TWI357505B - Optical compensation sheet, polarizing plate and l - Google Patents

Description

1357505 IX. Description of the Invention: [Technical Field] The present invention relates to an optical compensation sheet having an improved surface state and a method of manufacturing the optical compensation sheet. The present invention further relates to a polarizing plate using the optical compensation sheet, and a liquid crystal display device in which the polarizing plate is disposed. [Prior Art] A liquid crystal display device is generally composed of a liquid crystal cell, a polarizing plate, and an optical compensation sheet (phase difference plate), and can be roughly classified into a transmissive liquid crystal display device and a reflective liquid crystal display device. . In the transmissive liquid crystal display device, two polarizing plates are mounted on both sides of the liquid crystal cell, and one or two optical compensation sheets are mounted between the liquid crystal cell and the polarizing plate. The reflective liquid crystal display device is arranged in the order of a reflecting plate, a liquid crystal cell, an optical complement, a compensation sheet, and a polarizing plate. The liquid crystal cell is composed of a two-substrate for enclosing a liquid crystal cell and an electrode layer for applying a voltage to the rod liquid portion. There are various types of display patterns for liquid crystal cells due to different orientation states of rod-like liquid crystal molecules. For transmission type, there are TN (Twisted Nematic) 'IPS (In-Plane Switching) 'FLC (Ferroelectric Liquid Crystal), OCB (Optically Compensatory Bend) 'STN (Supper Twisted Nematic), VA (Vertically Aligned), etc.; for the reflection type, there is a proposal of HAN (Hybrid Aligned Nematic) or the like. In general, a polarizing plate is composed of a polarizing film and a transparent protective film. In general, the polarizing film is obtained by impregnating polyvinyl alcohol with an aqueous solution of iodine or a dichroic dye, followed by one-axis extension of the film. The polarizer 1357505 has a structure in which two transparent protective films are adhered on both sides of the polarizing film. The optical patch is used in a wide variety of liquid crystal display devices in order to eliminate coloration of the screen or to enlarge the viewing angle. In the optical compensation sheet, an extended birefringent film is conventionally used. In place of the optical compensation sheet composed of the extended birefringent film, it is proposed to use a liquid crystal molecule (especially a disc type liquid crystal molecule) on a transparent support. An optical compensation sheet forming an optically anisotropic layer. The optically anisotropic layer is formed by orienting and fixing the alignment state of the liquid crystal molecules. In general, a liquid crystalline molecule having a polymerizable group is used to immobilize an oriented state by a polymerization reaction. Liquid crystal molecules have large birefringence, and liquid crystal molecules have various orientation forms. Optical properties which are not obtained by conventional extended birefringent films can be realized by using liquid crystal molecules. The optical properties of the optical compensation sheet are determined according to the optical properties of the liquid crystal cell, and specifically according to the above display pattern. The use of a liquid crystal molecule in an optical compensation sheet', particularly when a disc type liquid crystal molecule is used, can produce a wide variety of optical compensation sheets of optical properties, which can be adapted to various display patterns of liquid crystal cells. An optical compensation sheet using a disc type liquid crystal molecule has been proposed to be suitable for various display types. For example, TN type liquid crystal cell optical compensation sheet (refer to Patent Documents 1 to 4), IPS type or FLC type liquid crystal cell optical compensation sheet (refer to Patent Document 5), OCB type or Η AN type liquid crystal cell optical compensation The film (see Patent Document 6 or 7), the STN type liquid crystal cell optical compensation sheet (see Patent Document 8), and the VA type liquid crystal cell optical compensation sheet (see Patent Document 9), etc. When an optical compensation sheet of an optically anisotropic layer (formed by the orientation of immobilized 1357505 liquid crystal molecules) is provided on the body, an alignment film is provided between the transparent support and the optically anisotropic layer. At this time, adhesion between the transparent support (usually a cellulose acetate film) and the oriented film is necessary. Further, although the orientation of the alignment film can be treated by friction, application of an electric field, application of a magnetic field, or light irradiation, there is minute dust on the alignment film. Adhesion may impair the uniformity of orientation. In particular, in the case of rubbing treatment, it is necessary to have countermeasures against static electricity due to the surface of the rubbing film. Therefore, in general, the oriented film is preferably a water-soluble resin cured film, and in particular, a cured film composed of a resin containing a hydroxyl group such as polyvinyl alcohol or a curing agent is used. In general, the use of a cellulose acetate film as a transparent support is hydrophobic, and the affinity with a water-soluble resin cured film is poor. In order to eliminate such a situation, it is disclosed that a primer layer such as gelatin is provided as an adhesive layer (for example, refer to Patent Document 10). Alternatively, an alkali saponification treatment is applied to the surface of the transparent support (specifically, a cellulose acetate film), and an orientation film for imparting adhesion to the surface of the support (see, for example, Patent Document 11) is used. However, when the gelatin is applied to the underlayer, there is a problem that the film thickness of the support is thinned and the coating solvent contained in the underlayer is affected, and the coating cannot be uniformly applied. The above-mentioned "orientation film composed of a water-soluble resin cured film by coating" is rapidly hardened and reacted, and humidity resistance after film formation is important. For example, there is a coating liquid obtained by coating a polyvinyl alcohol resin, a bifunctional aldehyde compound, and an oxygen compound, and a method of curing (see Patent Document 12), and adding an acid to the modified polyvinyl alcohol and the curing agent. A method of forming an acidic condition coating liquid and hardening (refer to Patent Document 13 paragraph number [0148]). Further, when an optical compensation sheet using a liquid crystal molecule and a polarizing plate are used as a circular polarizing plate, the optical compensation sheet can have a function as a transparent protective film on one side of the polarizing film. In other words, the transparent polarizer of the optical compensation sheet of the liquid crystal molecule and the protective film on the side of the polarizing plate are combined to form a circular polarizing plate having a transparent protective film, a polarizing film, a transparent support, and a liquid crystal. The layer structure of the order in which the optically anisotropic layers are formed by the molecules. The liquid crystal display device is required to have a thin and lightweight feature, and if one of the constituent factors can be deleted by both uses, the device can be made thinner and lighter. Further, if one of the constituent elements of the liquid crystal display device can be deleted, the step of affixing an adhesive component can be eliminated, and the possibility of malfunction in manufacturing the device can be reduced. In the case of the use of the transparent support of the optical compensation sheet of the liquid crystal molecule and the one side protective film of the polarizing plate, a circular polarizing plate has been proposed (see, for example, Patent Documents 14 to 16). In the production of an optical compensation sheet, an alignment film and an optically anisotropic layer are formed on a transparent support, and the optically anisotropic layer is oriented by immobilizing liquid crystal molecules. Since the alignment film is optically non-defective, it is important to control, orient the treatment (especially, rubbing treatment using friction), and the moisture resistance of the sheet. Therefore, a hydrophilic resin cured film which is hard to generate static electricity is widely used. The transparent support (usually a cellulose acetate film) imparts hydrophilicity to the surface of the hydrophilic-oriented oriented film (usually polyvinyl alcohol) coated on the application side to maintain adhesion to the oriented film. In order to impart adhesion and adhesion, it is proposed to provide a primer such as gelatin on a film (for example, refer to Patent Document 1), and perform energy line irradiation treatment on the surface of the film (for example, glow discharge, corona discharge, ultraviolet irradiation, etc.). A method of imparting hydrophilicity by flame treatment, drug treatment (for example, acid, alkali, ozone) or the like. [Patent Document 1] Japanese Patent Laid-Open No. Hei. No. Hei. No. Hei. No. Hei. No. 5, 516, 755 [Patent Document 5] Japanese Patent Laid-Open No. Hei 10-54982 (Patent Document 6) US Patent No. 5^05 25 No. 3 [Patent Document 7] International Japanese Laid-Open Patent Publication No. Hei 9-26572 [Patent Document No. 9] Japanese Patent Laid-Open No. Hei. [Patent Document 12] Japanese Patent Laid-Open Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. [Patent Document 15] Japanese Patent Laid-Open Publication No. Hei 8- No. Hei 8- No. Hei 8-98 No. a transparent support body coated on the oriented film, When the optically anisotropic layer, a stable orientation state producing no influence, mottled surface state does not occur (e.g. linear mottle in the longitudinal direction of the film, white peeling phenomenon) is important. However, even if the above-mentioned technique is used, it is difficult to have both adhesion to the alignment film layer and a good surface state, and it is easy to cause optical defects (for example, white falling off phenomenon), in particular, When a long-sized film is produced, there is a problem that the yield of a person having practical properties is remarkably lowered, and it can be said that it is still insufficient. 1357505 one contains an organic acid compound which contains a polar group, so that an optical compensation sheet having no optical defects can be stably obtained. Further, the polarizing plate of the present invention contains an alignment film and optical anisotropy on a transparent support. A layer of optical compensation sheet, a polarizing film, and a transparent protective film. In general, the transparent support of the optical compensation sheet is hydrophobic, and in general, the surface treatment is carried out in order to obtain adhesion to the oriented film of the hydrophilic resin cured film. As a result of the investigation of the present invention, it has been found that an optical compensation sheet having both adhesiveness and a good surface state can be obtained by using a transparent support which is subjected to saponification treatment by applying an alkali solution. However, after saponification with an alkali solution, it is necessary to sufficiently wash, and if the cleaning is insufficient, the orientation of the optical compensation sheet obtained by laminating the transparent support, the alignment film, and the optically anisotropic layer may occur. problem. In the present invention, when an optically anisotropic layer is formed on an oriented film, in particular, when an optically anisotropic layer is formed, when the optically anisotropic layer is formed, the organic acid is contained in the liquid crystalline molecule, and the solution is applied to produce the optical. In the case of the compensation sheet, even if the step of washing and removing the alkali solution is insufficient, the orientation is not affected, and a stable optical compensation sheet can be obtained. Further, it has been found that when a carboxylic acid compound containing a specific polar group is added to a composition for an alignment film applied to a transparent support having adhesion, it is possible to obtain both film adhesion and a good surface state. Optical compensation sheet. Further, it has been found that an optical compensation sheet having a good surface state can be obtained by precisely controlling the pH 値 on the surface of the alignment film and coating an optically anisotropic layer composed of a liquid crystal compound thereon. It can be presumed that 'in the formation of the oriented film of the present invention, the hardening of the film - 14 - 1357505 is uniformly performed, and the rubbing treatment also makes the entire surface of the film into a non-mottled orientation state, and the optically anisotropic layer can be uniformly One of the factors for coating. The optical compensation sheet of the present invention is characterized in that the surface condition is good, the adhesion of the film is high, and the mottle is small. The optical compensation sheet of the present invention having excellent characteristics as described above is suitably used in a liquid crystal display device characterized in that the mottle is very small. [Embodiment]

Hereinafter, the optical compensation sheet of the present invention, a method of producing the same, a polarizing plate using the optical compensation sheet, and a liquid crystal display device in which the polarizing plate is disposed will be described in detail. First, an optical compensation sheet and a method of manufacturing the same will be described. As described above, the optical compensation sheet of the present invention has a layer structure in which a process of imparting adhesion in advance to the transparent support, an alignment film, and an optically anisotropic layer are sequentially laminated. (transparent support)

