TWI261125B - Optical film having adhesive and image display apparatus - Google Patents

Abstract

An optical film having a pressure-sensitive adhesive layer on at least one surface thereof, characterized in that the pressure-sensitive adhesive layer has a Tg of -35 DEG C or lower. The above optical film with a pressure-sensitive adhesive exhibits such durability that the curvature thereof can be inhibited even when exposed to a low temperature circumstance lower than room temperature.

Description

1261125 IX. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to an adhesive optical film having an adhesive layer on at least one side of an optical film. Further, it relates to an image display device such as a liquid crystal display device using an adhesive optical film, an organic EL display device, or a PDP. The adhesive-attached optical film of the present invention is preferably a film containing a stretched film in terms of an optical film. Examples thereof include a polarizing plate, a phase difference plate, an optical compensation film, a 7 U-liter film, and the like. [Prior Art] The liquid crystal display device is used for an electronic computer, or for a clock, a television, a monitor, or the like. These products require various durability because they are used under various conditions in various environments. Further, in the liquid crystal display device, various optical films such as a polarizing plate and a phase difference plate are used. These optical films are used as an adhesive: in order to adhere to various optical members. Therefore, the durability of the optical film attached to the adhesive is also required. In order to improve the durability of the adhesive optical film, various evaluations have been made for the adhesive layer. H has proposed to increase the molecular weight of the base polymer used in the adhesive or the base polymer = temperature. Copolymerization, or a method of increasing the degree of crosslinking. It is recommended to use an acid-based adhesive in order to obtain excellent adhesion and transparency, etc. (see Patent Document υ. However, if durability is applied to the adhesive optical film by the above method (4), the adhesive is applied. The residual stress of the layer will be: 5!: As a result, this will affect the optical film, and warpage occurs in the optical film, and the display quality of the liquid crystal display device is known, which is a serious problem. 5 1261125 Patent Document 1: Special opening丨 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The use of the 'return' began to increase the use of TV and car, etc., in the adhesive film, in addition to the requirements of the high temperature and the door / dish back to the remaining pieces of durability, even if etc. It is also required to have durability under low temperature conditions. ❻ is 'adhesives used in acrylic adhesives...sub-films (for example, polarizing plates with adhesive layers), even if it can withstand the durability under high temperature and high temperature and high humidity conditions. But Temperature (23. ^ below the low temperature conditions, its durability is not sufficient, 婪 # right adhesive film optical film attached to the glass plate and other conditions exposed to low temperature conditions, will produce severe warping. The purpose of the invention is to provide an optical film with an adhesive, which can suppress the durability of the optical film even in a low temperature environment below room temperature. The purpose of the IA is to provide an optical moon using the adhesive. In the case of the singularity of the singularity of the singularity of the singularity of the singularity of the smear The adhesive film optical film is an adhesive layer in the early stage of the optical film; it is characterized in that the adhesive layer has a Tg 6 1261125 of -3 5 ° C or less. The general adhesive agent and the right official, IV T > r·^ y /, there are only to the following D. G. Temperature zone near Tg, Fen glass state and rubber skin can be the transition zone of this melon shape, if Tg becomes glassy...I adhesive agent The elastic modulus of possession will accompany this As a result, even if the dimensional change of the optical film is small, the dimensional change is not sufficiently satisfied, and severe warpage may occur. In other respects, the tweezing system in the low temperature region and the humidification state in the pass f test are used. Different warping, apricot and one,,,,, in a special film (especially stretch film) will appear in the direction of the 90 axis with the drawing axis significantly, if returned to room temperature (four) (four) u = to the original resentment' This is due to the fact that it is Q 〇 with the stretching axis of the optical film, especially the 疋 and the polarizing plate. The direction of the axis and the axis are large, and the internal force of the user is also 90 in the direction of the stretching axis. The reason for the disappearance of tortoises at room temperature shows that the warpage in the low temperature region obviously depends only on the thermal stress of the optical film. One is that in the present invention, the adhesive layer uses Tg as the hunger = force: the film is caused by the dimensional change of the member such as the optical film in the low temperature region. By this, it can provide a kind of not only in the high temperature area, two! The Tg of the adhesive optical fiber having a good durability in a low temperature region is preferably -4 (rc or less, more preferably _5 吖 or less. Also, if it is too low, it is high; w < under 1 1 g The durability under the crockery cylinder is low, so it is -12 (ΓΓη, more preferably -1 〇〇. (3 or more is preferred. The above adhesive optical film, the optical film is generated by thermal stress) Internal force (F) is defined as Tingsheng

