the part is attached to the temporary board unit and collected. However, it can also be attached to a belt-shaped separation membrane for coiling and recycling. The 瑕疵 inspection can be performed by a known inspection method. As the sputum inspection method, for example, an automatic inspection device and a visual inspection by an examiner can be cited. The automatic inspection device is a device for automatically inspecting a flaw (also referred to as a defect) of a sheet product, which irradiates light and acquires a reflected light image of the irradiated light via an image sensor of a line sensor or a two-dimensional τν camera or The transmitted light image is detected based on the acquired image data. Further, an image is obtained by inserting an inspection polarizing film into the optical path between the light source and the imaging unit. In general, the polarization axis (for example, the polarization absorption axis) of the polarizing film for inspection is arranged to be orthogonal to the polarization axis (for example, the polarization absorption axis) of the polarizing plate to be inspected (orthogonal polarization is configured to be positive If the eccentricity is not present, the image of the whole black is input from the camera. If 瑕疵' exists, the 瑕疵 part is not black (identified as a bright spot). Therefore, by setting the appropriate threshold, the 瑕疵 can be detected. In the above-mentioned bright spot detection, the surface is attached with 136640.d, •65-200941049, and the internal foreign matter is detected as a bright spot. In addition to the bright spot detection, the object is also photographed by using a CCD camera. A method of detecting a foreign matter by transmitting a light image and performing image analysis, and a method of detecting a foreign matter adhering to the surface by capturing a reflected light image of the object by a CCD camera and performing image analysis. [Examples] Hereinafter, the present invention will be described by way of examples, but the present invention is not limited by the examples shown below. Further, the following examples, reference examples, and comparisons The evaluation was carried out by the following method. [Measurement Method] (Peel Strength) A sample having a strip shape cut into a width of 15 Å in the width (TD) direction of 15 Å, and a polyester film and polarized light were placed on the sample. The component is peeled off from the beginning. It is made of double-sided tape (made by Nitto Denko,

No. 500) The sample was attached to a glass plate, and the first portion was placed on a variable angle peeling tester (manufactured by Asahi Seiko Co., Ltd.) at a peeling angle of 90. The peeling strength (ΝΛ5 faces) between the polarizing element and the polyester film was measured under the conditions of the peeling speed of /min. Further, the measurement was carried out in an environment where the temperature was 2 generations. (Appearance inspection: crack defect) Cut the polarizing plate into a rectangle of 2 mm in the direction of TD direction 500 mm x MD, and use a commercially available broken polarizing plate (manufactured by Nitto Denko, trade name "(4) 142·") and transmission. In the manner of orthogonal axes, two calenders were stacked on a fluorescent lamp with a brightness of W_Candela/m2, and the number of leaks (fractured 136640.doc -66 - 200941049 point defects) was visually counted. (The amount of curling of the polarizing plate) A sample cut into an A4 size (270 mm in the TD direction and 297 mm in the MD direction) was used. As a measurement environment, the temperature was 23 Torr and the humidity was 55% RH. First, let the sample rest on the water platform for about 1 second to confirm the direction of the bend. After confirming the bending direction, it was allowed to stand for 10 minutes to make the sample concave (curved into a cup shape from the side). Then, use a stainless steel ruler (JIS丨 grade),

The south degree from the surface of the stage on which the film was placed to the upper end of the curved sample was visually measured. (Tensile elastic modulus of film) A strip-shaped sample piece having a width of 1 mm in the measurement direction (TD4MD) and having a length of a filling blade was cut. In other words, when measuring the elastic modulus in the MD direction, the width in the TD direction is 1 mm, and the length in the MD direction is, for example, 1 〇〇 sample piece, and when the elastic modulus in the TD direction is measured, the cutting is performed. The width in the MD direction is 1 〇 mm, and the length in the 1 〇 direction is, for example, 100 sample pieces. The sample was subjected to a tensile test at a temperature of 25 in a temperature environment using a tensile tester (Tensilon) at a stretching speed of 50 mm/mjn and a distance between the chucks of 10 mm. The tangential line of the ss (strain_strength, strain intensity) curve obtained by the tensile test is tangent, and the intensity (tensile strength) at which the extension line of the tangential line reaches an elongation of 1% is used, and the strength is used. The value is divided by the measured cross-sectional area of the sample piece (thickness X sample width (10 mm)), and the value is taken as the tensile elastic modulus (in general, sometimes referred to as Jane's = 136640.doc) 67- 200941049 [Formation of Easy Adhesive Layer on Polyester Film] (Manufacturing Example 1) Biaxially-stretched polyethylene terephthalate film having a thickness of 38 μm (Mitsubishi Chemical Polyester Film Τ-100) After the corona treatment, a polyester water-dispersed urethane varnish adhesive (manufactured by Daiichi Kogyo Co., Ltd., trade name "Superflex SF210") was applied at 150 using a coating tester equipped with a gravure roll of mesh #200. It was dried at ° C for 1 minute to form an easy-adhesion layer having a thickness of 0.3 μm on the polyethylene terephthalate film.