The transparent support of the present invention is preferably a glass or a transparent polymer film. The light transmittance of the transparent support is preferably 80% or more. Examples of the polymer constituting the polymer film include cellulose vinegar (for example, a single to three-dimensional object of cellulose), and a norbornane-based polymer (Yadong and Jeoneckus (both Trade name; transliteration)) or polymethyl methacrylate. Moreover, even a conventional polymer such as polycarbonate and poly-rolling which is prone to birefringence, as described in International Publication No. 00/26705, can be used if the refracting property can be controlled by modifying the molecule. As the optical film of the present invention. The polyfilm of the present invention is preferably a cellulose ester, more preferably a cellulose acetate -15-1357505 vegan. The thickness of the transparent support of the present invention is preferably 20 to 500 / / m, more preferably 40 to 200 / zm, and most preferably 30 to 80 / zm. When the polymer film is used for an optical compensation sheet, it is preferred that the polymer film has a desired retardation. The Re-blocking enthalpy and the Rth-blocking enthalpy of the polymer film are defined as follows and (Π) (I ) Re = | nx-ny | xd (Π ) Rth = { (ηχ + η y)/2-nz} d In the equations (I) and (Π), the refractive index in the direction of the slow phase axis (the direction in which the refractive index is maximum) in the plane of the η-based film, and the direction of the phase-in-axis in the plane of the ny-based film (the direction in which the refractive index is the smallest) The refractive index, the refractive index in the thickness direction of the nz-based film, and the film thickness in the case where the d-system is nm. The retardation of the polymer has different preferred ranges due to the liquid crystal display device using the optical compensation sheet and the method of using the same. Generally, the Re block 値 is 〇200 nm, and the Rth block 値 is adjusted at 70 to 400 nm. The range is preferably. When the liquid crystal display device uses the two optical anisotropic layers, the Rth retardation enthalpy of the polymer film is preferably in the range of 70 to 250 nm. When an optically anisotropic layer is used for the liquid crystal display device, the Rth retardation enthalpy of the polymer film is preferably in the range of from 150 to 400 nm. Further, the complex refractive index (??: nx-ny) of the polymer film is preferably in the range of 0.00018 to 0.020. Further, the complex refractive index { (nx + n y) / 2 - nz} in the thickness direction of the polymer film is preferably in the range of 0.001 to 0.04. In order to adjust the retardation of the polymeric film, a general method is to apply an external force such as stretching, and other methods include adding a retarding agent to adjust the optical anisotropy. 1357505 The cellulose ester used in the present invention is preferably a lower fatty acid ester using cellulose. Lower fatty acids are meant to be fatty acids below 6 carbon. A cellulose halide having 2 to 4 carbon atoms is preferred, and cellulose acetate is preferred, and a mixed fatty acid ester such as cellulose acetate propionate or cellulose acetate butyrate may also be used. The cellulose acetate cellulose has a viscosity average degree of polymerization (DP) of preferably 250 or more, more preferably 290 or more. Further, cellulose acetate is preferably narrower in molecular weight distribution of Mw/Mn (Mw is a mass average molecular weight and Μη is a number average molecular weight) by gel permeation chromatography. The specific Mw/Mn is preferably from 1.0 to 4.0. The transparent support of the present invention preferably uses cellulose acetate having a degree of acetylation of 55.0 to 62.5%. The degree of acetylation is preferably from 57.0 to 62.0%, and particularly preferably from 59.0 to 61.5%. The meaning of the degree of acetylation is the amount of acetic acid per unit mass of the vegetal, and the degree of acetylation is determined and calculated according to the degree of acetylation in ASTM: D-817-91 (test method of cellulose acetate, etc.). get. Cellulose acetate is not replaced by the second, third, and sixth hydroxyl groups of cellulose, and has a tendency to have a small degree of substitution of the hydroxyl group at the sixth position. The cellulose acetate used in the present invention is cellulose. When the degree of substitution of the 6 position is compared with the second and third places, it is preferably the same degree or more. With respect to the total substitution degree of the 2nd, 3rd, and 6th positions, the substitution ratio of the 6th position is preferably 30 to 40%, more preferably 31 to 40%, and 32 to 40% is optimal. The degree of substitution at the sixth position is preferably 0.88 or more. As described above, the use of the retardation enhancer can increase the retardation of the transparent support in the thickness direction, and the retardation enhancer can have at least a diaromatic ring, -17-1357505, and has a stereoscopic coordination with respect to the aromatic ring. A compound of molecular structure of a disorder. The aromatic compound is preferably used in an amount of from 0.05 to 15 parts by mass, more preferably from 0.1 to 10 parts by mass, based on 100 parts by mass of the cellulose ester. Two or more kinds of aromatic compounds may be used in combination, and an aromatic ring of an aromatic compound may include an aromatic carbon water hydrogen ring and an aromatic hetero ring. Examples of the retardation-increasing agent include the compounds described in the specification of the European Patent No. 09 1 1 65 6 A2, the Japanese Patent Publication No. 2000-111914, and the Japanese Patent Publication No. 2000-275434. The cellulose ester film of the present invention preferably has fine particles added in order to maintain good scratch resistance and film handling property. These have been conventionally referred to as matt agents, antiblocking agents, and anti-creaking agents. The above-mentioned functions are not particularly limited, and preferred examples of the matting agents include inorganic compounds containing cerium, cerium oxide, titanium oxide, zinc oxide, aluminum oxide, cerium oxide, and zirconia. , cerium oxide, cerium oxide, tin oxide, antimony tin oxide, calcium carbonate, talc, clay, calcined kaolin 'calcined calcium citrate, hydrated calcium citrate, aluminum citrate, magnesium citrate and calcium phosphate, etc. It is more preferable to use an inorganic compound containing cerium and chromium oxide because the turbidity of the cellulose ester film can be lowered to use cerium oxide. Further, the surface-treated inorganic fine particles are preferably those having good dispersibility in the cellulose ester. The treatment method may be, for example, a method described in Japanese Patent Laid-Open Publication No. SHO 54-57562. The particles may be, for example, those described in Japanese Patent Laid-Open Publication No. 2001-159. The organic compound 1357550 is, for example, preferably a crosslinked polystyrene, an anthracene resin, a fluororesin or an acrylate polymer, wherein a ruthenium resin is preferably used, and among the ruthenium resins, particularly those having a three-dimensional network structure are preferred. . The cellulose ester film of the present invention may be added with a plasticizer in order to improve mechanical properties and drying speed. As the plasticizer, a phosphate ester or a carboxylate can be used. Specifically, it is preferable to use the contents disclosed in the 16th item of the Japan Invention Association Open Technical Bulletin (public technology No. 2 00 1 - 1 745, March 15, 2001, Issued Invention Association). Specifically, examples of the phosphate ester include triphenyl phosphate (TPP) and tricresyl phosphate (TCP). Carboxylic esters are represented by phthalates and citrates. Examples of phthalates containing dimethyl phthalate (DMP), diethyl phthalate (DEP), dibutyl phthalate (DBP), dioctyl phthalate (DOP), diphenyl phthalate (DPP), and diethylhexyl phthalate (DEHP). Examples of citrate esters are o-position acetonitrile triethyl citrate (OACTE) and ortho-acetic acid tributyl citrate (OACTB). Examples of other carboxylic acid esters include butyl oleate, methyl decyl ricinoleate, dibutyl sebacate, and various types of trimellitic acid esters. It is preferred to use a phthalate-based plasticizer (〇MP, DEP, DBP, DOP, DPP, D'EHP). It is especially good to use DEP and DPP. The amount of the plasticizer added is preferably from 0.1 to 25% by mass based on the amount of the cellulose ester, more preferably from 1 to 20% by mass, and most preferably from 3 to 15% by mass. Further, a cellulose ester film of the present invention may further contain a deterioration preventing agent (e.g., an antioxidant, a peroxide decomposing agent, a radical inhibitor, a metal passivating agent (acid scavenger, an amine), an ultraviolet ray preventing agent, and the like. Examples of the deterioration preventing agent include Japanese Patent Laid-Open No. Hei 3-199201, No. 5-1907073, Special Kaiping No. 5 - 1 9 4 7 8 9 , Special Kaiping 5 - 2 7 1 4 7 1 , and Special Kaiping 6 - Compounds as described in each of the publications of 1 0 7 8 5 4 -19- 1357505. The additive for the deterioration preventing agent is preferably a solution (doping) of 0.01 to 1% by mass, more preferably 0.01 to 0.2% by mass. An example of a particularly preferable deterioration preventing agent is butylated hydroxytoluene (BHT). The ultraviolet ray-preventing agent is exemplified by the compound described in Japanese Laid-Open Patent Publication No. Hei. No. 5-5, No. Hei. Moreover, the details of such materials are preferably those described in detail on pages 17 to 22 of the above-mentioned public technical number 2001-1745. Further, the cellulose ester film used in the optical compensation sheet of the present invention preferably has a hygroscopic expansion coefficient of 30 X 10 · 5 / % RH or less. The moisture absorption coefficient is preferably 1 5 X 1 〇_5/% RH or less, and more preferably 10 0 1 0-5/% RH or less. Further, although the coefficient of hygroscopic expansion is preferably small, it is usually 1.0 X 1 (T5/% RH or more. The coefficient of hygroscopic expansion shows the amount of change in the length of the sample when the relative humidity is changed at a certain temperature. By adjusting the coefficient of hygroscopic expansion, while maintaining the optical compensation function of the optical compensation sheet, it is possible to prevent light leakage due to the increase in the transmittance of the frame-edge, that is, the deformation. The method for measuring the coefficient of hygroscopic expansion is as follows. The obtained cellulose ester film was cut into a sample having a width of 5 mm and a length of 20 mm, and one end portion was fixed and suspended in an environment of 25 t:, 20% RH (RO). The other end was suspended at a height of .5 g. The crucible was placed for 10 minutes, and the length (L0) was measured. Then, the temperature was maintained at 25 ° C and the humidity was 80% RH (R1), and the length (L1) was measured. The hygroscopic expansion coefficient was calculated using the following formula. The same sample was measured for 1 〇 sample, and the average enthalpy was taken. The coefficient of hygroscopic expansion [/% RH] = { (L b L0) / L0 } / (Rl - R0) In order to reduce the moisture absorption of the cellulose ester film produced Produced ruler -20- 1357505 with base 0 Jiaxiang for aryl and other sub-grain family The fat or fat substance has a sub-base water in the compounding, and is used in the plasticizer and the deterioration preventing agent which have a hydrophobic base such as a base water addition degree. The amount of the compound to be added is preferably in the range of 0.01 to 10% by mass based on the adjustment solution (doping). Further, it is preferable to reduce the free volume in the cellulose ester film. Specifically, when a film is formed by a solvent casting method described later, the amount of residual solvent can be reduced to reduce the free volume. The amount of residual solvent can be made in the range of 〇.〇1 to 1.00% by mass based on the cellulose ester film. The drying is preferably carried out under conditions. (Manufacturing method of transparent support) In the present invention, it is preferred to produce a cellulose acetate film by a solvent casting method. A film can be produced by using a solution (doped) in which cellulose acetate is dissolved in an organic solvent. The organic solvent to be used may, for example, be an organic solvent known in the prior art. For example, the solubility parameter is preferably in the range of 7 to 2 2. The chloride of the lower aliphatic hydrocarbon, a primary aliphatic alcohol, a ketone having 3 to 12 carbon atoms, an ester having 3 to 12 carbon atoms, an ether having 3 to 12 carbon atoms, an aliphatic hydrocarbon having 5 to 8 carbon atoms, and a carbon number of 6 ～12 aromatic hydrocarbons, etc. Ethers, ketones and esters may also have a cyclic structure. Any of the functional groups having ethers, ketones and esters (ie, -0-, -CO- and -C00-) Two or more kinds of compounds may also be used as the organic solvent. The organic solvent may have other functional groups such as an alcoholic hydroxyl group. When an organic solvent having two or more kinds of functional groups is used, the number of carbon atoms is a compound having any one of the functional groups. - It can be within a certain range. '-21 - 1357505 Specifically, for example, the detailed compounds in the 12th to 16th pages of the above-mentioned public technical number 200 1 - 1 745 can be mentioned. In particular, in the present invention, it is preferred to use a solvent in which two or more kinds of organic solvents are mixed, and a particularly preferable organic solvent is a mixed solvent of three or more types different from each other, and the first solvent is a ketone having a carbon number of 3 to 4 and a carbon atom. The number is 3~4 ester or a mixture thereof, and the second solvent is selected from a ketone having 5 to 7 carbon atoms or acetamidine acetate, and the third solvent is from a boiling point of 30 to 170 °C. It is preferred to select an alcohol or a carbohydrate having a boiling point of 30 to 170 °C. In particular, a mixing ratio of 20 to 90% by mass of the acetate, 5 to 60% by mass of the ketone, and 5 to 30% by mass of the alcohol is preferable from the viewpoint of the solubility of the cellulose acetate. Further, a non-halogen organic solvent containing no halogenated hydrocarbon is particularly preferred. Technically, although a halogenated hydrocarbon such as dichloromethane is used, there is no problem, but from the viewpoint of the global environment and the working environment, the organic solvent is preferably substantially free of halogenated hydrocarbons. "Substantially free" means that the ratio of halogenated hydrocarbons in the organic solvent is less than 5% by mass (preferably less than 2% by mass). Further, it is preferred that the produced cellulose acetate film is completely free from halogenated hydrocarbons such as dichloromethane. The organic solvent to be used in the present invention may be exemplified by the paragraphs [0021] to [0025], and the specification of JP-A-2002-146045. The solvent system of the above paragraphs [0016] to [002 1]. The doping used in the present invention is preferably in addition to the above-mentioned organic solvent of the present invention, and it is preferable that the fluoroalcohol and the dichloromethane are the total organic solvent amount of the invention: 22 to 1357505, less than 1% by mass, more preferably When it is 5% by mass or less, the transparency of the film can be improved and the solubility can be accelerated. The fluoroalcohol is preferably a boiling point of 165 t or less, preferably 1 1 1 ° C or less, and more preferably 8 1 or less. The fluoroalcohol has a carbon number of 2 to 10, preferably 2 to 8. Further, the fluoroalcohol-based aliphatic alcohol-containing substituent of the fluorine atom may be used. The substituent is preferably a fluorine atom or an aliphatic substituent or an aromatic substituent which is not contained. The fluoroalcohol may, for example, be a compound described in Paragraph No. [0020] in the specification of Japanese Laid-Open Patent Publication No. Hei No. Hei No. Hei No. Hei No. Hei No. Hei. These fluoroalcohols may be used in combination of two or more kinds. The cellulose acetate solution of the present invention may be prepared by filling the container with an inert gas such as nitrogen. The viscosity of the cellulose acetate solution before the film formation can be casted during the film formation, and it is usually preferably in the range of l〇ps s to 2000 ps S, and particularly preferably 30 ps to 400 ps S. The preparation method of the cellulose acetate solution (doping) according to the present invention is not particularly limited, and may be a room temperature dissolution method, a cooling dissolution method or a high temperature dissolution method, and a method of combining these may be carried out. For example, Japanese Patent Laid-Open No. Hei-5- 633 0 1 , JP-A-61-106628, JP-A-58-127737, JP-A-9-95544, JP-A 10-95854, and JP-A 10-45950, special open 2000-53784, special open flat 11-322946, and special open flat 11-322947, special open flat 2-276830, special open 2000-273239, special open flat 11-71463, special open flat 04-259511, special open 2000 -273184', JP-A-H11-323017, JP-A-11-302388, etc. Preparation of Cellulose Telluride Solution, Method for Dissolving Cellulose Telluride in Organic Solvent as described above, in the present invention -23- 1357505 is also suitable for use in the scope of the present invention, and such techniques can also be applied. Further, the dope solution of cellulose acetate is usually subjected to concentrated filtration of the solution, and is similarly described on page 25 of the above-mentioned public technical number 2001-1745. Further, when it is dissolved at a high temperature, it is almost always above the boiling point of the organic solvent used, and in this case, it is used under a pressurized state. Next, a method and apparatus for producing a cellulose halide film using the method for producing a film of a cellulose halide solution of the present invention, which is referred to as a drum method or a band for producing a cellulose acetate film, will be described. As the method, a solution casting film forming method and a solution casting film forming apparatus which are conventionally known can be used. Taking the belt method as an example to illustrate the step of film formation, the doping (cellulose acetate solution) prepared by the dissolving machine (pot) is temporarily placed in a storage pot to store the bubbles contained in the doping. The deuterium is defoamed for final modulation. The modulated doping is pumped from the doping discharge port to the pressurizing die through a pressurizing metering gear. The pressurizing metering gear pump can quantitatively deliver the liquid by the number of rotations to make the doping from pressurization. The metal nozzle (slit) of the die is continuously traveled and uniformly cast on the metal support of the casting portion, and the semi-dry doped film is also formed at a peeling point of about one turn around the metal support (also called Stripped from the metal support for the web. The two ends of the obtained ribbon are clamped by a clip, and are conveyed and dried using a tenter while maintaining the width, and then conveyed and dried using a roller group drying device, and the winding machine is used according to the prescribed length. Take a roll. The combination of the tenter and the roller group drying device can be varied depending on the purpose. Regarding each of the manufacturing steps (classified as casting (including co-casting), metal support, drying, peeling, stretching, etc.), the above-mentioned public technical number 200 1 - 1 745, page 25 ~ The content detailed on page 30. The casting step can extend the single-layer flow of the cellulose silicide solution of one type from 24 to 1357505, and can also co-cast both types of the cellulose halide solution simultaneously and in stages. Further, the cellulose acetate solution of the present invention may be subjected to simultaneous casting of other functional layers (e.g., an adhesion layer, a dye layer, a charging prevention layer, an antihalation layer, a absorbing layer, a polarizing layer, etc.). In order to make it a necessary thickness, it is necessary to extrude a high-concentration and high-viscosity cellulose acetate solution. At this time, solid matter, sudden failure, and surface properties may occur due to poor stability of the cellulose acetate solution. Bad questions and so on. This solution 'can be carried out by casting a plurality of cellulose acetate solutions from the casting opening. The high viscosity solution can be simultaneously extruded on the support, not only can the surface surface of the excellent surface film be improved, but also the thick acetic acid can be used. The cellulose solution can achieve a reduction in drying load and can increase the production speed. (Method of imparting adhesion to a transparent support) When the alignment support film is provided in a coating manner in the transparent support of the present invention, it is preferable to impart adhesion on the surface of the transparent support so as to perform surface treatment to uniformly coat the alignment film. Coating solution. As a method of surface treatment, there can be mentioned a method of providing a primer layer for an alignment film. A primer layer as described in Japanese Laid-Open Patent Publication No. Hei 7-333433, or a single layer method of applying only a layer of a resin layer such as gelatin, the first layer 'this layer (hereinafter abbreviated as the first layer) The polymer film is well adhered, and the gelatin contains both a hydrophobic group and a hydrophilic group, and a so-called heavy layer method (for example, as described in Japanese Laid-Open Patent Publication No. Hei No. Hei. A hydrophilic resin layer such as a gelatin which is well adhered to the first layer of the primer layer and adhered to the film (hereinafter referred to as a base layer 2). 1357505 Other surface treatments include corona discharge treatment, luminescent discharge treatment, ultraviolet irradiation treatment, flame treatment, ozone treatment, acid treatment, alkali treatment, and the like. This is described in detail on pages 30 to 32 of the above-mentioned utility model number 2001-1745. Among these, the alkali saponification treatment is extremely effective in the surface treatment of the cellulose acetate film. (Alkal saponification treatment) The alkali saponification treatment is carried out by impregnating, spraying or coating an alkali solution on a transparent support. The saponification treatment is preferably carried out by coating, and examples of the coating method include an impregnation coating method, a curtain coating method, an extrusion coating method, a bar coating method, and an E-coating method. (Alkali solution) The alkali solution of the present invention is preferably an alkali solution having a pH of 1 1 or more, more preferably pH 1 2 to 14. Examples of the alkaline agent used in the alkali solution include inorganic alkali agents such as sodium hydroxide, potassium hydroxide, and lithium hydroxide. Further, diethanolamine, triethanolamine, and DBU (1,8-diazabicyclo[5, 4,0]-7-undecene), DBN (1,5-diazabicyclo[4,3,0]-5-ene), tetramethylammonium hydroxide, tetraethylammonium hydrogen An organic tanning agent such as an oxide 'tetrapropylammonium hydroxide, tetrabutylammonium hydroxide or trimethylbutylammonium hydroxide. These alkali chemicals may be used singly or in combination of two or more kinds, or a part thereof may be added in the form of, for example, a halogenated salt. Among these alkaline agents, sodium hydroxide or potassium hydroxide is preferred because the pH can be adjusted in a wider pH range by adjusting the amounts. The concentration of the alkali solution is determined according to the kind of the base to be used, the reaction temperature, and the time of the reaction of 1357505. The alkali agent content is preferably 0.1 to 5 mol/kg in the alkali solution, more preferably 0.5 to 3 mol/kg. The solvent of the alkali solution of the present invention is preferably composed of a mixed solution containing water and a water-soluble organic solvent. The organic solvent can be used if it can be mixed with water. The boiling point is! 2 〇. (The following is preferable, and it is more preferably 100 ° C or less. Among them, the organic solvent has an inorganic/organic enthalpy (I/O値) of 0.5 or more, and the solubility parameter is 16 to 40 [mJ/m3]1/ 2 is preferably 1/0 値 is 0.6 to 10 or more, and solubility _: number is 18 to 31 [mJ/m 3 ] 1/2 is more preferable. I/O 値 its inorganicity is stronger than this range' or When the solubility parameter is low, the alkali saponification rate is lowered' and the overall uniformity of the degree of saponification becomes unsatisfactory. On the other hand, if the I/O ratio is more on the organic side or the solubility parameter is higher in solubility, In the case of the side, the alkali saponification rate is increased, and turbidity is likely to occur, so that the overall uniformity is also not satisfied. Further, the organic solvent, in particular, the solvent of each of the above-mentioned organic properties and solubility, and the surfactant described later, When a combination of a compatibilizing agent or the like is used, a high saponification rate can be maintained, and the uniformity of the saponification degree can be improved. The organic solvent having a preferable characteristic is exemplified by, for example, the Organic Synthetic Association. Handbook ((share) Ou Mu (transliteration), 1994), etc. Said things. (Also, the organic solvent on inorganic / organic Zhi (I / O Zhi), e.g. Tian Zhongshan students with the concepts of FIG organic) Sankyo Publishing 1983 Journal of '1 ~ 31 illustrated).