F ^ β ΔΤ · Ε h 1261125 (where α is the thermal expansion coefficient of -60 to 23 °c, Z\T is the temperature difference when Z is 23 °C, E is the elastic modulus, and 1 is the width, h For thickness), the optical film has a stretched film at 9 对于 for the tensile axis. It is effective that the internal force (F) generated by the direction is 50 N or more. The optical film having an internal force (F) of 50 N or more and easy warpage at a low temperature is applicable to the adhesive optical film of the present invention. The optical film is preferably used in the adhesive optical film of the present invention in the case where the internal material is 70 N or more and even more than the surface. The optical film of the above-mentioned adhesive optical film can be suitably used for a polarizing plate or a phase difference plate. When a stretched film is used for the constituent elements of the polarizing plate and/or the phase difference plate, the tortuosity is likely to occur at a low temperature, and the adhesive optical film of the present invention can be suitably used. The present invention relates to an image display device for a film. L Beschwan type] ^: Ming's attached adhesive optical film to the single mask of the optical film: the two-layer layer is formed with _ hunger below, and the appropriate adhesion (4) can be used when the formation is broken. There are no special types: rubber adhesives, acrylic acid adhesives; adhesives; adhesives, aminocarboxylic acid (4) adhesives, B-bonds ^ ^ ^ ^ I, ^ ^ # ^ + Γ ^^ ^' Ιέ ^ #J ' Test y minus, primal adhesives, etc. Among these adhesives, it is preferred to have suitable wettability, ..., excellent transparency, and to exhibit adhesive properties of 嘁π human contact, and excellent in weather resistance and heat resistance of 1261125. The above-mentioned characteristic is obtained by using an acrylic polymer having an acrylic-based acrylic acid-based I-based agent as a main skeleton of a monomer unit of (A & acrylic acid sulphuric acid) as a base polymer. Further, (mercapto) acetoacetate means acrylonitrile and/or methacrylic acid alkyl vinegar, which has the same meaning as (meth) of the present invention. The (mercapto) alkyl acrylate constituting the main skeleton of the acrylic polymer may be a linear or branched alkyl vertice having an anomaly of 2 to 18. 1 is exemplified by ethyl (meth) acrylate, butyl (decyl) acrylate, 2-ethylhexyl (decyl) acrylate, isooctyl (meth) acrylate, isodecyl (meth) acrylate, (Meth)acrylic acid isocyanuric acid ester, (meth)acrylic acid, laurel, etc. In the case of alkyl (meth)acrylates, alkyl acrylates having a branched alkyl group are particularly preferred. For example, 2-ethylhexyl acrylate, isooctyl acrylate, isodecyl acrylate, isomyristyl acrylate or the like can be suitably used. In the uranium mercaptosilicate polymer, one or more types of comonomers can be introduced by copolymerization for the purpose of improving adhesion and heat resistance. Specific examples of such a comonomer include, for example, (mercapto)acrylic acid 2 to ethylidene ethyl ester, (meth)acrylic acid 2-hydroxypropyl ester, and (meth)acrylic acid 4-hydroxybutyl ester, ( Methyl)acrylic acid 6 - hexyl hexyl ester, (meth) acrylate 8 - octyl octyl ester, (meth) methacrylate 10 hydroxy hydroxy ester, (mercapto) acrylic acid 12 - hydroxy lauryl ester and (4 a hydroxyl group-containing monomer such as hydroxymethylcyclohexyl)methyl acrylate; (mercapto)acrylic acid, carboxyethyl (meth)acrylate, decylpentene acrylate, itaconine, maleic acid, a carboxyl group-containing monomer such as fumaric acid or crotonic acid; an acid anhydride group-containing monomer such as maleic acid needle or itaconic anhydride; propylene 9 1261125 acid caprolactone adduct, styrene sulfonic acid or allylic acid continued Acid, 2-(methyl) propylamine, 2-methylpropane sulphate, I, (mercapto) propyl amide with acesulfame, sulfopropyl (meth) acrylate, (曱a base group containing a benzoic acid naphthalenesulfonic acid or the like; a phosphoric acid group-containing monomer such as 2-hydroxyethyl propylene sulfonate phosphate. Further, the above-mentioned monomers are exemplified by (mercapto)acrylamide, N,N-dimethyl(decyl)propenylamine, N-butyl(decyl)acrylic acid amine, and n-thiol group (A&;)) (N-substituted) amide-based monomer; (meth)acrylic acid aminoethyl ester, (mercapto-based) a N-N-didecylaminoethyl acrylate, a (meth)acrylic acid, a tert-butylamino group, and the like. a nonyl (meth) acrylate (alcoholic acid) ethoxylated oxime monomer, N-methyl propyl oxime oxime Beryl imine, N-(indenyl)propenyl fluorenyl-6-oxyhexamethylene succinimide, N-(fluorenyl) acrylonitrile-octa-8-oxo octadecyl succinimide, n—Amber quinone imine monomer such as acrylonitrile. In addition, in the modification of the monomer, vinyl acetate, ethyl propionate, N-vinyl pyrrolidone, mercapto vinyl pyrrolidone, vinyl pyridine, vinyl ketone, vinyl pyridinium, ethylene can be used. Ethylene series such as azine, vinylpyrazine, vinylpyrrole, vinylidene, vinyl oxazole, ethylene morpholine, N-vinyl carboxylic acid decylamine, styrene, methyl styrene, N-ethylene caprolactam, etc. a cyanoacrylate monomer such as acrylonitrile or methacrylonitrile; an epoxy group-containing acrylic monomer such as (meth)propene:) glycidyl glycate; (fluorenyl) acrylic acid a glycol-based acrylate type such as polyethylene glycol ((mercapto)acrylic acid polypropylene glycol, (mercapto)acrylic acid methyl 10 1261125 ^ soil ethylene 3, (meth)acrylic acid methoxypolypropylene glycol, Shi Xi _ (tetrahydrofurfuryl acid dimethacrylate, fluoro (meth) acrylic acid brewing, ^ ~ acid ester or 2-methoxyethyl acrylate acrylate monomer, etc. ' # /寻Tanaka, based on the use of the liquid crystal element as an optical film, is resistant to the use of a hydroxyl-containing single. The monomer, the carboxyl group-containing monomer, etc., may become a reaction point with the crosslinking agent. The ratio of the comonomer in the whole body 1 is not particularly limited, and the average molecular weight of the acid polymer is It is not particularly limited, and it is preferably about 10,000 to 50,000. The above-mentioned acrylic acid polymer ί;:;: 制造 is manufactured by a known method, and can be suitably selected, for example, from a two-liquid polymerization method or a suspension polymerization method. Base polymerization method. It is known that an azo-based or a peroxide-based one can be used as the oxime agent. Further, in the above-mentioned production method, the solvent is used as the solvent of the anti-w compound. The concentration of ethylene-propylene material is usually about 20 to 80% by weight. Abens. The bath is rubber, isopropylene rubber, styrene-butadiene rubber: in the base polymer of rubber adhesive: such as natural isobutylene Rubber, styrene-different: raw rubber, polyethylene-butyl butyl rubber, etc. For the diethylene rubber and benzene polymer, for example, the basis of dimethyl polyfluorene adhesive can be used. Alkane, diphenyl polyfluorene 1261125 乂, etc., 6 hai and other base polymers _ + It is preferred to use a functional group such as a carboxyl group. The adhesive is preferably made up of a multi-functional adhesive composition containing the right six in the dispensing agent. Polyfunctional metal chelating agent. 1 Illustrative of the organic cross-linking agent and the cross-organic parent-linked agent, the epoxy car can be used for the outer ear, the isocyanate system, the 虱糸 Ψ θ, the imine cross-linking agent, and the peroxidation. Vehicles::, find. These cross-linking agents can be used in type I or = in the case of organic cross-linking agents H-, and 3. /, phthalate-based cross-linking agent is preferred. : genus ... is a multi-valent metal and has ... "growth. In the polyvalent metal original (four) / m fly coordination key puv'm can be cited A1, cm, Cu,

La, sn, T!, etc. The atoms of Ca, Mg, Mn, Y, Ce, Si·, Ba, Mo, etc., may be exemplified by the oxygen-covalent bond or the coordination bond of the organic compound in the Western Ancient Temple. Examples of the organic compound include a scorpion cheek compound and a carboxylic acid succinimide, and an alkyl ester, a sigma compound, an ether compound, a ketone compound, and the like. The basis of the lanthanoid polymer or the like is not particularly limited, and the ratio of the compound to the agent is > the amount of the cross-linking agent is based on the base polymer (the solid component is 1 weight to capture 15 weight = component). 001 to 20 parts by weight is better, and JW is better. In the adhesive, it is possible to add various additives in the range that does not deviate too much. This additive package... plasticizer, glass fiber h坷, enrichment filler, (4) from 1 Zhu, metal powder, other inorganic An absorbent such as a powder, a toner, a filler, an antioxidant, an ultraviolet ray k coupling agent, or the like. It is also a diffusing adhesive layer. 3 fine particles to make the light show the addition of Qi / square I,,, t ' with (4) coupling agent is appropriate, relative to the base polymerization 12 J261125