(Production Example 2) Relative to a polyethylene glycol-based resin having an ethyl acetonitrile group (average polymerization shoulder is 1200, degree of 4 degree is 98.5 mol%, and degree of modification of the brewing base is 5 mol%) 100 parts by weight, 3 parts by weight of the ten-series cross-linking agent (Japanese catalyst collection, trade name "purchased 00"), dissolved in pure water at a temperature of 3 〇t, to prepare a solid content The concentrated solution is ~ knife, and the elongation is 3.7% by weight of the aqueous solution. Using a pair of pants (#20), the aqueous solution was coated with A, ... N / night C cloth was subjected to corona treatment in the same manner as the above-mentioned production example, and biaxially extended polyparaphenylene was used.

On the B-S film, it was dried at 13 ° C for 5 minutes to form an easy-adhesion layer having a thickness of 〇 3 (four). [Production of polarizing element] (Production Example 3) The degree of polymerization was 2,700, and the thickness was not affected by the peripheral speed. The surface of the agricultural glycerol film was stretched and conveyed while being dyed with polyethylene. First, one side == water is immersed for 1 minute to swell, the side is extended to 12 times in the direction of transport, / / N surface concentration is 0.03 wt%, and the collision is followed by 3 吖 potassium iodide X is 0.3 weight % of the aqueous solution was immersed in 136640.doc -68 * 200941049 and dyed it, extending along the direction of the transport, with a film that was completely unextended (the original length) as a reference to extend to 3 times. Then, one side at 6 〇 <t) The aqueous solution having a boric acid concentration of 4% by weight and a potassium iodide concentration of 5% by weight was immersed for 3 sec., and stretched to 6 times in the transport direction with respect to the original length. Then, the obtained stretched film was obtained. Drying at 70 t for 2 minutes, thereby obtaining a polarizing element. Further, the thickness of the polarizing element was 3 Å, and the water content was μ.3 % by weight. [Preparation of an adhesive] (Production Example 4) Relative to having a acetonitrile A thiol-based polyvinyl alcohol-based resin (average degree of polymerization: 1200, degree of saponification of 98.5 mol%, degree of modification of acetamidine group of 5 mol%) 100 parts by weight, 50 parts by weight of methylol melamine Dissolved in pure water at a temperature of 3〇t: to prepare a solid concentration 3 7 wt% water/glutle solution. An aqueous solution containing a positively charged alumina colloid (having an average particle diameter of 15 nm) at a solid concentration of 1% by weight is added to 100 parts by weight of the S-hai solution. An aqueous solution of a metal colloid-containing adhesive is prepared. The viscosity of the adhesive solution is 9.6 mPa·s, the pH is in the range of 4 to 4.5, and the amount of the alumina colloid is compared with the weight of the polyvinyl alcohol resin. Further, the average particle diameter of the oxidized gel was measured by a dynamic light scattering method (optical correlation method) using a particle size distribution meter (manufactured by Nippon Machine Co., Ltd., product name "Nanotrac UAP150"). (Production Example 5) An aqueous solution of a metal colloid-free adhesive was prepared in the same manner as in the above Production Example 4, except that 18 parts by weight of pure water was added instead of the alumina colloidal aqueous solution 丨 8 parts by weight of 136640.doc • 69-200941049. . [Production of Transparent Protective Film] (Production Example 6) The same as Example 1 in the specification of JP-A-2000-23016, the obtained decyl methacrylate (MMA) and 2-(hydroxyl group) were obtained. The (mercapto) acrylic resin particles of a lactone ring structure obtained by subjecting a copolymer of methyl acrylate (MHMA) to cyclization condensation. The pellet was dissolved in mercaptoethyl ketone, and a film was formed by a solution casting method. At 1〇〇. (: The film was uniaxially stretched 1.5 times in a longitudinal direction at a speed of 1 m/min to obtain an acrylic resin film containing a lactone ring having a thickness of 30 μm. [Production of Polarizing Plate] (Example 1) The adhesive layer of the production example 4 was applied to the easy-adhesion layer forming surface of the polyester film having the easy-to-attach layer obtained in Production Example 1 so that the thickness of the adhesive layer after drying became 80 nm. The resultant was bonded to both main surfaces of the polarizing element obtained in Production Example 3 using a roller press, and dried at 70 ° C for 6 minutes to prepare a polarizing plate. (Example) In the above Example 1 A polarizing plate was produced in the same manner as in Example 1 except that the polyester film obtained in Production Example 2 was used instead