Specifically, a monovalent aliphatic alcohol (for example, methanol, ethanol, propanol, butanol 'pentanol, hexanol, etc.) or an alicyclic alcohol compound (for example, -27-1357505 cyclohexanol, A) may be mentioned. Cyclohexanol, methoxycyclohexanol, cyclohexylmethanol, cyclohexylethanol, cyclohexylpropanol, phenylalkanol (eg T alcohol 'phenyl alcohol, phenylpropanol, phenoxyethanol, methoxy a base of a heterocyclic alkanol compound (mercapto alcohol, tetrahydrofurfuryl alcohol, etc.) or a monoether of an ethylene glycol compound (methyl cellosolve, ethyl cellosolve, etc.) Propyl cellosolve, methoxymethoxyethanol, butyl cellosolve, hexyl cellosolve, methyl mercapto alcohol, ethyl carbitol, propyl hydrazide, butyl hydrazine, methoxy Triethylene glycol, ethoxy triethylene glycol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, propylene glycol monopropyl ether, etc.), ketones (such as acetone, methyl ethyl ketone, methyl butyl ketone, etc.), Indoleamines (eg N,N-dimethylformamide, diethylformamide, methylpyrrolidone, 1,3 dimethylimidazolidinone, etc.), sub-grinding (such as dimethyl sub-milling) and ethers (such as tetrahydrofuran, pyran, dioxane, trioxane, dimethyl cellosolve, diethyl cellosolve, dipropyl cellosolve 'methyl B The above-mentioned cellosolve, dimethyl carbitol, diethyl carbitol, methyl ethyl carbitol, etc.) The organic solvent to be used may be used singly or in combination of two or more. When at least one of the two or more types is mixed, it is preferred that the solubility in water is large. The solubility of the organic solvent in water is preferably 50% by mass or more, and it is preferably such that it can be freely mixed with water. The alkaline agent, the fatty acid salt produced by the saponification treatment, and the carbonate formed by absorbing carbon dioxide in the air have a sufficiently soluble alkali solution. The mixing ratio of water to the organic solvent is 3/97 to 85/15 by mass ratio. Preferably, the mass ratio of 5/9 5 to 6 0/40 is more preferable, and in this range, the film can be easily and uniformly saponified from 28 to 1357505 without impairing the optical properties of the vaporized film. Organic using an alkali solution for the invention The above-mentioned organic solvent having a preferred I/O oxime and a different organic solvent (for example, a fluorinated alcohol) may be used as a dissolution aid of a surfactant and a compatibilizing agent to be described later. The total weight of the liquid used is preferably 0.1 to 5%. Preferably, the alkali solution used in the present invention is preferably a surfactant. The surfactant is added, the surface tension is lowered to facilitate coating, and the coating uniformity can be improved. The saponification reaction can be uniformly performed by preventing the presence of an organic solvent, and the saponification reaction can be carried out uniformly. The effect is particularly remarkable by coexisting with a compatibilizing agent to be described later. The surface activity to be used is not particularly limited. Any of an anionic surfactant, a cationic surfactant, an amphoteric surfactant, a nonionic surfactant, a fluorine-based surfactant, or the like may be used. Specifically, for example, Yoshida will be the "Interacting Agent Handbook (New Edition)" (Engineering Books, issued in 1987), and "Interacting Agents, Machine Tools, Materials Development and Application Technology", Part 1 (Technology) Educational publications, issued in 2000), and other known compounds. Among these surfactants, polyoxyalkylene glycol derivatives such as a 4-stage ammonium salt as a cationic surfactant, a nonionic surfactant, and various polyoxyethylene additions are also used. A betaine type compound of an ethylene derivative or an amphoteric surfactant is preferred. The alkaline solution preferably has a nonionic active agent and an anionic activity, or a nonionic active agent and a cationic active agent, which can enhance the effects of the present invention. The amount of the surfactant to be added to the alkali solution is preferably 0.001 to 10 0 -29 to 1357505 vol%, more preferably 0 0.001 to 5% by mass. The alkali solution used in the present invention preferably contains a compatibilizing agent. The term "combustion agent" as used herein means a hydrophilic compound having a water solubility of 50 g or more with respect to 100 g of a compatibilizing agent at a temperature of 25 °C. The solubility of the water of the compatibilizing agent is preferably 80 g or more, more preferably 100 g or more, based on 1 〇〇g of the compatibilizing agent. Further, when the compatibilizing agent is a liquid compound, the boiling point is preferably 100 ° C or more, more preferably 1 2 0 t or more. The compatibilizing agent can prevent the alkali solution adhering to the wall such as the bath in which the bismuth solution is stored from drying and suppress adhesion, and has an effect of keeping the alkali solution stable. Further, the application of the alkaline solution on the surface of the transparent support prevents the film of the applied alkali solution from drying after the saponification treatment is stopped for a certain period of time to cause the solid component to be folded out and washed in the water washing step. The removal of solid components has a difficult effect. Further, the water as a solvent is prevented from being separated from the organic solvent. In particular, by the coexistence of the surfactant and the organic solvent and the above-mentioned compatibilizing agent, the opacity of the transparent support obtained by the treatment is reduced, and even a long-sized continuous saponification treatment can have a stable and uniform saponification degree. The compatibilizing agent is not particularly limited as long as it satisfies the above conditions, and for example, a water-soluble polymer containing a repeating unit having a hydroxyl group and/or a hydrazine such as a polyol compound or a saccharide is preferable. Amine. As the polyol compound, any of the low molecular compound 'oligomer compound and polymer compound can be used. Examples of the aliphatic polyhydric alcohols include, for example, alkanediol having 2 to 8 carbon atoms (for example, ethylene glycol, propylene glycol, butanediol, pentanediol, hexanediol, glycerin monomethyl ether, glycerin). Monoethyl ether, cyclohexanediol, cyclohexanedimethanol, -30-1357505 diethylene glycol, dipropylene glycol, etc.), and alkane having 3 or more hydroxyl groups of 3 to 18 (for example, ' Glycerin, trimethylolethane, trimethylolpropane, hexanetriol, isovaerythritol, diglycerin, diisopentaerythritol 'inositol, etc.). The polyalkylene oxide polyols may be a combination of the same alkylene oxide diols as described above, or may be a combination of different alkylene oxide diols with the same combination of the same alkylene oxide diols. A polyalkylene oxide polyol is preferred. The number of combinations is preferably from 3 to 100, more preferably from 3 to 50. Specifically, for example, polyethylene glycol, polypropylene glycol, poly(ethylene oxide-propylene oxide), or the like can be mentioned. The sugars can be exemplified by the Polymer Society's Polymer Experiments Compilation Committee, "Natural Polymers", Chapter 2 (Kyoritsu Publishing Co., Ltd., 1 984), and Oda Era, "Modern Industrial Chemistry, 22, Natural Industrial Chemistry." II" ((share) Asakura Bookstore, 1 967 issue) and other water-soluble compounds. Among them, a saccharide which does not have a free aldoxime and a ketone group and which does not exhibit a reducing property is preferred. In general, sugars can be classified into trehalose in which glucose, sucrose, and a reducing group are combined, a reducing substance in which a reducing group of a saccharide is combined with a non-saccharide, and a sugar alcohol obtained by adding hydrogen to a saccharide. Etc. All are suitable for use in the present invention. « For example, sucrose, trehalose, alkyl glycoside, phenol glycoside, sucrose glycoside, D, L-arabitol, ribitol, xylitol, D, L - Yamanashi Sugar alcohol, d, L-mannitol, D, L-dirdiol 'D, L-talitol' sweet alcohol, allotitol, reduced maltose, and the like. These saccharides may be used singly or in combination of two or more. The water-soluble polymer has a repeating unit having a hydroxyl group and or a guanamine-based water-soluble polymer such as a natural gum (for example, gum arabic, guaiac gum, tragacanth, etc.), polyvinylpyrrolidine, acrylic acid Dihydroxypropyl-31 - .. 1357505 Ester polymer, cellulose or chitosan and an additional reaction of epoxidized (ethylene oxide or propylene oxide). Among them, a polyhydric alcohol such as an alkylene oxide polyol, a polyalkylene oxide polyol or a sugar alcohol is preferred. The content of the compatibilizing agent is preferably 0.5 to 25% by mass, more preferably 1 to 20% by mass, based on the alkali solution. The alkali solution used in the present invention may contain other additives. Other additives may be mentioned, for example, antifoaming agents, alkali solution stabilizers, pH buffers, preservatives, antibacterial agents, and the like. (Alkaline saponification method) The surface treatment method of the above-mentioned alkali transparent support (cellulose acetate film) can be used by a conventionally known method, in particular, only when one side of the film is subjected to a uniform saponification treatment without mottle The coating method is preferred. The coating method is preferably a coating method known in the art [for example, die coating (extrusion coating, slide coating), roll coating (spin roll coating, reverse roll coating, concave roll coating), and a rod. Coating, blade coating, etc.]. In the saponification treatment, in order to prevent deformation of the film during the treatment, deterioration of the treatment liquid, etc., it is preferable to carry out the treatment at a temperature not exceeding a temperature of 120 ° C, and the temperature is in the range of 10 ° C or more and 1 〇 0 ° C or less. For better, the temperature is particularly good at 2〇~80 degrees. Further, the saponification treatment time is appropriately adjusted and determined in accordance with the lye solution and the treatment temperature, and is preferably carried out in the range of 1 second to 60 seconds. Further, the surface of the transparent support (cellulose acetate film) is subjected to a saponification treatment step using a temperature alkaline solution of at least 10 ° C or higher, and the transparent support (cellulose acetate film) is maintained at a temperature of at least 10 ° C or higher. The step of washing the alkali solution on the transparent support (cellulose acetate film) with 1357050 and the alkali saponification treatment in the above step is preferred. The surface of the transparent support (cellulose acetate film) is subjected to a saponification treatment using an alkali solution at a predetermined temperature, and may be a step of adjusting to a predetermined temperature before application, a step of adjusting the alkali solution to a predetermined temperature, or It is preferred to combine these steps and the like in combination with the step of adjusting to a predetermined temperature before coating. After the saponification reaction, it is preferred to wash the alkali solution and the saponification reaction product from the surface of the film by washing with water, neutralizing with water, or the like. Specifically, for example, the contents described in, for example, International Publication No. '02/46809 booklet can be used. (Organic acid is contained in at least one of an optically anisotropic layer and an oriented film). The organic acid (carboxylic acid, sulfonic acid, phosphonic acid, etc.) used in the present invention contains at least one of the following specific polar groups. Organic acids are preferred. Specific polar groups may be exemplified by -OH, -SH, -NHR, -CONHR, -S02NHR ' -HNC0NHR, or -NHS02NHR, -NHCOR1, -NHSO2R1, -00CNHR1, or -NHCOOR1. Here, R represents a hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group. R1 represents an aliphatic group, an aromatic group or a heterocyclic group. When the organic acid contains a plurality of the above polar groups, the polar groups may be the same or different. In the present invention, the alignment film composition is preferably an organic carboxylic acid compound having at least one of the above polar groups. Thus, it was found that the obtained oriented film was oriented using an orientation means, and an optical compensation sheet obtained by applying an optically oriented -33-1357505 anisotropic layer was applied thereon, and the coated surface was good, which reduced or eliminated white peeling. The improvement effect of optical defects. For the reason, it is considered that the organic carboxylic acid compound having at least one polar group contained in the alignment film can stabilize the film surface hydrogen ion concentration of the alignment film, etc., and influence the orientation state of the liquid crystal molecules when the optically anisotropic layer is applied. The main reason for becoming smaller. Of course, the effect will vary depending on the amount added, and the amount must be adjusted in a timely manner. Preferred polar groups of the present invention include -OH, -SH, -NHR'-CONH2, -S02NH2'-HNCONHR, -NHS02NHR, -NHS02R. Wherein R represents a hydrogen atom, an aliphatic group, an aryl group or a heterocyclic group. R1 represents an aliphatic group, an aryl group or a heterocyclic group. R is an aliphatic group, and the aliphatic group is a linear or branched alkyl group having 1 to 2 carbon atoms (for example, methyl group, ethyl group, propyl group, butyl group, pentyl group, hexyl group, heptyl group,辛基,任基 '癸基, undecyl, dodecyl, thirteen yards, fourteen yards 'five yards, sixteen yards, seventeen yards, octadecyl, ten a linear or branched an alkenyl group having a carbon number of 2 to 22 (for example, a vinyl group, a propylene group, or a butyl group) Alkenyl, pentenyl, hexenyl, octenyl, dodecenyl, tridecenyl, tetradecenyl, hexadecenyl, octadecenyl, icosyl'ticodienyl , butadiene, piperylene, hexadiene, octylene, etc.) 'Alkyl 2 to 22 linear or branched alkynyl (eg, ethynyl, propynyl) , butynyl-hexynyl, octynyl, decynyl, dodecynyl, etc., alicyclic hydroxyl groups having 5 to 22 carbon atoms. Compounds (for example, cyclopentane, cyclopentene, cyclopentadiene) , cyclohexane, cyclohexene, cyclohexadiene, cycloheptane, cycloheptene , cycloheptadiene 'cyclooctane, cyclooctene, cyclooctadiene, naphthalene, etc.) -34- 1357505, etc. is proposed as an aliphatic group, in which a linear chain of carbon numbers 1 to 18 is used. The halo aliphatic group having a carbon number of 3 to 18 is more preferable. The aryl group has a carbon number of 6 to 18 aryl groups (the aryl ring has benzene, naphthalene, dihydrobenzene, biphenyl, etc.). The heterocyclic group may, for example, be a monocyclic compound having at least one of an oxygen atom, a sulfur atom and a nitrogen atom, or a heterocyclic group having a polycyclic ring structure (heterocyclic group, for example, furyl, tetrahydrofuranyl, Pyranyl, pyrrolylmethyl, pyrrolemethyl, pyrazinyl, furyl, morpholinyl, thiol, benzothiophene, etc.). The above-mentioned aliphatic group, aryl group, and heterocyclic group may each have a substituent, and a substituent which may be introduced may be used, and a non-metal atomic group other than hydrogen may be used. Specific examples of the non-metal atomic group include a halogen atom (fluorine atom 'chlorine Atom, bromine atom, iodine atom), cyano group, nitro group, -OR11, -SR11, -COR11, -COOR11' - OCOR11' - S02R"' -NHCONHR11' -N(R12)CORm ' -N(R12)S02Rn , -N(R13)(R14), -CON(R13)(R14), · so2n(r13)(r14), -p( = o)(r15)(r16)'-op( = o)(r15) (r16), -