(solid component U ο·〇01~10 parts by weight, Shixi siu coupling agent (solid component) is more preferably in the amount of (4)...22 and 〇·0. 5~" ...special restrictions on the use of the prior art. The base triethoxy:: glyceryl propyl trimethoxy, 3-glycidyl C, 2 (34 V), 3' glycidyl propyl methoxy Ethoxy decane, hexanyloxycyclohexyl)ethyltrimethoxy sulphate, etc., containing epoxy group-containing lithium lithium 丄丨^^^^ylethyl)=:diaminopropyltrimethyl ——Amine-based sulphur-based base lanes, dimethyldimethoxycarbazide, 3-triethoxy methoxy coupling agent, benzylidene butylamine, propylamine, etc. Propyl trimethoxy money, 3-methyl propylene oxide, 3-Li-Ping "Xikeng Temple contains (meth) acrylic acid-based Shi Xizhuo coupling - /, phthalate propyl three Ethoxy decane coupling agent.疋3 has an isocyanate group. :: The optical film used in the adhesive film of the invention is not used. The 显示I special... The user who is in the formation of the display device, the type thereof is 疋. The optical film is preferably one suitable for a right stretch film such as a polarizing plate or a phase difference plate. The plate temple has the same as the board. The one used for the polarizing element is transparent on one side or both sides. There is no particular limitation on the side:: Various polarizing elements can be used. The core may, for example, be a polyethylene glycol film, a part of a methyl group:::: a film, a vinyl-acetic acid, an ethyl acetate component, a partial 4, a uniaxial, and a bismuth. The substance is treated as a second substance = a dehydration treatment of an alcohol or a dechlorination of a polyvinyl chloride to a ruthenium alignment film or the like. In the above-mentioned, the thickness of the polarizing element which is composed of a dichroic material such as iodine or the like is not particularly limited, and is generally... The temple polarizing element is made of a single-stretched polarizing element. The polyethylene glycol is impregnated in an aqueous solution of iodine, and the polyvinyl alcohol is ice-colored, and then stretched to a ratio of 々. It can also be seen that the length of _a + 3 jaws is 3 to 7 J. It contains boric acid or zinc sulfate, and can be impregnated in an aqueous solution such as potassium peroxide. In addition, the rzinc temple is also immersed in water to wash the water. If you will focus on dyeing before