of the polyester film obtained in Production Example 1. (Reference Example 1) In the above Example 1 A polarizing plate was produced in the same manner as in Example 1 except that the adhesive of Production Example 5 was used instead of the adhesive of Example 4 of 136640.doc-70·200941049. (Reference Example 2) In the above Example 2 In addition to using the adhesive of Production Example 5 instead of the adhesive of Production Example 4, 2 A polarizing plate was produced in the same manner. (Comparative Example 1) In the above Example 1, except that a polyester film which did not form an easy-adhesion layer was used instead of the polyester film obtained in Production Example 1, A polarizing plate was produced in the same manner as in Comparative Example 1. In the same manner as in Comparative Example 1, except that the adhesive of Production Example 5 was used instead of the adhesive of Production Example 4, polarized light was produced in the same manner as in Comparative Example 1. The composition of the polarizing plate obtained in the above examples, the reference examples and the comparative examples, the peel strength of the polyester film and the polarizing element, and the results of the appearance (crack) inspection are shown in Table 1. [Table 1] Metallic colloidal peel strength (N/15 mm) of the easy-adhesive layer of the adhesive layer (number/m2) Example 1 Polyurethane has a measurement limit or more 0 Reference Example 1 No measurement limit or more 25 Example 2 Polyethylene has a measurement limit or more. 0 Reference Example 2 No measurement limit or more 33 Comparative Example 1 No 0.5 1 Comparative Example 2 No 0.5 31 136640.doc -71 - 200941049 The polyester film has Examples 1 and 2 which are easy to laminate. Reference example, 2, and then force ' From the above results, it is clear that the polarizing plates of Examples 2 and 2 have excellent adhesion to the protective film and the protective film is less likely to be embossed or peeled off. 'Because the adhesive containing a metal colloid was used for laminating the polarizing element and the polyester film', compared with Reference Examples 1 and 2 using a metal colloid-free adhesive, cracks were less likely to occur and the appearance was good. Example 3) On both main surfaces of the polarizing element obtained in Production Example 3, the adhesive of the manufacturing example 4 'using a rolling machine' was applied so that the thickness of the adhesive layer after drying became 8 〇 nm. A biaxially stretched polyester film having an easy-to-attach layer obtained in Production Example 1 was attached to one main surface of the polarizing element, and a cellulose triacetate film was attached to the other main surface of the polarizing element (Kony KC4UY manufactured by Konica Minolta, at 70. (: drying for 6 minutes to make a polarizing plate. Further, the arrangement of the biaxially stretched polyester film having an easy-adhesion layer is the same as in the first embodiment, so that the easy-adhesion layer forming surface of the polyester film is opposite to the polarizing element. The method was laminated. (Examples 4 to 10) In addition to the film shown in Table 2, instead of the cellulose triacetate film of Example 3 (KC4UY manufactured by Konica Minolta Co., Ltd.), 3 A polarizing plate was produced in the same manner. (Example 11) An easy-adhesion layer forming surface of a polyester film having an easy-to-attach layer obtained in Production Example 1 was used so that the thickness of the adhesive layer after drying became 8 〇 nm. 136640.doc -72- 200941049 The adhesive of the coating production example 4 was applied, and the obtained one was bonded to the main surface of one of the polarizing elements obtained in Production Example 3 using a roller press. After drying for 6 knives, a polarizing plate in a state in which a transparent film is not laminated on the other main surface of the polarizing element is prepared. The transparent film used in the polarizing plates of Examples 1, 3 to η and the elastic mode of each transparent film are used. The measurement results of the number and the curl of the polarizing plate are shown in Table 2. [Table 2] Ο ❷ 实Example 1 Example 3 Example 4 Example 5 Example 6 Example 7 Example 8 Example 9 Example 10 Example 构成 Composition of polarizing plate Transparent qi number (MPa) Type (grade) Extended polyphenylene Ethylene Formate (Τ-100, manufactured by Mitsubishi Chemical Gambling Film) Cellulose triacetate (KC4UY manufactured by Konica Minolta) Oryzanol triacetate (TD-80UL manufactured by Fujifilm) Cellulose triacetate (Ke NEW N-TAC manufactured by Nika Minolta) V-TAC triacetate (V-TAC manufactured by Fujifilm) Norbornene (Zeonor film manufactured by Optronics) Norbornene (Arton film manufactured by JSR) Double-sleeve Polypropylene (Torayfan, manufactured by Toray) Acrylic (Production Example 6) Thickness (μιη) 38 3,400