Si(R17)(R18)(R19), an aliphatic group having 1 to 22 carbon atoms, an alkenyl group having 2 to 18 carbon atoms, an aryl group having 6 to 18 carbon atoms, or a heterocyclic group. These aliphatic groups, aryl groups, heterocyclic groups and the above R are synonymous. R11 represents an aliphatic group having a carbon number of 1 to 2, an aryl group having 6 to 18 carbon atoms, or a heterocyclic group. The aliphatic group of R11 is synonymous with the aliphatic group represented by the above R. The R11 aryl group may be exemplified by the same aryl group exemplified as the substituent which may be introduced into the aliphatic group represented by R described above. The associated aryl group may further have a substituent. The substituent which may be represented by the substituent is the same as the above-mentioned aryl group represented by R and which may be introduced into the aliphatic group. R12 represents a hydrogen atom or the same as the R11 group.

R13 and R14 each independently represent a hydrogen atom or a substance similar to B, and R13 and R14 are bonded to each other, and a ring containing 5 or 6 members of N may be formed. R15 and R16 each independently represent an aliphatic group having a carbon number of 22 and an aryl group having 6 to 14 carbon atoms or -OR11. The family of R15 and R16 is synonymous with the aliphatic group represented by the above R. The aryl group exemplified as the aliphatic group represented by the above R may be the same as those exemplified in R15 and the base. The associated aryl group may also have a substituent. The substituent may be the same as the aryl group exemplified as the substituent represented by R and introduced into the aliphatic group. However, in the associated aryl group, neither -15 is represented by R15 and R16. R17, R18 and R19 each independently represent a carbon number of 1 to 22 or -R2(), and at least one of the substituents represents a hydrocarbon group which is the same as the aliphatic group and the aryl group represented by the above R. Things. -OR2fl - OR11 is expressed as the same content" In the above-mentioned organic acids, R1, 'aliphatic group, aryl group and heterocyclic group and R are the same, the characteristics of the optically anisotropic layer Carboxylate, which has no effect or has a relatively small effect on optical properties, is particularly preferred. An aliphatic carboxylic acid having an organic carboxylic acid compound having at least one polar group of the present invention having a carbon number of Ϊ22 to 22 (excluding carbon atoms of a carboxylic acid), and having a carbon number of exemplified by a group -11 atomic aliphatic fat It can be a hydrocarbon. Hydrocarbon with upper optical acid, there are 6~1 4 -36· 1357505