Washing can be used to clean the surface of the polyvinyl alcohol-based film, and if the anti-moisture agent is washed, the vinyl alcohol film is swollen to the right. Stretching can be carried out after dyeing with iodine, and then entering the crucible, or stretching after dyeing, or stretching after stretching with enamel dyeing or stretching in a water bath. h The aqueous solution of the core (4) is used to form a transparent protective film which is disposed on the front or both sides of the polarizing element, and is transparent to the moon (4) strength, thermal stability, moisture resistance Excellent people such as sex and isotropic are preferred. For example, polyethylene terephthalate or poly(2,6-naphthalene diacetate)-polyethylene-based polymer, diethyl acetyl cellulose or triethyl cellulose 1 such as a cellulose-based polymer, an acrylic acid-based polymer such as polymethyl methacrylate, or a acetonitrile-styrene copolymer (AS resin), etc. Materials, polycarbonate polymers, and the like. 5 polyethylene welding, poly-K-propene, polyolefin with ring system or norbornene structure, ethylene-propylene-I Α welding, I-like poly-hydrocarbon polymer, vinyl chloride A phthalamide-based polymeric ether milled system of a polymer, a nylon or an aromatic polybenzate, a quinone imine polymer, a maple polymer, a poly ( sulfonate) polymer, a polythiobenzene polymer, or an ethylamine. a polymer, a polyalkenyl polymer, a 14 1261125 gas ethylene-antimony polymer, a vinyl butyral polymer, an aryl ester polymer, a 'formaldehyde polymer, a fluorene polymer, or the like The polymer blend or the like is also a polymer which can form the aforementioned transparent protective film. The transparent protective film is also formed in the form of a hardened layer of a thermosetting or ultraviolet curable resin such as yttrium acrylate, an amino phthalate type, an urethane urethane type, a emulsified ketone or an oxime ketone type. Further, a polymer film which is described in JP-A-2001-343529 (W001/37〇〇7), for example, a thermoplastic resin containing (A) a side chain having a substitution and/or an unsubstituted quinone group And a resin composition having a (B) side chain having a thermoplastic resin substituted and/or a non-substituted phenyl group and a nitro group. Specifically, the resin composition film may contain a copolymer of isobutylene and N-methylmaleimide and a copolymer of acrylonitrile-styrene. As the film, a film composed of a mixed extrusion of a resin composition or the like can be used. The thickness of the shy film can be appropriately determined, and it is generally about m based on the work J1 and film properties such as strength and usability. Especially 5~2(8) // m is preferred. It is better to keep the shame film as colorless as possible. Therefore, the phase difference in the film thickness direction expressed by Rth [(iix+ny)/2-nz] · :nZ plus film thickness direction, d-type film thickness) is -90 rrm to +75 nm. A protective film is preferred. If a protective film having a phase difference in the thickness direction of the film is used, coloring (optical coloring) of the polarizing plate due to the protective film can be roughly solved. The thickness direction phase difference (Rth) is more preferably ·8〇ηηΊ~ + 6〇ηηα, particularly preferably -70nm~ + 45nm〇15 1261125 In terms of protective film, 'cellulose based on polarization characteristics and durability of cellulose acetate The polymer is preferred. 』' Three cellulose membranes are suitable. And 'on both sides of the polarizing element: set two;;:: the base condition, the table can be used in the morning to use the same polymer to make up * use different polymer materials to form, can also, based on, know, M y / mouth 豕 partial 7 ^ 凡 凡 凡 凡 凡 凡 凡 凡 凡 凡 凡 凡 凡 凡 凡 凡 凡 凡 凡 凡 凡Only 田 田 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Wait. " The surface of the transparent protective film which is not attached to the polarizing element can be subjected to hard or anti-reflection treatment, treatment based on adhesion prevention, diffusion or anti-glare: The hard coating treatment is based on the purpose of preventing the surface of the polarizing plate from being damaged. For example, a hardened film having good curing and smoothness properties obtained by a suitable ultraviolet curable resin such as an acrylic acid or a shi shi ming system can be added to the surface of the transparent protective enamel. The anti-reflection treatment is used to prevent external reflection on the surface of the polarizing plate, which can be achieved by a conventional method of forming an anti-reflection film. Further, the anti-adhesion treatment is based on the purpose of preventing the disc basin # 彳 彳 〃 〃 〃 〃 〃 邻接 邻接 构件 构件 构件 构件 构件 构件 构件 构件 构件 构件 构件 。 。 。 。 The anti-glare treatment is performed on the basis of the purpose of preventing external light from being reflected on the surface of the polarizing plate and obstructing the reading of the polarized surface. For example, it may be transparent by a sandblasting method, a roughening method such as a flower processing method, or a method of blending transparent fine particles. The surface of the protective film is formed by imparting a fine concavo-convex structure. The fine particles forming the fine concavo-convex structure of the surface may be, for example, an average particle #〇·5~5〇师之之" oxidized alumina, titanium oxide, cerium oxide, tin oxide, indium oxide, oxidized ore, oxidized material may be electrically conductive Transparent fine particles such as organic fine particles, 16 1261125 parent-linked or uncrosslinked polymer, and other organic fine particles (including beads). When the surface fine concavo-convex structure is formed, the amount of the fine particles is preferably from 2 to 50 parts by weight, and more preferably from 5 to 25 parts by weight, per part by weight of the transparent resin crucible having a fine uneven structure. The anti-glare layer can also serve as a diffusion layer (viewing angle expansion function) for diffusing the light from the polarizing plate to enlarge the viewing angle or the like. Further, the antireflection layer, the anti-adhesion layer, the diffusion layer or the anti-glare layer may be directly provided on the transparent protective film, or may be separately provided in the form of an optical layer from the transparent protective film. Further, examples of the optical film include a reflection plate or a semi-transmissive plate, a phase difference plate (including a wave plate of 1 /2 or 1/4 wavelength), a viewing angle compensation film, and a brightness enhancement film equal to formation of a liquid crystal display device or the like. Optical layer. These may be used alone as an optical film, or may be laminated to the above-mentioned polarizing plate in actual use. In particular, a reflective polarizing plate or a semi-transmissive polarizing plate formed by further laminating a reflecting plate or a semi-transmissive reflecting plate on a polarizing plate, and an elliptically polarizing plate formed by further laminating a phase difference plate on the polarizing plate are preferable. Or a circular polarizing plate, a wide viewing angle polarizing plate formed by a viewing angle compensation film is further laminated on the polarizing plate, or a polarizing plate formed by a brightness increasing film is further laminated on the polarizing plate. The reflective polarizing plate is provided with a reflective layer on the polarizing plate to form a liquid crystal display device of a type that reflects incident light from the viewing side (display side), and can omit a light source such as a built-in backlight. It is an advantage to make the liquid crystal display device defective. The formation of the reflective polarizing plate can be carried out by a suitable method such as a transparent protective layer or the like, and a reflective layer made of a metal or a groove is attached to the front surface of the front plate. Specific examples of the reflective polarizing plate include, for example, a foil or a vapor-deposited film made of aluminum or the like and a reflective metal layer on a single surface of the transparent protective film subjected to the matte treatment to form a reflective layer. Alternatively, it is described that the transparent protective film contains fine particles having a fine concavo-convex structure on the surface, and a reflective layer having a fine concavo-convex structure on the surface. In the above-mentioned fine concavo-convex structure, the long-reflecting layer can irregularly reflect the incident light to diffuse, preventing directionality or glare-------------------------------- The advantages are. Further, the transparent protective film containing the 3U particles allows the incident light and the reflected light to diffuse as it passes, thereby suppressing the unevenness of light and dark, which is also an advantage. The formation of the fine concavo-convex structure reflecting layer reflecting the fine concavo-convex structure on the surface of the transparent protective film 1 is directly attached to the surface of the transparent protective layer by, for example, a vacuum distillation method, an ion implantation method, a subtractive plating method, or an electric ore method. get on. The reflecting plate may be used as a reflecting sheet or the like on a suitable film based on the transparent film, except that it is directly provided on the opposite transparent (tetra) film. Further, the 'reflection layer is usually made of a metal, and the reflection surface is covered with a transparent protective film or a polarizing plate, and the like, and the viewpoint of preventing oxidation from being reduced in reflectance and maintaining the initial reflectance for a long period of time, and avoiding the need The idea of attaching a protective layer is a better approach. Further, the half-f transparent type may be obtained by providing a semi-transmissive reflective layer such as a semi-lens that reflects the light and transmits the light through the reflective layer. The semi-transmissive polarizing plate is usually disposed on the inner side of the liquid crystal element, and can be used to form a liquid crystal display of the following type, and the Ganda 1261125 is used in a relatively bright environment to make it from the visual side ( The incident light on the display side is reflected to display an image, and in a relatively dark environment, the image is displayed using a built-in light source such as a backlight built in the inside of the semi-transmissive polarizing plate. In other words, the semi-transmissive polarizing plate is useful for forming a liquid crystal display device of a type that uses a built-in light source in a relatively dark environment in which an energy source for a backlight or the like can be saved in a bright environment. Hereinafter, an elliptical polarizing plate or a circularly polarizing plate comprising a phase difference plate further laminated on a polarizing plate will be described. A phase difference plate or the like is used when the linearly polarized light is changed into elliptically polarized light or circularly polarized light or from elliptically polarized or circularly polarized light to linearly polarized light, or the direction of polarization of the linearly polarized light is changed. In particular, a 1/4 wavelength plate (also called a λ/4 plate) can be used to convert a linear polarized light into a circularly polarized light or a circularly polarized light into a linearly polarized phase plate. A 1/2 wavelength plate (also known as a λ/2 plate) is typically used to change the direction of polarization of linearly polarized light. The circularly polarizing plate can compensate (prevent) the coloring (blue or yellow) produced by the birefringence of the super-twisted nematic (STN) type liquid crystal display & liquid crystal layer, and can be effectively used for black and white display without the aforementioned coloring The occasion, etc. Further, the three-dimensional refractive index is controlled by the controller, and it is preferable to compensate (prevent) the coloring which occurs when viewing the face of the liquid crystal display device from the oblique direction. The circular polarizing plate can be used for >text; for example, when the image is a color-displayed reflective liquid crystal display device, the color of the gallium is adjusted, and the reflection is also prevented. Examples of the phase difference plate include a birefringent film obtained by subjecting a polymer material to uniaxial or biaxial stretching treatment; an alignment film of a liquid crystal polymer; and a liquid crystal polymer alignment layer supported by / Wait. The thickness of the phase difference plate is 20 to 150 "m", but is not limited thereto. 19 1261125 The polymer material 'is, for example, polyvinyl alcohol, vinyl alcohol butyric acid, polymethyl group B (4), polyacrylic acid via vinegar, reethyl human cellulose, propyl cellulose, methyl cellulose 'poly carbon (four), poly (four), poly maple, polyethylene terephthalate _, Poly 2,6-naphthalene diacetate glycol vinegar, poly-crushing mill, polyphenylene sulfide, polybenzophenone, polypropyl propyl maple, polyethylene glycol, polydecylamine, polyacid imide, poly-sparing hydrocarbon, poly A chloroacetic acid, a cellulose-based polymer, or a binary or ternary copolymer of these, a graft copolymer, or the like. These polymeric materials are oriented by stretching (stretching) The liquid crystal polymer may, for example, be a mound-like linear atomic group that imparts liquid crystal alignment properties (liquid day and day: mes. (4) a primary bond of a polymer or a main chain type or a side chain type Various liquid crystal polymers. Specific examples of the main-bond liquid crystal polymer include a spacer bond for imparting buckling property: a liquid-based structure For example, a nematic-aligned polyromatic liquid crystal polymer, a dish-type polymer, a cholesteric polymer, etc., as a specific example of a side chain-form, may be exemplified by polyfluorene, polyacrylic acid, and poly A: Acidic or polymalonic acid vinegar is the main chain skeleton, and the work is a side chain; ^The spacer formed by the atomic group has a cyclic compound unit which is substituted in the nematic alignment, etc. The polymer can be obtained by rubbing the polyimide or the polyethylene glycol formed on the glass. After the rubbing treatment, or performing the oxidized stone, the liquid crystal polymer, the surface, the night... For the treatment of the finished product, the liquid is extended to heat treatment. The folding:::2: can be used for feeding the color and the angle of view caused by, for example, various wavelength plates or liquid crystal layers. The appropriate phase difference of the purpose may be an optical characteristic in which at least two kinds of two: 1261125 are laminated to control a phase difference, etc. 'And' the above-mentioned elliptically polarizing plate and reflective elliptically polarizing plate are polarizing plates or reflective types. The polarizing plate and the phase difference plate are combined in an appropriate combination The elliptically polarized plate or the like can be formed by laminating a (reflective) polarizing plate, a phase difference plate, and a port pattern in a manufacturing process equal to that of the liquid crystal display device. However, as described above, the optical film obtained by the elliptically polarizing plate is excellent in quality stability and laminating workability, and the manufacturing efficiency of the liquid crystal display device or the like can be improved, which is an advantage. In order to make the surface of the liquid crystal display device look at the direction of the slanting direction from the slanting direction of the slanting surface, the film can be relatively clear: the film which expands the viewing angle. As such a viewing angle, the phase difference is compensated: For example, a retardation film such as a phase difference plate or a liquid crystal polymer, or a phase difference plate supporting a liquid crystal polymer or the like on a soil-permeable material, is uniaxially pulled in a plane direction thereof: a polymer film' On the other hand, as the phase of the viewing angle compensation film: the folding is performed by applying the uniaxial stretching in the direction of the biaxial drawing in the plane direction and applying the stretching in the thickness direction. Refractive polymer , Or to the polymer e.g. :: = :: τ. As the oblique alignment film, the polymer can be stretched by the action of the contraction force::, generated, collected, or tilted the liquid crystal polymer _ "Processor" can be used in combination with the front phase difference plate The object 'sense is based on the phase difference caused by the liquid crystal element: the 21 21261125 coloring caused by the change of the appropriate viewing angle, or the purpose of expanding the visual angle of the visual field, etc. Visual field of view consideration, preferably can be used to support the optical anisotropic layer with triethyl cellulose fiber (by liquid crystal poly (4)