TD crimp amount (mm) 3,900 40 80 40 80 70 50 20 30 30 2,500 2,000 tube shape 150,000 1,800 2,000 1,200 1,000 1,900 1,500 20,000 2,000 1,800 2,000 1,200 1,000 3,400 1,500 +TD60 +TD30 +MD45 +TD25 +TD55 Tube + TD30 cylindrical shape 136640.doc -73- 200941049 In Table 2, the symbol "+" of the curl amount indicates that the film is curled so that the surface on which the biaxially stretched poly film is laminated, and the symbol "-" indicates that the film is laminated. The surface of the biaxially stretched polyester film is curled by the outer side. Further, MD and TD indicate curling in the MD direction and the TD direction, respectively. In the polarizing plate of the third embodiment, the film is curled into a cylindrical shape in the MD direction so that the surface on which the biaxially stretched polyester film is laminated is formed inside, so that the amount of curl cannot be measured. Further, the diameter of the cylinder was visually measured using a stainless steel ruler (JIS class 1), and it was 60 mm. Further, the polarizing plate of Example 9 was similarly crimped into a cylindrical shape having a diameter of 40 mm. In the polarizing plate of the eleventh embodiment in which the transparent film is laminated on the main surface of one of the polarizing plates, the film is rolled into a cylindrical shape in the TD direction so that the surface on which the biaxially stretched polyester film is laminated becomes the outer side. The diameter of the cylinder was measured in the same manner as in the polarizing plate of Example 3, and as a result, it was 38 mm. As is clear from Table 2, the polarizing plate of Example 1 which uses the same polyester film on both sides in accordance with the configuration of the drawing i(a) of the present application does not cause curling, and is opposite to FIG. 1(b). The polarizing plates of Examples 3 to 11 which conformed to the constitution of (c) produced curling. The larger the difference between the polyester film laminated on one main surface of the polarizing element and the elastic modulus of the transparent film laminated on the other main surface, the larger the amount of curling is, the inferred curl of the polarizing plate It is caused by the difference in the modulus of elasticity of the film laminated on the polarizing plate. Thus, it is difficult to perform a single-piece operation on the polarizing plate in the state where the curl is generated. However, by applying the manufacturing method using the continuous method of the present invention, the image display device can be manufactured regardless of whether or not curling occurs. BRIEF DESCRIPTION OF THE DRAWINGS 136640.doc • 74- 200941049 Figs. 1(a) to (c) are plan views of the present invention. Figure 2 shows the previous luminosity diagram. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE PREFERRED EMBODIMENT OF THE INVENTION FIG. 3 is a flow chart showing an example of a method of manufacturing a flow image display device. Fig. 4 is a flow chart showing an example of a method of manufacturing the image display device of the present invention by $d, u- θ < Fig. 5 is a view for explaining an example of a configuration of a manufacturing system of an image display device. Fig. 5B is a view for explaining an example of the configuration of the manufacturing system of the image display device. [Description of main component symbols] 1 First sheet product 2 Second sheet product 11 First optical film 12 First release film 14 First adhesive layer 21 Second optical film 22 Second release film 24 Second adhesion Agent layer A Optical display unit E Polyester film G Adhesive layer 136640.doc -75 200941049 Η Easy adhesion layer 偏 Polarizing element 透明 Transparent film W Optical display unit 136640.doc -76

Claims (1)

200941049 X. Patent application scope: 1. A polarizing plate which is formed with at least one polyester film (E) and a polarizing element (p) formed on at least one main surface with an easy adhesion layer (H). The easy-to-layer layer forming surface of the vinegar film is laminated on the surface of the polarizing element via the adhesive layer (G). * 2. The polarizing plate of claim 1, wherein the adhesive layer (G) is formed of an adhesive agent. The adhesive comprises a polyvinyl alcohol resin, a crosslinking agent, and an average particle diameter of 1 to 100 nm. The metal compound colloidal resin is a resin solution solution, and the metal compound gum system is formulated in a ratio of 200 parts by weight or less based on 100 parts by weight of the polyvinyl alcohol resin. 3. The polarizing plate of claim 1, wherein the easy-adhesion layer (H) contains a polyvinyl alcohol-based derivative or a polyamine phthalate compound. 4. The polarizing plate of claim 1, wherein the easy-to-adhere layer (H) is formed on at least one of the main surfaces by laminating the adhesive layer (G) on one of the main surfaces of the polarizing element (p). The polyester film (E); a film is not laminated on the other main surface of the above polarizing element (P). An image display device having the polarizing plate of claim 1. A method of manufacturing an image display device, which is an image display device having a polarizing plate according to any one of claims 1 to 4, and comprising: a reel material preparation step, prepared as in claims 1 to 4 The long strip of the polarizing plate of any one of the sheets is used as a reel material; the cutting step 'pulling the sheet product from the reel material, and cutting the polarizing plate into a predetermined size using a cutting mechanism; and a fitting step' After the cutting step, the polarizing plate is bonded to the optical display unit via the adhesive layer. 136640.doc