Tolerance. The organic acid used in the present invention is preferably a ratio of 5% by mass to 10% by mass in the optically anisotropic layer composition. It is preferable to add 〇. 1 to .5 mass%. The organic acid of the present invention is preferably added in an amount of 0.01 to 1. 〇 mass% in the oriented film composition to add 0.02 to 〇.5 mass%. For better. In this range, an optical compensation sheet capable of maintaining sufficient film strength and no optical defects such as white peeling can be obtained. Further, even if a long-length film is continuously produced, it is possible to manufacture a product having very stable properties. (Orientation film) In one state of the present invention, an oriented film-based organic compound (preferably a polymer) is formed by a rubbing treatment, an oblique vapor deposition of an inorganic compound to form a layer having a microgroove, or a use of a blue miller Casting (LB film) is provided by means of accumulating organic compounds (for example, ω-docosalic acid, two octadecylmethylammonium chloride, methyl stearate). Further, it has been known that the orientation film is caused to be oriented by the application of an electric field, the application of a magnetic field, or light irradiation. The alignment film of another state of the present invention is preferably an oriented film formed by coating an organic compound (preferably a polymer) coating liquid. From the viewpoint of the strength of the film itself of the alignment film and the adhesion to the optically anisotropic layer of the lower layer or the upper layer, it is preferred to use a cured polymer film. The alignment film is provided to define the orientation direction of the liquid crystal compound disposed thereon. The method of directional regulation can be exemplified by friction, magnetic field or electric field imparting, light irradiation, and the like. The oriented film provided by the invention can be adapted to the type of liquid crystal cell display type -38-1357505. Most of the rod-like liquid crystal molecules in the liquid crystal cell are substantially vertically oriented display patterns (e.g., VA, OCB, HAN), and have a function of orienting the liquid crystalline molecules of the optically anisotropic layer substantially horizontally. The rod-like liquid crystal molecules in the liquid crystal cells are mostly substantially horizontally oriented display patterns (for example, ST), and have a function of orienting the liquid crystalline molecules of the optically anisotropic layer substantially vertically. Most of the rod-like liquid crystal molecules in the liquid crystal cell are substantially obliquely oriented display patterns (e.g., TN), and have a function of substantially obliquely orienting the liquid crystalline molecules of the optically anisotropic layer. Regarding the type of the specific polymer used in the oriented film of the present invention, there is a literature on the use of an optical compensation sheet of a disc type liquid crystal molecule which is adapted to the above various types of display patterns. The polymer used for the alignment film may be either a polymer which may be crosslinked by itself or a polymer which is crosslinked by a crosslinking agent, and any combination thereof may be used. Examples of the polymer include a compound described in Paragraph No. [0022] in the specification of JP-A-8-3 3 89 1 3, for example. It is preferably a water-soluble polymer (for example, poly(N-methylol acrylamide, carboxymethyl cellulose, gelatin, polyvinyl alcohol, modified polyvinyl alcohol), in which gelatin' polyvinyl alcohol is modified Polyvinyl alcohol is preferred, polyvinyl alcohol and modified polyvinyl alcohol are preferred. The degree of saponification of polyvinyl alcohol is preferably 70 to 100%, and 80 to 100% is more preferably '85 to 95%. Preferably, the degree of polymerization of the polyvinyl alcohol is preferably from 100 to 3,000. The modified base of the modified polyvinyl alcohol is introduced by copolymerization modification, chain shift modification or block polymerization modification. Examples of the group include a hydrophilic group -39-1357505 (carboxyl group, sulfonic acid group, phosphonic acid group, amino group, ammonium group, decylamino group, thiol group, etc.), a carbon number 10-100 hydrocarbon group, a fluorine atom-substituted hydrocarbon group, Sulfide, polymerizable group (unsaturated polymerizable group, epoxy group, aziridine group, etc.), alkoxy group (trialkoxy group, dialkoxy group, monoalkoxy group), etc. Specific examples of the polyvinyl alcohol compound, for example, paragraph number [〇〇74], special opening 00·1〗 2 1 in the specification of Japanese Patent Laid-Open Publication No. 2000- 5 63 1 0 In the specification of the No. 6 publication, paragraphs [0022] to [0145], and the paragraphs [〇〇18] to [〇22] in the specification of JP-A-2002-62426, etc. In the sub-segment, there is a light-oriented group which exhibits a light-orientation function. Such a light-oriented group, for example, as described in "Liquid Crystal, Vol. 3 (1) 3~16 (1999)" by Hasegawa Yasaka, can be cited. The light-directing group has a light-directing group that exhibits a light-orientation function by a photo-quantization reaction having a C=C bond (for example, polythene, sulfhydryl, carbazolyl, oxazolyl, and cinnamon) a light-based quantification reaction with a C = 0 bond to reveal a photo-directing group of a photo-orientation function (for example, having a dimethyl ketone group, a coumarin-based structure, or a fluorenyl aryl group) For example, the above-mentioned paragraphs [〇〇21] in the specification of JP-A-2002-317013, and the like. Polymer using the above oriented film (preferably water-soluble polymer, polyvinyl alcohol or modified polyvinyl alcohol) Examples of the crosslinking agent include a dialdehyde, an N-methylol compound, a dioxane derivative, a compound which acts by an activated carboxyl group, a reactive vinyl compound, an active halogen compound, an isoxazole, and a dialdehyde starch. Further, two or more kinds of crosslinking agents may be used in combination. Specifically, a compound described in paragraphs [0023] to [0024] in the specification of JP-A-2002-62426 may be mentioned. The highly active dialdehyde, -40-1357505 is particularly preferably glutaraldehyde. The crosslinking agent is preferably added in an amount of from 1 to 20% by mass, more preferably from 0.5 to 15% by mass, based on the total amount of the polymer. . The amount of the unreacted crosslinking agent remaining in the oriented film is preferably 1.0% by mass or less, more preferably 0.5% by mass or less. When the amount of the crosslinking agent remaining in the oriented film exceeds 1.0% by mass, sufficient durability cannot be obtained. When such an alignment film is used in a liquid crystal display device, fine lines may occur when used for a long period of time or in a high-temperature and high-humidity environment for a long period of time. The alignment film is coated on the transparent support film by coating a coating liquid containing an organic carboxylic acid compound having the above polymer, a crosslinking agent, and at least one polar group as an oriented film forming composition, and coating the coating liquid Thereafter, the cured film can be formed by heat drying (crosslinking) and orientation treatment. The crosslinking reaction may be carried out at any time after coating on a transparent support as described above. When a water-soluble polymer such as polyvinyl alcohol is used as the oriented film-forming composition, the coating liquid is preferably a mixed solvent of an organic solvent (e.g., methanol) having a defoaming action and water. The ratio of its mass ratio is water: methanol 0: 100~99: 1 is better, with 〇: 100~91: 9 is better. Thereby, the occurrence of foam can be suppressed, and defects of the alignment film and the surface of the optically anisotropic layer can be reduced. The coating method of the orientation coating is preferably a spin coating method, a dip coating method, a curtain flow coating method, an extrusion coating method, a bar coating method, and a roll coating method. The stick coating method is particularly preferred. Further, the film thickness after drying is preferably 0.1. Heating and drying can be carried out at 20 ° C ~ 11 ° ° C, in order to form a sufficient $ joint, preferably in the range of 60 ° C ~ 100 ° C, 80 ° C ~ 100 ° C is particularly good" drying time can be carried out 1 minute to 3 6 hours, with 1 minute to 30 minutes. Further, the coating film is coated on the support by coating, drying, orienting means, etc., and the coating film containing the composition for forming an oriented film of the present invention is oriented, and then the coating film is applied to the coating liquid for an optically anisotropic layer. The surface is preferably maintained in the range of pH 2.0 to 6.9. Further, it is more preferably in the range of pH 2.5 to 5.0. Further, when the coating liquid for an optically anisotropic layer is applied, the pH fluctuation amplitude OpH on the surface of the alignment film in the coating direction is preferably in the range of ±0.30. It is more preferable to have an OpH of ±0.15. An optical compensation sheet obtained by applying an optically anisotropic layer in this range is preferable because optical defects are remarkably reduced. The method for measuring the pH of the surface of the oriented film is to leave the sample after the application of the coating film to a temperature of 25 ° C / humidity of 65% RH for one day, and then load 10 ml of pure 7_K under a nitrogen atmosphere to rapidly read the pH. The pH is calculated. To specifically determine the pH of the surface of the oriented film of the present invention and to control the pH in the direction of the coating web, the coating can be carried out by the above-described bar coating method. Further, it is effective to adjust the air volume and the wind direction by using the drying temperature and the drying speed of the film surface. The oriented film system is disposed on the transparent support or on the above-mentioned primer layer. The aligning film can be obtained by subjecting the surface to a rubbing treatment after crosslinking the polymer layer as described above. The above rubbing treatment can be applied to a processing method widely used in the liquid crystal liquid crystal directional processing step. That is, paper or wire, felt cloth, rubber or nylon, polyester fiber or the like can be used to obtain a direction by rubbing in a certain direction. In general, the operation is carried out by using a cloth or the like for several times, and the cloth is uniformly planted with fibers of uniform length and thickness. Further, when light is used for light directing, the light source of the light irradiation device, -42-1357505, can use an ultrahigh pressure mercury lamp, a xenon lamp, a spotlight, a laser, etc., and use a light-light compound to perform light directing combined light source and polarized light. The film (through the partial film) illuminates the light directing film with ultraviolet light as a linear polarized light. The polarizing film mainly uses extended dyed PVA. For example, a material described in Japanese Laid-Open Patent Publication No. Hei 10-90684 can be used. The thickness of the orientation is preferably from 〇1 to 5em, more preferably from 0.05 to m. (Optically Anisotropic Layer) The optically anisotropic layer of the present invention is formed of a liquid crystal molecule. The liquid crystal molecules are preferably rod-like liquid crystal molecules or disc-type liquid crystal molecules, and it is particularly preferable to use disc-type liquid crystal molecules. As the rod-like liquid crystal molecules, methylimine, oxidized azo, cyanobiphenyl, cyanophenyl ester, benzoic acid ester, phenylcyclohexanecarboxylic acid phenyl ester, cyanophenylcyclohexane can be used. Alkane, cyano-substituted phenylpyrimidines, alkoxy-substituted phenylpyrimidines, phenylalkanes, diphenylacetylenes and alkenylcyclohexylbenzenes are preferred. Such a low molecular liquid crystal compound preferably has a polymerizable group in the molecule (for example, the paragraph number [0016] in the specification of JP-A-2000-3 049 32. The disk i-type liquid crystal molecule can be exemplified. A wide variety of literature (C. Destrade et al., Mol. Crysr. L i g. Cryst., voL, 71, pagelll (198 1); Japanese Chemical Society, Quarterly Chemistry, No. 22, Liquid Crystal Chemistry , Chapter 5, Chapter 10, Section 2 (1994); Β Kohne et al., Angew. Chem. Soc. Chem. Comm., page 1794 (1985); J. Zhang et al., J. Am. Chem. Soc., vol. 116, page 265 5 (1 994)) The above-mentioned compound. The polymerization of the disc-type liquid crystalline molecule is described in Japanese Patent Publication No. Hei 8-273. 1357505 is a method in which a discotic liquid crystal molecule is immobilized by polymerization, and it is necessary to bond a polymerizable group as a substituent to a disc-shaped center of a disc-type liquid crystalline molecule. A disc-shaped center and a polymerizable group, It is preferable to bond through the linking group. Thus, even in the reaction state, the orientation state can be maintained. For example, there is a Japanese special opening '2000-1 5 5 2 1 6 In the specification of the publication, paragraphs [0151] to [0168], etc. Further, if the rod-shaped liquid crystal molecules of the STN type are twist-oriented liquid crystal cells, for optical compensation, the disc is also made. The twist orientation of the liquid crystal molecules is preferred. When the asymmetric carbon atom is introduced into the above-mentioned linking group, the disc-shaped liquid crystalline molecules can be twisted and oriented into a spiral shape. Further, in the optically anisotropic layer, the addition of an asymmetric carbon atom is shown. When the optically active compound (for the palmier isomer), the disc-shaped liquid crystalline molecules can be twisted and oriented in a spiral shape. It is also possible to use two kinds of disc-type liquid crystalline molecules in combination. For example, as described above A polymerizable disc-type liquid crystal molecule and a non-polymerizable disc-type liquid crystal molecule are used in combination. The non-polymerizable disc-type liquid crystal molecule is obtained by changing the polymerizable group of the polymerizable disc-type liquid crystal molecule to hydrogen. The atom or the alkyl compound is preferable, and the non-polymerizable disc-type liquid crystal molecule is, for example, a compound described in Japanese Patent Laid-Open No. 264 00 83. Other constituents of the layer) together with the above-mentioned liquid crystal molecules, a plasticizer, a surfactant, a polymerizable monomer, a polymer, etc., can be used to improve the uniformity of the coating film, the film strength, the orientation of the liquid crystal molecules, and the like. It is compatible with the liquid crystal molecule, and it is preferable to impart a change in the tilt angle of the liquid crystal molecule or not to hinder the orientation. The poly-combination monomer may be a free radical polymerizable or a cation-44- 1357505 Polymeric compound. It is preferable to use a polyfunctional radical polymerizable monomer and to have a copolymerization property with the above-mentioned polymerizable liquid crystal compound. For example, the paragraphs [0018] to [0 02 0] in the specification of Japanese Patent No. 2002-296423. The amount of the compound to be added is preferably in the range of from 1 to 50% by mass based on the discotic liquid crystalline molecule, and preferably in the range of from 5 to 30% by mass. The surfactant can be exemplified by a conventionally known compound, and a fluorine compound is particularly preferred. Specifically, the compound described in Paragraph No. [〇〇28] to [〇〇56] in the specification of Japanese Patent Laid-Open Publication No. Hei 2 No. _330725 can be cited. The polymer used together with the disc-type liquid crystalline molecule can provide a change in the tilt angle of the disc-type liquid crystalline molecule. An example of the polymer is a cellulose ester. A preferred example of the cellulose ester is the one described in paragraph number [0 1 7 8] in the specification of JP-A-2000-1505, 196, in order to prevent the orientation of liquid crystal molecules from being impeded. The amount of the polymer to be added is preferably in the range of 0.1 to 10% by mass, more preferably in the range of 0.1 to 3% by mass, based on the liquid crystal compound. The disc type liquid crystal molecule nematic liquid crystal phase-solid phase transfer temperature is preferably 70 to 300 ° C, more preferably 70 to 170 ° C. The optically anisotropic layer-oriented alignment film is coated with a liquid crystal molecule or a polymerization initiator described below, an optional additive or the like (for example, a plasticizer, a polymerizable monomer, a surfactant, a cellulose ester, 1 Formed by a coating liquid of 3,5-tris-D Qin compound and palmo isomer. It is preferred to use a solvent for the coating liquid to use an organic solvent. Examples of organic solvents which may be mentioned are formamide (for example, N,N-dimethylformamidine-45-1357505 amine), submilling (for example, dimethyl submilling), and heterocyclic compounds (for example, pyridine). , a hydrocarbon (for example, benzene, hexane), an alkyl halide (for example, chloroform, dichloromethane), an ester (for example, methyl acetate, butyl acetate), a ketone (for example, acetone, methyl ethyl ketone) And an ether (for example, tetrahydrofuran, 1,2-dimethoxyethane) or the like. Among them, an alkyl halide and a ketone are preferred, and two or more organic solvents may be used in combination. The application of the coating liquid can be carried out by a known method (for example, an extrusion coating method, a direct concave roll coating method, an inverse concave roll coating method, or a die coating method). (Fixation of liquid crystal molecular orientation state) The liquid crystal molecules are preferably in a substantially constant direction, and are preferably fixed in a solid state, and it is preferable to fix liquid crystal molecules by a polymerization reaction. The polymerizer should contain a thermal polymerization reaction using a thermal polymerization initiator, and a photopolymerization reaction using a photopolymerization initiator. Photopolymerization is preferred. Examples of the photopolymerization initiator include α-carbonyl compounds (described in each specification of U.S. Patent No. 2,276,661, U.S. Patent No. 2,367,670), acetoin (described in the specification of U.S. Patent No. 2,448,828), and α-carbonyl. Aromatic auxin compounds (described in U.S. Patent No. 2,722,512), polynuclear benzophenone compounds (described in U.S. Patent No. 3,046,127, U.S. Patent No. 2,591,758), triaryl imidazole dimers and guanidine-aminobenzenes a combination of a ketone (described in the specification of U.S. Patent No. 3,549,367), an acridine, and a phenazine compound (Japanese Patent Laid-Open No. 60-10056-67), US Patent 4 2 3 9 8 5 〇 And the oxazole compound (described in the specification of US Pat. No. 4,221,297). -46 - 1357505 The amount of the photopolymerization initiator used is preferably 0.01 to 20% by weight based on the solid content of the coating liquid, 0.5 to 5% by weight is more preferable. In order to irradiate the disc-type liquid crystalline molecules with light for polymerization, it is preferred to use ultraviolet rays. The irradiation energy is preferably 20 mJ/cm 2 to 50 J/cm 2 ·, and 1 〇〇 to 8 G0 mj / Cm2 is better for promotion The polymerization may be carried out under heating, and the thickness of the optically anisotropic layer is preferably 0.1 to 10 μm, more preferably 0.5 to 5/zm, and most preferably 0.7 to 5/zm. According to different types of liquid crystal cells, in order to obtain a highly optically anisotropic layer, the optically anisotropic layer is thicker (becomes 3 to 10/zm). The orientation state of the liquid crystalline molecules in the optically isotropic layer, as described above In the same manner, it is determined according to the type of display pattern of the liquid crystal cell. The orientation of the liquid crystal molecules may be 'specifically' by the kind of the liquid crystal molecule, the kind of the alignment film, and the additive in the optically anisotropic layer (for example, Controlled by the use of a plasticizer, a polymer, or a surfactant. The optical compensation sheet of the present invention can be manufactured as described above. The optical compensation sheet of the present invention has a transparent support for imparting adhesion in advance as described above. a layered structure in which the alignment film and the optically anisotropic layer are sequentially laminated. The optical compensation sheet of the present invention can be used as a protective thin film of a polarizing plate by being bonded to a polarizing plate. The polarizing plate and its manufacture will be described in detail below. <Polarizing plate> The polarizing plate is usually a polarizing film and a transparent protective film on both sides thereof, which is made of -47-1357505. The transparent protective film means light. The transmittance of the protective film is generally 80% or more, generally using a cellulose film, and the cellulose acetate film is preferably formed by the above method in a transparent support. The thickness of the transparent protective film is 20 to 2 0 0 30 More preferably, it is preferably 30 to 80/zm. The present invention is a transparent protective film which is coated with the optical compensation sheet of the present invention. In other words, in the polarizing plate of the present invention, the film "polarizing film" and the optical compensation sheet are laminated in this order, and a high-level liquid crystal display device having characteristics can be obtained when the polarizing plate is mounted on the liquid crystal display device. (Surface treatment of optical compensation sheet) An optical compensation sheet is used in place of the adhesion problem between the transparent protective sheet of the polarizing plate and the polarizing film. In the present invention, the polarizing film side of the most compensation sheet is subjected to surface treatment to improve adhesion of the photo film. The surface treatment may be exemplified by corona discharge treatment, flame treatment, ultraviolet irradiation treatment, odor or alkali treatment. Corona discharge treatment, luminescence discharge treatment, flame treatment, ozone treatment, acid treatment or alkali treatment. The above-mentioned public technical number 2001-1745, pages 30 to 31, p is preferably treated with alkali, and may be mentioned. There is the same content as the above film. (Polarizing film) (The polarizing film used in the present invention is usually an Optiv a coating type polarizing film, or an adhesive and iodine or two colors. Transparent cellulose is preferred. The solvent coating V m is Preferably, in place of the polarizing plate, it is protected according to transparency. When the optical film is excellent according to the present invention, the light is good by optical compensation sheet and electro-optical treatment, luminescent oxygen treatment, acid treatment, ultraviolet irradiation method, for example, In the present invention, it is preferable to use a polarizing film of -48 - 1357505 which is represented by the pigment of the I nc _ represented by the lining treatment. The iodine and the dichroic pigment of the polarizing film are oriented in the adhesive. It shows the biasing performance. Iodine and dichroic pigments are oriented along the adhesive, or dichroic pigments such as liquid crystals can be oriented in one direction by self-organization. Currently, commercially available polarizing films It is prepared by immersing the extended polymer in the iodine or dichroic dye solution in the bath, and iodine or dichroic pigment in the adhesive to make the adhesive. Commercially available polarizing film, From the surface of the polymer 4 / / m degree (two A total of 8 / / m) iodine or dichroic pigment distribution, in order to fully obtain polarizing properties, it is necessary to at least l 〇 # m thickness. Permeability can be obtained by the concentration of iodine or dichroic pigment solution, bath Temperature and impregnation time are controlled. As mentioned above, the lower limit of the thickness of the adhesive is preferably ΙΟμιη. The upper limit of the thickness is as thin as possible from the viewpoint of light leakage of the liquid crystal display device. Currently, the commercially available polarizing plate is about 30/zm or less. Preferably, it is preferably 25/m or less, more preferably 2 〇vm or less. When the temperature is 20//m or less, the light leakage phenomenon is not observed with a 17-inch liquid crystal display device. The adhesive of the cross-linked polarizing film is also acceptable. The cross-linked adhesive may be a polymer which may be cross-linked by itself. A polymer having a functional group or an adhesive obtained by introducing a functional group into the polymer may be changed by light, heat or pH. The adhesive reacts to form a polarizing film. Further, a cross-linking structure may be introduced into the polymer by using a crosslinking agent. Cross-linking is generally carried out by coating a coating liquid containing a polymer or a mixture of a polymer and a crosslinking agent in a transparent layer. After the support body, heating In the final product stage of 1357550, in order to ensure the durability is as good as possible, cross-linking treatment can be carried out at any stage before the final polarizing plate is obtained. The adhesive of the polarizing film can use its own cross-linking possible polymer or The polymer is crosslinked by a crosslinking agent. Examples of the polymer include the above-mentioned polymer of the alignment film. Polyvinyl alcohol and modified polyvinyl alcohol are preferred. The polyvinyl alcohol is described in each of the publications of Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. The amount of the crosslinking agent added is preferably 0.1 to 20% by mass based on the adhesive. The orientation of the polarizing element and the moist heat resistance of the polarizing film become good. The oriented film contains a certain amount of unreacted crosslinking agent even after the crosslinking reaction. However, the amount of the remaining crosslinking agent is preferably 1.% by mass or less in the oriented film, and more preferably 0.5% by mass or less. As described above, when the polarizing film is incorporated in the liquid crystal display device, the polarization degree does not decrease even if it is used for a long period of time or in a high-temperature and high-humidity environment for a long period of time. As the crosslinking agent, there may be mentioned a description of the reissue of the U.S. Patent No. 2 3 2 9 7 . Further, a boron compound (for example, boric acid or borax) may be used as the crosslinking agent. As the dichroic dye, an azo-based dye, an anthraquinone dye, a pyrazole-W-ketone dye, a triphenylmethane-based dye, a quinoline-based dye, an oxazine-based dye, a thiazide-based dye, or an oxime-based dye can be used. . The dichroic dye is preferably water-soluble, and the dichroic dye preferably has a hydrophilic substituent (e.g., a sulfo group, an amino group, or a hydroxyl group). Examples of the dichroic dye include, for example, the compounds described in the Inventor's Association, No. 2001-1745, and 58 pages (issued on March 15, 2001). In order to improve the contrast of the liquid crystal display device, the transmittance of the polarizing plate is preferably higher, and the polarizing degree is also higher. The transmittance of the polarizing plate is preferably in the range of 35 to 50% in the range of 35 to 50% of light having a wavelength of 55 Onm. The range of 40 to 50% is optimal. The degree of polarization, at a wavelength of 550 nm, is preferably in the range of 90 to 100%, more preferably in the range of 95 to 100%, and is preferably in the range of 99 to 100%. When the adhesive is interposed between the polarizing film and the optical compensation sheet, the adhesive may be a polyvinyl alcohol-based resin (containing ethylene sulfonate, sulfonic acid group, carboxyl group, and polyethylene modified with a hydroxyl group). Alcohol) and an aqueous solution of a boron compound. Polyvinyl alcohol is preferred. The thickness of the adhesive is preferably in the range of 0.01 to 10/m after drying, and particularly preferably in the range of 0_05 to 5/zm. (Manufacturing of polarizing plate) The polarizing film extends from the viewpoint of the yield to the longitudinal direction (MD direction) of the polarizing film at an inclination of 10 to 80 degrees (extension method) or after rubbing (Friction method), it is preferred to dye with iodine or a dichroic dye. The inclination angle is preferably extended by an angle formed by the transmission axis of two polarizing plates (which are bonded to the liquid crystal cell side constituting the LCD) and the longitudinal or lateral direction of the liquid crystal cell. The usual tilt angle is 45 degrees. However, recently, transmissive, reflective, and transflective LCDs have been developed which are not necessarily 45 degrees, and the extending direction can be arbitrarily adjusted to match the LCD design. In the stretching method, the stretching ratio is preferably 2.5 to 30.0 times, and more preferably 3.0 to 1357505 10.0 times. The extension may be dry extension in air or may be impregnated in water to effect wet extension. The stretching ratio of the dry stretching is preferably from 2.5 to 5.0 times, and the stretching ratio of the wet stretching is preferably from 3.0 to 1.0 times. The extension step can also be extended in fractions with oblique extension. By fractional times, even the high magnification extension can be extended evenly. It is also possible to carry out a plurality of extensions in the transverse or longitudinal direction (to prevent the degree of shrinkage in the web direction) before the oblique extension. The extension can be carried out using a step of performing different tenter extensions on the right and left sides during the two-axis extension. The above biaxial stretching is the same as that performed in a conventional film forming process. Since the two-axis extension is extended by using different speeds at right and left, it is necessary to make the thickness of the adhesive film before stretching different. The cast film can be made to have a different flow rate of the adhesive solution by attaching a taper to the die. As described above, an adhesive which is obliquely extended at 10 to 8 turns with respect to the MD direction of the polarizing film can be produced. The rubbing method can be applied to a rubbing treatment method widely used in LCD liquid crystal directional processing. That is, the surface of the film is rubbed at an orientation using paper, metal wire, felt cloth, rubber or nylon, polyester fiber or the like to obtain orientation. In general, the system is rubbed several times by using a cloth or the like, and the cloth is uniformly planted with fibers of uniform length and thickness. It is preferable to use a friction roller having a roundness, a cylinder degree, and a swing (eccentricity) of 30 μm or less in the implementation of the roller itself. The lap of the film to the rubbing roll is preferably from 0.1 to 90 degrees. However, it is also possible to perform a stable rubbing treatment by winding at 360 degrees or more as described in Japanese Laid-Open Patent Publication No. Hei 8-160430. For the rubbing treatment of a long-sized film, it is preferable to carry the film at a speed of 1 to 100 m/mi η under a certain tension of -52 to 1357505 using a conveying device. In order to set an arbitrary rubbing angle, the rubbing roller preferably rotates in a direction relative to the film so as to be freely rotatable in the horizontal direction. It is preferable to select an appropriate friction angle in the range of 〇~60 degrees. When used in a liquid crystal display device, it is preferably 40 to 50 degrees and particularly preferably 45 degrees. It is preferable that the transparent protective film is disposed on the surface of the polarizing film opposite to the optically anisotropic layer. (Arranged as optical compensation sheet/polarizing film/transparent protective film) The transparent protective film is preferably provided with an anti-staining and anti-scratch anti-reflection film on the outermost surface. As the antireflection film, what has been known in the past can be used. As described above, the polarizing plate of the present invention can be produced. The optical compensation sheet of the present invention or the polarizing plate using the optical compensation sheet is advantageous for use in a liquid crystal display device, particularly a transmissive liquid crystal display device. Hereinafter, a liquid crystal display device, particularly a transmissive liquid crystal display device, and its manufacture will be described in detail. (Liquid Crystal Display Device) The transmissive liquid crystal display device of the present invention comprises a liquid crystal cell and a two-plate polarizing plate disposed on both sides thereof. The liquid crystal cell is loaded with liquid crystal between the electrode substrates of the two. The optical compensation sheet is provided with a plate between the liquid crystal cell and one side of the polarizing plate, or two between the liquid crystal cell and the polarizing plates of both sides. Preferred embodiments of the liquid crystal type optically anisotropic layer will be described below. In the preferred embodiment of each of the liquid crystal type optically anisotropic layers, the -53-1357505 optical compensation sheet of the present invention or the polarizing plate using the optical compensation sheet is advantageous for optical compensation. (TN type liquid crystal display device) The TN type liquid crystal crystal light is most widely used as a color TFT liquid crystal display device as described in most documents. In the black of the TN type, the orientation state in the liquid crystal cell is displayed, and the rod-like liquid crystal molecules stand in the center of the wafer. The rod-like liquid crystal molecules are placed in an oriented state on the wafer substrate. (OCB type liquid crystal display device) The OCB type liquid crystal cell bending alignment type, in which the upper and lower rod-shaped liquid crystal molecules of the liquid crystal cell are substantially oriented (symmetrically) in the reverse direction. The liquid crystal display device using the curved alignment type liquid crystal cell can be exemplified by the devices disclosed in the specification of U.S. Patent No. 4,587,8, the disclosure of which is incorporated herein by reference. Since the rod-like liquid crystalline molecules are symmetrically oriented at the upper and lower portions of the liquid crystal cell, the curved alignment type liquid crystal cell has its own optical compensation function. Therefore, the liquid crystal type is also called OCB (Optically Compensatory Bend). 0 CB type liquid crystal cell is also like TN, showing the orientation state in the liquid crystal cell in black, standing in the center of the crystal cell in the center of the crystal cell, and the rod-like liquid crystal molecules appear lying on the edge of the crystal substrate. Orientation status. (VA type liquid crystal display device) In the VA type liquid crystal cell, the rod-like liquid crystalline molecules are substantially vertically oriented when no voltage is applied. The t VA type liquid crystal cell can be exemplified by (1) the rod-like liquid crystal molecules are substantially vertically oriented when no voltage is applied, and the rod-like liquid crystal molecules - 54 - 1357505 are substantially horizontally oriented in the narrow VA type liquid crystal when voltage is applied. (2) Liquid crystal cell (SID97, Digest of tech. PaperS) in which the type is multi-domain (MVA type) in order to increase the viewing angle. 28 (1 997) 845), (3) When the voltage is not applied, the rod-like liquid crystalline molecules are substantially twisted in a multi-domain orientation, and when the voltage is applied, the rod-like liquid crystalline molecules are substantially horizontally oriented (η-ASM type). The liquid crystal type (described in the Japanese Liquid Crystal Symposium, Proceedings 58 to 59 (1998)) and (4) the SURVAIVAL type of liquid crystal cell (published in LCD International 98). (Other liquid crystal display device) The liquid crystal display device of the ECB type and the STN type is compensated by the same manner as described above. (Examples) Hereinafter, the optical compensation sheet, the polarizing plate, and the liquid crystal display device of the present invention will be described. Specific embodiments, but the invention is not limited thereto. (Example 1) (Production of a transparent support) The composition was placed in a mixing tank, and the mixture was stirred while heating to dissolve the components, thereby preparing a cellulose acetate solution. &lt;Composition of Cellulose Acetate Solution&gt; 100 parts by weight of cellulose acetate having a degree of acetylation of 100.9% by weight of triphenyl phosphate (plasticizer). 7.8 parts by mass of diphenyl diphenyl phosphate (plasticizer) 3.9 parts by mass of dichloro Methane (first solvent) 300 parts by mass of methanol (second solvent) 45 parts by mass of dye (360FP manufactured by Suseifa Ink Co., Ltd.) 0.0009 parts by mass -55- 1357505 Putting a retarding agent in another mixing tank The mass fraction, 80 parts by mass of dichloromethane, and 20 parts by mass of methanol were stirred while heating to prepare a retarding agent solution. In 64 parts by mass of the cellulose acetate solution having the above composition, 36 parts by mass of the retardation enhancer solution and 1.1 parts by weight of the cerium oxide microparticles (R97 2 manufactured by Yaruglu) were sufficiently stirred and mixed. miscellaneous. The amount of the retardation agent added was 5.0 parts by mass based on 1 part by mass of the cellulose acetate. Further, the amount of cerium oxide added was 0.15 parts by mass based on 100 parts by mass of the cellulose acetate. [Chemical Formula 1] Blocking Rising Agent