An optical compensation phase difference plate formed by an alignment layer, in particular, a tilt alignment layer of a disk type liquid crystal acoustic object. A polarizing plate in which a polarizing plate and a brightness enhancement film are bonded together is usually used by being placed inside the liquid crystal element. The brightness-increasing film exhibits a characteristic of being able to reflect the linearly polarized light of the polarization axis or the circularly polarized light of a predetermined direction by allowing the natural light to be incident due to the backlight of the liquid crystal display device or the like, or the reflection from the inner side. Therefore, the polarizing plate which is laminated by the brightness enhancement film and the polarizing plate can cause the light from the light source such as the backlight to be incident to obtain the transmitted light of the predetermined polarization state, and does not reflect the light other than the predetermined polarization state. . The A reflected by the brightness enhancement film surface is reversely incident on the brightness enhancement film via a reflection layer or the like provided on the rear side thereof, so that -(4)=all light in a predetermined polarization state is penetrated to increase the π. The light of the film is lifted by 2 degrees, and the polarized light that is not easily absorbed by the polarizing film is supplied to increase the brightness of the recording material such as the liquid crystal image display. In other words, when the brightness enhancement film is used and the light is incident through the polarizing 内侧 from the inside of the liquid crystal element, such as a backlight, the light whose polarization direction does not coincide with the polarization axis of the polarizing film is mostly absorbed by the polarizing film, and is not Pass through the polarizing film. That is, although the characteristics of the polarizing film to be used differ depending on the characteristics of the polarizing film to be used, the substantially erected light is absorbed by the polarizing film, and this portion causes the usable light of the liquid crystal display device or the like to be reduced. The brightness enhancement film 'the light in the polarization direction that is absorbed by the polarizing film is not incident on the polarizing film, but is incident on the brightness enhancement film 22 1261125, and then reflected through the reflection layer provided on the rear side thereof to the brightness enhancement film. In this way, the brightness enhancement film is supplied to the polarizing film only by the polarized light that can be reflected and reversed in the polarizing direction of the polarizing plate, so that light such as a backlight can be effectively used in the liquid crystal display device. The image shows that the face can be bright. A diffusion plate may be provided between the 7C degree lifting film and the reflective layer or the like. The light system in which the polarization state of the film reflection is reflected by the party is directed toward the reflection layer or the like, and the diffused light is uniformly diffused to the diffused plate to eliminate the polarized light to a non-polarized state. That is, the light in the natural light state is set toward the reflective layer or the like, is reflected by the reflective layer, and is incident on the redundancy lifting film by the diffusion plate, and is thus repeated. By using a diffusion plate for returning the polarized light to the original natural light between the brightness enhancement film and the reflective layer 5, the brightness of the display screen can be maintained, and the unevenness of the brightness of the display screen can be reduced. Uniform bright face. It is believed that by providing a diffuser, the initial incident light, along with the appropriate number of repetitions of the reflection, provides a uniform, bright display surface, in conjunction with the action of the diffuser. As the brightness enhancement film, for example, a multilayer laminate of a dielectric film or a multilayer laminate having a refractive index anisotropy can be suitably used, and other light can be displayed by linear polarization of a predetermined polarization axis. a characteristic of reflection; an alignment film supporting a sterol type liquid crystal polymer on a film substrate or a liquid crystal layer thereof, which exhibits a polarization of one of left-handed or right-handed light and allows other light to pass therethrough Characteristics, etc. Therefore, the brightness enhancement film of the type which allows the linear polarization of the predetermined polarization axis to penetrate, by directing the transmitted light directly to the polarization axis and incident on the polarized light 23 1261125 plate can suppress one side of absorption by the polarizing plate, The cholesteric liquid crystal layer lifting film can also make the light receiving loss considerations, and it is preferable to use the polarizing plate to pass the polarizing plate. Also, by using a linear polarized light. Knowing the loss, but can penetrate efficiently. In addition, the type of light that penetrates the circularly polarized light is incident on the polarizing film, but the absorption of the phase difference plate is linearly polarized and then incident on the quarter-wavelength plate, and the circularly polarized light can be converted into a wide range of visible light or the like. The phase 垚 plate with a length of 1/4 in the wavelength range can be used as a phase difference layer that functions as a monochromatic wave plate for monochromatic light having a wavelength of 55 〇 nm, for example, and a 1/2 wavelength plate. The phase difference layers of the functions are obtained by overlapping them. Because of @, the phase difference plate disposed between the polarizing plate and the brightness enhancement film may be composed of a germanium layer or at least two or more layers of U = poor layers. In addition, when the cholesteric liquid crystal layer is arranged in a superposed structure of two or at least three layers in a combination of different reflection wavelengths, it is possible to obtain a polarized light reflection in a wide wavelength range such as a visible light region, thereby obtaining a wide wavelength range. It penetrates the circular polarized light. Further, the polarizing plate may be formed by laminating a polarizing plate and two or more optical layers as in the above-described polarizing-separating polarizing plate. Therefore, a reflective elliptically polarizing plate or a semi-transmissive elliptically polarizing plate formed by combining the above-described reflective polarizing plate or semi-transmissive polarizing plate and retardation plate may be used. The optical film formed by laminating the optical layer on a polarizing plate can be formed by layering one by one in a manufacturing process of a liquid crystal display device or the like, in order to form an optical film in advance, in terms of quality stability and assembly work. It is superior in terms of properties, so that the process of liquid crystal display devices and the like can be improved, which is an advantage. 24 1261125 The implementation of the layer can be used ^ ^ ^ y, * s temple, as the next means. The phase difference characteristic of the above-mentioned partial plate and other optical layers is such that the optical axis of 4/4 is appropriately arranged at the angle of the temple. The adhesive film optical film of the present invention is produced by the above-mentioned optical film-shaped adhesive layer. The aspect of ά + I ^ h V is not particularly limited, and examples thereof include a method of drying an adhesive solution, a method of transferring a release sheet, and the like: The thickness of the right and left, preferably the Γ/layer is not particularly limited, and when the sound is applied, it can be about /4 UMm. Further, in the formation of the adhesive: an adhesive layer can be formed after the formation of the antistatic layer. In terms of the constituent materials of the release sheet, it is possible to use a polyolefin, a polyethylene terephthalate, a resin film, a rubber sheet, a paper, a cloth, a non-woven fabric, Net body, foaming, and suitable for editing. In the release film ... t is ... the layer of the temple is suitable for separation, depending on the situation, the application of the ketones d layer of peeling low adhesion peeling treatment. Further, in the bonding process, the gas treatment, and the like, the layers such as the optical film of the adhesive optical film of the present invention can also be, for example, a salicylic acid station bismuth layer, a benzotri-line compound diene compound or A UV absorber such as a diphenyl propylene cyanoguanidine compound or a compound can be used as a solvent and a salt. It is called the burying method, etc. to impart ultraviolet ray. The viscous agent optical 叙 described above can be applied to the formation of various image display devices for liquid crystal display. The formation of a liquid crystal display device; the conventional technology of the temple is carried out. That is to say, the liquid crystal display device is generally formed by combining the enamel film and the illuminating material member 25 1261125 used as the case, and then loading it into a driving circuit or the like, and the present invention uses the present invention. The optical film of Ming is not particularly limited, and it can be carried out according to the prior art. Any type of material such as a TN type, an STN type, or a π type can be used for the liquid crystal element. It can be formed on the one side or both sides of the liquid crystal parts, and the liquid crystal display with the adhesive optical film, (4) the backlight or the reflecting plate in the illumination system, and the suitable liquid: 曰 display device. In this case, the optical film of the present invention may be disposed on one side or both sides of the crawler. When the optical film is placed on both sides, the cough may be the same or different. Further, when the liquid crystal display device is formed, the layer can be provided with two or more layers of a film such as a diffusion plate or an anti-glare backlight at a position opposite to the appropriate position, a protective plate, a matrix, a lens array, and a light. Diffusion plate, the appropriate component for the month of the month. Next, the organic electroluminescent device (organic form, the optical device of the present invention is not placed) is described. Ten c first board temple) can also be applied to organic anal display with transparent 1 \ _ device is based on the transparent substrate on the basis of the sound of k-month, organic light-emitting layer, page continued "). Here 'organic light-emitting layer Electroporation is known to have a '2 4 ^ 戍 deposited film layered body, κ, an amine derivative, etc. The hole is implanted into the panel ^ 朵, Μ: female ^ bag / U implant layer and mirror Rong, the luminescent layer formed by the micro-heap body' layer and the perylene derivative Du Duo's layer limbs, other% illuminants, etc.:: The electronic implant layer formed by the ❹ 疋 疋 violation of the temple Various combinations of hole implant layers, hair shell layers, etc., layers of electron-implanted layers, _organic EL 1 贞7F devices are based on the following principles: t, bright electrodes and metal electrodes are applied: ie, right The organic light-emitting layer is implanted into electricity. 26 1261125 14 The pen's edge-like electric hole disk ♦ The object & ', the re-, the, and the combination of the energy generated by the energy will stimulate the fluorescent object, the excited fluorescent light into the ^ ^ The object shell will glow when it returns to the ground state. In the middle, again, seven. This mechanism is the same as _ ^^ , Α and _ pole body, which can be inferred It is known that the book level and the initial intensity are for the application of .. ^ not accompanied by the strong non-linearity of the rectifying in the organic EL display device, one of which derives the light from the organic light-emitting layer, and the electrode on the side must be transparent ray ττη, Rongyue In the pole, the transparent electrode formed by the transparent conductor of indium tin oxide 7 is usually used as an anode. The order is used to increase the luminous efficiency in order to make the electron implant (4)^, and the working function is small.