The obtained doping was carried out by using a belt casting machine, and the film surface temperature of the upper surface was 4 (TC, dried for 1 minute, and then dried, and dried air was used to prepare a cellulose acetate film having a residual solvent content of 0.3% by mass. (CA-1) (thickness: 109# m) ° For the cellulose acetate film (CA-1) produced, the retardation 测定 is measured, and the retardation 値Rth of the thickness direction is 85 nm, and the in-plane retardation 値Re is 7 nm (Saponification treatment and formation of oriented film) On a cellulose acetate film (CA-1), a dielectric heating tube having a temperature of 60 ° C was used, and the surface temperature of the film was raised to 40 ° C, and then a rod was used. The coater was coated with an alkali solution (S-1) having the composition shown below at a coating amount of 15 cc/m 2 , and was manufactured by Noli Da Ke Ke Ni Ni Mi Te Luo (transliteration) at a temperature of 1 l ° ° C. Vapor 1575505 In the far-infrared heater, after 15 seconds of residence, use the same bar coater to apply pure water 3 CC/m2. The film temperature at this time is 40 ° C. Then use a fountain coater for water washing and use. After the air knife is removed by repeated three times of removal of moisture, it is left to dry in a drying zone of 7 ° C for 5 seconds. S-1) Composition &gt; Sodium hydroxide 8.55 mass% Water 23.235 mass% Isopropanol 54.20 mass% Surfactant (Kl: C14H29O(CH2CH2O)20H 1.0% by mass Propylene glycol 13.0% by mass Defoamer SAFINOLDF110D (Japan) Chemical industry (stock) production 0.015 mass ° / 〇 Next, in the long direction of the cellulose acetate film (CA-1), rubbing treatment. On the surface treated film, using a bar coater at 28ml / m2 coating amount The alignment film coating liquid having the following composition was applied, and dried by a warm air of 60 ° C for 60 seconds and a temperature of 90 ° C for 150 seconds. <Orientation film coating liquid> The following modified polyethylene II Alcohol 20% by mass Water 360% by mass Methanol 120% by mass Glutaraldehyde 0.5% by mass [Chemical formula] Modified polyethylene glycol-57- 1357505 OH 9 0 1c=o CHa