Mg.Ag ^ A1 T * - When it is important, a metal electrode of g g Al-Li Temple can usually be used. In the above-mentioned organic EL 1 § - 厚度 厚度 f 装置 装置 装置 装置 装置 装置 , 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机 有机Therefore, the organic light is self-transparent and it is the master of the king. Yu Yu, non-illuminated in the whole household + decay, by the g U tooth transparent electrode and the organic light-emitting layer and the light of the known light is reflected, and the &, g again hits the surface of the transparent substrate, so When viewed from the outside, it is mirrored. , E] L 颂 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置 装置The organic EL display on the morning side of the hair layer is equipped with a polarizing plate on the side of the face, in the transparent ~ "month-pole table. The phase difference between the moon electrode and the polarizer is phase. Since the difference plate and the polarizing plate have a function of polarizing the light reflected from the external material and reflected by the rainbow 27 1261125, the mirror surface of the metal electrode can be confirmed from the outside by the polarizing action, which is effective. In order to form the phase difference plate by the 1/4 wavelength plate and adjust the angle between the polarization direction of the polarizing plate and the phase difference plate, the mirror surface of the metal electrode can be completely shielded. That is, the organic EL display device The incident external light can be penetrated by the linear polarization component only by the polarization plate. This linear polarization is elliptically polarized by the phase difference plate, but when the phase difference plate is an i/4 wavelength plate, and the plate and the phase difference are The angle of the plate's polarization direction π/4日寺, polarized light. This circular polarized light usually penetrates the transparent substrate, the transparent electrode, and the organic film, and is reflected on the metal electrode' again penetrates the organic film, the transparent electrode, and the transparent substrate, and becomes a straight line again on the phase difference plate. Polarized light. Since the polarized light of the polarizing plate is positive, it cannot penetrate the opposite direction. Therefore, the mirror surface of the metal electrode can be completely shielded. Embodiments The present invention will be specifically described based on embodiments. The present invention is not limited to these examples, and the parts and % in each of the examples are based on the weight. (Measurement of Tg of the adhesive layer) The adhesive layer is obtained by the DSC method. The measuring device used is a 622 差 type differential scanning calorimeter manufactured by Seiko Instruments Co., Ltd. (Measurement of internal force (F) due to thermal stress of optical film) F αα·ΛΤ·Ε·1·1! 28 1261125 ( Wherein, α is a thermal expansion coefficient of -60 to 23 ° C, ΛΊΓ is a temperature difference based on 23 ° C, E is an elastic modulus, 1 is a width, and h is a thickness.) The coefficient of thermal expansion α is determined by the TMA method. Find out. The fixed device is a TMA/SS6 100 type thermomechanical analysis device manufactured by Seiko Instruments Co., Ltd. The elastic modulus system is obtained by a tensile test performed by the automatic drawing ag-1 manufactured by Shimadzu Corporation. 1 · h-system optical film cutting Example 1 The reaction valley of the condensate tube, the nitrogen introduction tube, the thermometer, and the stirring device was '9 9.9 parts for acrylic acid, 0.1 part and 2, 2 for acrylic acid 2, An azobisisobutyronitrile ruthenium·3 parts were added together with ethyl acetate, and after reacting for 4 hours at 60 ° C under a nitrogen gas stream, ethyl acetate was added to the reaction liquid to obtain an acrylic acid having a solid concentration of 3% by weight. It is a polymer solution (weight average molecular weight of acrylic polymer is 16 million). The solution was blended with 15 parts of trishydroxyhydropropyl toluene diisocyanate and 0. 01 parts of 3-glycidylpropyltrimethoxydecane per 100 parts of the solid content to obtain a propylene-based adhesive. Next, this acrylic adhesive was applied to a spacer (Seperat(R) 1) composed of a polyester film surface-treated with an anthrone-based release agent at 150. The crucible was heat treated for 5 minutes to obtain an adhesive layer having a thickness of 2 Å. The result of the measurement of the adhesive layer was 62. The adhesive agent layer was attached to a single side of a polarizing plate (manufactured by Nitto Denko Corporation, NPF·SEG5224DU) to obtain an adhesive optical film. Thereafter, the adhesive optical film was attached to an alkali-free glass plate of a size of 28 mm x 28 mm by a laminator, and placed in a hot-pressing pot of 50 C and 5 atmospheres for 5 minutes to perform a sufficient press-bonding treatment. β 29 1261125 Also, the stretching axis of the polarizing plate is 90. The thermal expansion coefficient of the direction is 15.3x10 5(1/C), the elastic modulus=3.〇5xl〇9pa, the thickness=185# m, the visibility=270mm, the internal force (F) caused by the heat shrinkage at 〇°c Calculated result, F two 186N. Example 2