(CH2) 2-〇_c〇-C=CH2 CH, (Formation of optically anisotropic layer) A disc-shaped liquid crystal coating liquid (DA-1) having the following composition was applied by a wire coating machine of #4, After heating at 125 ° C for 3 minutes in a high temperature bath to orient the disc-shaped liquid crystalline molecules, the UV was irradiated with a high-pressure mercury lamp at 500 ° C/cm 2 , and cooled to room temperature to prepare an optical compensation sheet (KS-1). &lt;Disc type liquid crystal coating liquid (DA-1)&gt; The following disc type liquid crystal DLC-A 9.1% by mass Ethylene oxide modified trimethylol propyl acrylate (V#360, Osaka has 0.9 mass) % Machine Chemistry (Shares) Cellulose Acetate (CAB551-0.2 Eastman Chemical) 0.2% by mass Cellulose acetate butyrate (CAB531-1 Eastman Chemical) 0.05% by mass IRUGAKUA -907 3.0% by mass of Kuraray-DETX (manufactured by Sakamoto Chemical Co., Ltd.) 0.1% by mass of citric acid half ester (the following organic acid (A-1)) 1.0% by mass methyl ethyl ketone 25.9% by mass [Chemical formula 3]

LCD DLC-A 1357505

Organic Acid (A-1) ch2cooc2h5

HO-C-GOOH

I CH2C00C2H5 When the tilt angle is measured by the crystal rotation method, the angle (inclination angle) between the disk surface of the disc-type liquid crystalline molecule and the plane of the glass substrate increases from 3 degrees to 80 degrees from the film surface toward the optical air interface. Mixed orientation), the average tilt angle is about 40 degrees, and the mixed orientation is known. The thickness of the optically anisotropic layer was 1.8 #m. When the retardation enthalpy of the optical compensation sheet (KS-1) was measured using an elliptical symmetry meter (manufactured by JASCO Corporation, m-150), the in-plane retardation Re (Re) was 33 nm. The optical compensation sheet (KS-1) was sandwiched between crossed polarizers (CROSS NIC OL) to confirm the surface state (linear mottle, poor orientation). Further, the optical compensation sheet (KS-1) was attached to a glass plate using an acrylic adhesive, and stored at 90 ° C for 24 hours, and the acrylic adhesive was used in the same manner as the assembled liquid crystal display device, the glass plate, and the liquid crystal cell. The optical compensation sheet was peeled off from the glass sheet in the vertical direction, and the peeling residual portion was examined to evaluate the adhesion. The evaluation was carried out at a level of 5 from 〇 (significantly having a peeling residue) to y being completely detached. The results are shown in Table 1 (Example 2) • 59-1357505 (manufacture of transparent support) The doping obtained in Example 1 was carried out using a belt casting machine. When the film surface temperature of the upper surface was 40 ° C, it was dried for 1 minute, and after stripping, the air was dried to obtain cellulose acetate (CA-2) (thickness 00 &quot; m) having a residual solvent content of 0.3% by mass. Regarding the cellulose acetate film (CA-2) produced, the retardation 方向Rth of the formed thickness direction was measured to be 43 nm, and the in-plane retardation 値Re was 4 (saponification treatment and formation of oriented film) in the acetate fiber. On the plain film (CA-2), it was subjected to thermal shock at 100 °C, heated to 45 °C, and then coated with a coating agent of 14 cc/m2 at 25 °C using a bar coater. The solution (S-2) was coated with pure water of 5 cc/m2 using the same bar coater over 13 seconds. The film temperature at this time was j °C. Next, a 1 000 cc/m2 pure coating was used for water washing using an extrusion coater. After 5 seconds, the air knife was used to collide with the air knife of 100 m/sec. This was washed with an extrusion coater and separated by an empty knife. After repeating twice, it was left to stand in a drying zone of 80 ° C for 1 second. Thereafter, the oriented film was applied in the same manner as in the example, and after drying, the rubbing treatment was carried out: using a film 値, nm® wind rushing, and then, S 4 5 water, water was removed by water to dry dry &lt;alkali Solution (S-2) Composition&gt; Sodium hydroxide 6.5% by mass Water 55.49% by mass n-propanol.·37.0% by mass Surfactant (K-2) 1.0% by mass (K-2: ethylenediamine ring) Oxygen ethane additive) Antifoaming agent 0.01% by mass S AFINOL DF11 OD (manufactured by Nissin Chemical Industry Co., Ltd. 1357550 (formation of optically anisotropic layer). Disc type liquid crystal coating liquid (DA) used in Example 1. -1), except for using 1.2 parts by mass of the following organic acid (A-2) in place of 1.0 part by mass of the organic acid (Α·1), and the coating liquid (DA-1)-like coating liquid (DA- 2) Apply the coating liquid (DA-2) using a #4 metal line coater, heat it at 125 ° C for 3 minutes in a high temperature bath, orient the disc-type liquid crystalline molecules, and use a high pressure mercury lamp to 5 〇 OJ. /cm2 was irradiated with UV, and cooled to room temperature to prepare an optical compensation sheet (KS-2).

[Chemical Formula 5] Organic Acid (A-2)

HO

pCO(CH2)3COOH

OCO(CH2)3C〇OH When the tilt angle is measured by the crystal rotation method, the angle (inclination angle) between the disk surface of the disc-type liquid crystalline molecule and the plane of the glass substrate is 3 degrees from the film surface toward the optical air interface. Increasing to 80 degrees (mixed orientation), the average tilt angle is about 40 degrees 'to know the hybrid orientation. The thickness of the optically anisotropic layer is 1 · 8 // m. When the retardation 光学 of the optical compensation sheet (KS_2) was measured along the rubbing direction of the orientation film, the in-plane retardation R(R e) was 3 3 n m. The optical compensation sheet (κ S - 2) was sandwiched between CROSS NICOL polarizing plates to confirm the surface state (linear mottle, poor orientation, optical compensation sheet (KS - 2) system and examples 1 The same adhesion evaluation was carried out. (Example 3) (Manufacturing of transparent support) • 61-1357505 The doping obtained in Example 1 was cast using a belt casting machine. At °c, it was dried for 1 minute, and after drying, dry air was used to prepare a cellulose acetate film (CA-3) (thickness 40 // m) having a residual solvent content of 0.3% by mass. 値, ϊΐΐϊι» The cellulose acetate film (CA-3) was measured for its retardation thickness direction and the enthalpy Rth was 32 nm, and the in-plane retardation 値Re was 3 (saponification treatment and formation of oriented film) on the cellulose acetate film ( On the CA-3), the same saponification treatment as in Example 1 was carried out except that the following content solution (S-3) was used. &lt;Soda solution (S-3) composition &gt; 4.0% by mass 4 2.7% by mass 4 0.0% by mass 1 2.0% by mass: 1 · 3 mass% sodium hydroxide water methyl cellulolytic tetraethylene glycol surfactant (K-3 (K-3 C9H19Ph(0CH2CH2)3S03Na(Ph-based phenylene)) Defoamer PURURONIKU 0. 1% by mass TR70 (made by Asahi Denki Kogyo Co., Ltd.) After the remainder, except for the orientation film coating using the following composition The alignment film was applied in the same manner as in Example 1 and dried, and then subjected to a rubbing treatment of 20% by mass, 360% by mass, 120% by mass, and 0.5% by mass. &lt;Orientation film coating liquid&gt; The following modified polyvinyl alcohol water methanol glutaraldehyde -62- 1357505 [Chemical Formula 6] Modified polyvinyl alcohol hydrazine H ^=〇〇COCH3 0c〇NH(CH 2 ) 2 OCOC=CH 2 nh-0hcooh^-hQ&gt; ch3 (formation of optically anisotropic layer) In Example 1 The disc-type liquid crystal coating liquid (DA-1) to be used is the same as the coating liquid (DA-1) except that 1.0 part by mass of the following organic acid (A-3) is used instead of the organic acid (Ai). The coating liquid (DA-3) was coated with the coating liquid (DA-3) using a wire coating machine of #4, and heated at 125 ° C for 3 minutes in a high temperature bath. After the disc-shaped liquid crystalline molecules were oriented, high pressure was applied. The mercury lamp is irradiated with UV at 5 〇 CU/Cm2 and cooled to room temperature to prepare an optical compensation sheet (KS_3) '[Chemical Formula 7] Organic Acid (A-3) ch2cooc3h7