An adhesive layer having a thickness of 2 Å #m was obtained in the same manner as in the case of the yoke example 1. The adhesive layer was attached to a single side of a polarizing plate (manufactured by Mindong Electric Co., Ltd., NpF_T) EG5465D U to obtain an adhesive optical film. Thereafter, the adhesive optical film was attached to an alkali-free glass plate of a size of 280 mm x 280 mm by a laminator, and placed in a 50 C, 5 atmosphere hot press for 15 minutes to perform a sufficient press-bonding treatment. Further, the stretching axis for the polarizing plate is at 90. The thermal expansion coefficient of the direction 〇-5.3xl (T5(irC), elastic modulus=36><1〇91^, thickness=1〇5#m, twist=270mm, heat shrinkage at 〇°C Calculation result of internal force (f), F=124N 〇Example 3 ..., for the reaction with a condenser tube, a nitrogen introduction tube, a thermometer, and a stirring device, the state of the valley is 'acrylic acid 2-ethylhexyl 9 9 · 9 parts, 0.1 parts of 2-ethyl acrylate, and 0.3 parts of 2,2, azobisisobutyronitrile were added together with ethyl acetate, and the reaction liquid was reacted under a nitrogen gas stream at 60 ° C for 4 hours. Ethyl acetate was added to obtain an acrylic polymer solution having a solid concentration of 3% by weight (weight average molecular weight of the acrylic polymer was 1.7 million). The solution was mixed with 0.15 parts of trimethylmethylpropane toluene per 100 parts of the solid component. Diisocyanate and 3 parts of 3-glycidylpropyltrimethoxy decane to obtain an acrylic adhesive. Secondly, this acrylic 30 1261125 adhesive is applied to the surface of the tantalum-based release agent. On the spacer formed by the treated concentrating film, at 15 (TC for 5 minutes heating) A thickness 2〇

Pi's adhesive layer. The result of the measurement of the Tg of the dosing layer is 〇C. The adhesive layer was attached to a single side of a polarizing plate (Nippon Electric Co., Ltd., NpF, SEG 5224D U) to obtain an adhesive optical film. After that, the ★Hei adhesive optical film was laminated on a 28〇mmx28〇mm size alkali-free glass plate with a laminating machine's '65Gt' and 5 gas-filled hot-pressing pots for 5 minutes. . ^ Example 4 For a reaction vessel equipped with a condenser, a nitrogen introduction tube, a thermometer, and a stirring device, 99 parts of butyl acrylate, 4 parts of hydroxyethyl acrylate, and 2, azobisisobutyronitrile. 3 parts were added together with acetic acid 乙, under a nitrogen gas stream, 60 t; after 4 hours of reaction, ethyl acetate was added to the reaction liquid to obtain a solid component concentrated | 3 % by weight of an acrylic polymer solution (acrylic acid) The weight average molecular weight of the polymer is 1.65 million). The solution is blended with 0.3 parts of benzoyl peroxide and 2 parts of trishydroxyl-propyl cyanide per 100 parts of the solid component:): fluorene-toluene diisocyanate and 2 parts of 3-glycidylpropyltrimethoxy The decane is used to obtain an acrylic adhesive. Next, the acrylic adhesive was applied to a spacer formed of a polyester film surface-treated with an anthrone-based release agent at 155. The crucible was heat treated for 3 minutes to obtain an adhesive layer having a thickness of 20 // m. The Tg of this adhesive layer was measured and found to be -38 °C. The adhesive layer was attached to a polarizing plate (manufactured by Mindong Electric Co., Ltd., nPF·31 1261125 SEG5224D U), and τ < After that, the adhesive optical film is affixed to the δ square by a layer of people; the alkali-free glass plate of 280 mm x 280 mm is at 50 ° C, <; the name of Jun-& Place in a pressure cooker for 15 minutes to fully press. Comparative example 1

, ΐ方, /, 备・胡官, nitrogen introduction tube, thermometer and reaction vessel of the stirring device, making 95 parts of butyl acrylate, 5 parts of acrylic acid and 2,2,-disordered double isobutyronitrile unacetate - with the addition, after 60 C reaction under a nitrogen gas stream, 4 hours, the reaction solution was added with ethyl acetate to obtain a solid: an acrylic polymer solution having a concentration of 30% (the weight average molecular weight of the acrylic polymer was 2〇). 〇 Wan). The solution was prepared by mixing (10 parts) of the solid component with 6 parts by weight of methyl propylene toluene diisocyanate m G.075 parts = 3 monoglycidylpropyltrimethoxydecane to obtain an acrylic adhesive. Next, this acrylic adhesive was applied to a spacer composed of a ruthenium ruthenium film which had been surface-treated with an anthrone-based release agent, and heat-treated at 1 minute to obtain an adhesive layer having a thickness of 2 G #m. The result of measuring the Tg of the adhesive layer was . The adhesive layer was attached to a single side of a polarizing plate (manufactured by Mindong Electric Co., Ltd., NpF_SEGW24DU) to obtain an adhesive optical film. After that, the adhesive optical film is attached to an alkali-free glass plate of 28 mm×28 〇mm by a laminator, and is fully pressed at 5 (TC, 5 atmospheres of hot-pressed steel for 15 /min). Comparative Example 2 An adhesive layer having a thickness of 2 〇β m was obtained in the same manner as in Comparative Example 1. The adhesive layer of the adhesive layer 32 1261125 was transferred to the polarizing plate used in Example 2 (manufactured by Nitto Denko Corporation, NPF-TEG5465D). The adhesive film optical film is attached to the alkali-free glass plate of 28〇mmx28〇mm size by a laminator on a single side of U) at 50. (:, 5 atmospheres of hot pressing The film was placed in a pan for 15 minutes to perform a sufficient press-bonding treatment. The following evaluations were carried out on the adhesive optical film (sample adhered to the alkali-free glass plate) obtained in the examples and the comparative examples. The results are shown in Table 1. The amount of warpage is set to a level of 平 、 、 以下 以下 以下 以下 以下 以下 以下 以下 以下 以下 ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot ot On the 'Using Gap Rule', the 4 points in the face _ _ macro, >,, the number of the late fix is 4 points average The evaluation criteria are as follows based. Warpage amount of less than 0.5 〇.5inrn broken glass. △ • warpage amount of Chi breaking 0.54. 〇ηιηι. Warpage amount exceeds X-Chi-breaking

[Table 1]

1261125 Industrial Applicability The optical film with an adhesive of the present invention can be suitably used as an optical film including a stretched film, and can be applied to an image display device such as a liquid crystal display device, an organic EL display device, or a PDP. [Simple description of the diagram] (None) [Description of main component symbols] (none)

34

Claims (1)

1 ^61125 X. The scope of application for patents: 1. A person who attaches an adhesive to a layer of adhesive; 苴特η, '了,,,, at least one side of the film has 2 such as Shen_zheng, _ layer~ It is below the price. The adhesion of the first item to the scope of the item is the same as that of the item. The internal force of the pancreas due to thermal stress (F α · ΔΤ · Ε h I弁 At the time of the reference, the thermal expansion coefficient of 〜23°C, Δτ is the resistance of the optical film: Ϊ ' Ε is the elastic modulus '1 is the width 'h is the thickness), the film is produced in the ' °C has a tensile axis of 90 for the stretched film. The internal force (F) of the square scorpion is 50N or more. For example, if you apply for the patent range f i, the adhesive gravitational optical gland, you, τ, /, 3 have polarizing plates and / or phase difference plates. 4' Adhesive optical film according to item 2 of the patent scope of the application, 1 "The film system contains a polarizing plate and/or a phase difference plate. The two types of image display devices are characterized by ☆, and the application patent 4 is used. At least one of the adhesive optical films of any one of the items. XI. Schema: (none) 35