HO-CH

COOH When the tilt angle is measured by the crystal rotation method, the disc surface of the disc-type liquid crystal molecule forms an angle (inclination angle) with the plane of the glass substrate, and increases from 3 degrees to 8 degrees from the film surface toward the optical air interface. (Mixed orientation), the average tilt angle is about 40 degrees, and the mixed orientation is known. The thickness of the optically anisotropic layer was 1·8 in m. When the friction direction of the orientation film is measured, the retardation of the optical compensation sheet (ks3) is 面, the in-plane retardation 値 (11 〇 is 33 nm. The optical compensation sheet (ks_3) is sandwiched between the positive father Nicole (CR0SS 1) ^1 (: 〇1〇 between polarizing plates, confirming the surface -63-1357505 state (linear mottled, poor orientation). The 'optical compensation sheet (KS-3) was the same adhesion evaluation as in Example 1. Example 4) (Saponification treatment and formation of a bismuth film) On a cellulose acetate film (CA-1), the surface temperature of the dielectric heating roll of the temperature of 60 ° C was raised to 30 乞. An alkali solution (s_4) having the composition shown below was applied at a coating amount of 10 cc/m 2 using a bar coater, and steam was produced in the Noritak Khanni Mitro (s) of the U. After the far-infrared heater is 'stayed for 20 seconds, use the same bar coater to apply pure water 3 cc/m2. At this time, the film temperature is 40. Then use a spring coater for water washing and use an air knife to remove water. After three times of coverage, it was allowed to stand in a dry zone at 70 ° C for _ 5 seconds to dry. &lt; Composition of alkali solution (S-4) &gt; Sodium oxide 5.7 mass% Water 33.3% by mass n-propanol 49.8 mass% ethylene glycol 10.0 mass% Defoamer PURURONIKUTR 70 (manufactured by Asahi Kasei Kogyo Co., Ltd.) 0.01% by mass Next, oriented film coating was carried out in the same manner as in the examples, and dried. The rubbing treatment was carried out. (Formation of optically anisotropic layer) The disc-type liquid crystal coating liquid (DA-1) used in Example 1 was used in addition to 0.35 parts by mass of the following disc-type liquid crystal DLC-B, and the following The organic acid (Α·4) 1.4 parts by mass in place of the disc-shaped liquid crystal DLC-A, and the organic acid (A-1) -64-1357505, and the other coating liquid (DA-1)-like coating liquid DA -4, the coating liquid (DA-4) was applied by a wire coating machine of #4, and heated at 125 ° C for 3 minutes in a high temperature bath to orient the disc-type liquid crystalline molecules, and then used a high-pressure mercury lamp at 500 00 / The optical compensation sheet KS-4 was prepared by irradiating UV with cm2 and cooling to room temperature [Chemical Formula 8]

LCD DLC-B

(CH2)3OCOCH=CH, [Chemical Formula 9] Organic Acid (A-4)

When the tilt angle is measured by the crystal rotation method, the angle (inclination angle) between the disk surface of the disc-type liquid crystalline molecule and the plane of the glass substrate increases from 3 degrees to 80 degrees from the film surface toward the optical air interface (mixed orientation) ), the average tilt angle is about 40 degrees, and the mixed orientation is known. The thickness of the optically anisotropic layer is 1·8&quot; m. When the 1357505 block of the optical compensation sheet (KS3) was measured along the rubbing direction of the oriented film, the in-plane retardation Re (Re) was 33 nm. The optical compensation sheet (KS_4) was sandwiched between CROSS NICOL polarizers to confirm the surface.: State (linear mottled, poor orientation). Further, the optical compensation sheet (KS-4) was evaluated for adhesion as in the first embodiment. (Comparative Example 1) An optical compensation sheet (KSR-1) was produced in the same manner as in Example 4 except that an optically anisotropic layer of the following was placed instead of the optically anisotropic layer. (Formation of Optically Anisotropic Layer) A disc-shaped liquid crystal coating liquid (DAR-1) having the following composition was applied by a wire coating machine of #4, and heated at 125 t in a high temperature bath for 3 minutes to form a disk type. After the liquid crystal molecules were oriented, UV was irradiated with a high pressure mercury lamp at 500 J/cm 2 and cooled to room temperature to prepare an optical compensation sheet (KSR-1). &lt;Disc type liquid crystal coating liquid (DAR-1)&gt; The following disc type liquid crystal DLC-A 9.1% by mass Ethylene oxide modified acrylic acid trimethylolpropane 0.9% by mass ester (V#3 60, Osaka Organic Chemistry Co., Ltd.) Cellulose acetate butyrate (CAB551-0.2 I. 0.2% by mass Sterman chemistry) cellulose acetate butyrate (CAB 531-1 Iss 0.05% by mass Teman) IRUGAKUA-907 3.0% by mass Kuraray-DETX (manufactured by Nippon Kayaku Co., Ltd.) 0·1 mass% methyl ethyl ketone 25.9% by mass -66 - 1357505 Disc type liquid crystal when tilt angle is measured by crystal rotation method The angle between the disk surface of the molecular molecule and the plane of the glass substrate (inclination angle) increases from 3 degrees to 80 degrees (mixed orientation) from the film surface toward the optical air interface, and the average tilt angle is about 40 degrees. Orientation. The thickness of the optically anisotropic layer was 1.8 nm. When the retardation 光 of the optical compensation sheet (KSR-1) was measured using an elliptical symmetry meter (manufactured by JASCO Corporation, m-15 0), the in-plane retardation Re (Re) was 33 nm. The optical compensation sheet (KS-5) was sandwiched between CROSS NICOL polarizing plates to confirm the surface state (linear mottle). Further, the optical compensation sheet (KSR-1) was subjected to the same adhesion evaluation as in Example 1. (Comparative Example 2) (Bottom treatment and formation of oriented film) On a cellulose acetate film (CA-1), the following gelatin primer liquid was applied to 28 ml/m2' to form a gelatin primer layer, followed by coating and application. The same oriented film of Example 1 was subjected to rubbing treatment after drying. (Formation of Optically Anisotropic Layer) The disc-shaped liquid crystal coating liquid (DA-1) was coated with a wire coating machine of #4, and heated at 125 ° C for 3 minutes in a high temperature bath to orient the disc-shaped liquid crystalline molecules. Thereafter, the UV was irradiated with a high pressure mercury lamp at 500 J/cm 2 and cooled to room temperature to prepare an optical compensation sheet (KSR-2). When the tilt angle is measured by the crystal rotation method, the angle (inclination angle) between the disk surface of the disc-type liquid crystalline molecule and the plane of the glass substrate is increased from 3 degrees ft to 80 degrees from the film surface toward the optical air interface. Mixed orientation), the average tilt angle is about 40 degrees, and the mixed orientation is known. The thickness of the optically anisotropic layer was 1.8 m. When the optical compensation sheet (KS_7) was measured along the rubbing direction of the oriented film, the retardation Re (Re) was 33 nm. The optical compensation sheet (KSR-2) was sandwiched between CROSS NICOL polarizers to confirm the surface condition (linear mottle). Further, the optical compensation sheet (KSR-2) was subjected to the same adhesion evaluation as in the first embodiment. _ (Comparative Example 3) (Bottom treatment, and formation of oriented film) On a cellulose acetate film (CA-1), apply the following gelatin primer liquid 28 ml/m2' to form a gelatin primer layer, followed by coating. The same alignment film as in Example i was dried and then subjected to a rubbing treatment. (Formation of Optically Anisotropic Layer) A disc-shaped liquid crystal coating liquid (DAR-1) was coated using a wire coating machine of #4, and heated at 125 ° C for 3 minutes in a high temperature bath to orient the disc-shaped liquid crystalline molecules. Thereafter, the UV was irradiated with a high-pressure mercury lamp at 500 μm / c m 2 , and cooled to room temperature to prepare an optical compensation sheet (KSR-3). When the tilt angle is measured by the crystal rotation method, the angle (inclination angle) between the disk surface of the disc-type liquid crystalline molecule and the plane of the glass substrate increases from 3 degrees to 80 degrees from the film surface toward the optical air interface (mixing Orientation), the average tilt angle is about 40 degrees 'to know the mixed orientation. The thickness of the optically anisotropic layer was 1. 8 v m. When the retardation 光学 of the optical compensation sheet (1 &lt; ^_8) was measured along the rubbing direction of the oriented film, the in-plane retardation Re (Re) was 33 nm. The optical compensation sheet (KSR-3) was sandwiched between crossed CCOL NICOL polarizers to confirm the surface condition (linear mottle). Further, the optical compensation sheet (KSR-3) was subjected to the same adhesion evaluation as in the first embodiment. -68- 1357505 (Example 5) (Saponification treatment, and formation of oriented film) On a cellulose acetate film (CA-1), 1.5 equivalents of KOH-isopropyl alcohol/water (75/25 mass) was applied at 25 ml/m2. Ratio) solution. Dry at 25 ° C for 5 seconds. It was washed with running water for 20 seconds, and the surface of the film was dried by blowing with air at 25 °C. Then, the oriented film was applied in the same manner as in Example 1, and after drying, the rubbing treatment was carried out in the direction of 45 degrees. (Optically Anisotropic Layer) The disc-type liquid crystal coating liquid (DA-1) used in Example 1 was replaced with the following organic acid (Α-5) by using 1 to 10 parts by mass of the organic acid (A-1). The coating liquid DA-5 having the same contents as the coating liquid (DA-1) was applied, and the coating liquid (DA-5) was applied at 125 using a wire coating machine #4. (: After heating in a high temperature bath for 3 minutes to orient the disc-type liquid crystalline molecules, irradiate the UV with a high-pressure mercury lamp at 50,000 J/cm 2 and cool to room temperature to prepare an optical compensation sheet (KS-5) » [Chemical Formula 10] Organic acid (A_5) cooc4h9

HO-CH

• I

HC-OH

I

COOH When the tilt angle is measured by the crystal rotation method, the angle (inclination angle) between the disc surface of the disc-type liquid crystalline molecule and the plane of the glass substrate increases from 3 to 80 degrees from the film surface toward the optical air interface (mixing) Orientation), the average tilt angle is about 40 degrees, and the mixed orientation is known. The thickness of the optically anisotropic layer was 1.8 #m. Measure the optical compensation sheet (KS_5) along the rubbing direction of the oriented film -69-1357505. When the retardation 値, the in-plane retardation Re(Re) is 33 nm, and the optical compensation sheet (KS-5) is sandwiched between the crossed sheets. Coordinator (CROSS NICOL) polarized plate to confirm the surface state (linear mottled, poor orientation). Further, the optical compensation sheet (KS-5) was evaluated in the same manner as in Example 1: Table 1 Film film thickness (//m) Surface state Acid line mottled orientation Orientation Adhesion test Example 1 KS] 109 Saponification 〇〇5 Example 2 KS-2 60 saponification has 0 〇 5 Example 3 KS-3 40 saponification has 0 〇 5 Example 4 KS-4 109 saponified 〇〇 5 Comparative Example 1 KSR-1 109 Saponified Μ 〇 yi X&gt; X 5 Comparative Example 2 KSR-2 109 underlayer has x 〇 5 Comparative Example 3 KSR-3 109 Underlayer without X 〇 5 Example 5 KS-5 109 Saponification 〇〇 5 (Example 6) (Transparent Production of Support) The following composition was placed in a mixing tank, and each component was stirred and dissolved while heating to prepare a cellulose acetate solution. <Composition of Cellulose Acetate Solution> Cellulose acetate (short cotton linter) with a degree of acetylation of 60.9% 80 parts by weight of cellulose acetate (short cotton linters) with an acetylation degree of 60.8% 20 parts by mass of triphenyl phosphate (plasticizer) 7.8 parts by mass of diphenyl diphenyl phosphate (plasticizer) 3.9 parts by mass of dichloromethane (first solvent) 300 parts by mass of methanol (second solvent) 54 parts by mass of 1-butanol (third solvent) 11 mass Part-70 1357505. In a separate mixing tank, 4 parts by mass of cellulose acetate (short cotton) having a degree of acetylation of 60.9%, and 16 parts by mass of the retarding agent of the first embodiment, 'cerium oxide microparticles (granules) The retardation agent solution was prepared by stirring at a temperature of 2 Onm, a Mohs hardness of about 7), 0.5 parts by mass, 87 parts by mass of methylene chloride, and 13 parts by mass of methanol. In 64 parts by mass of the cellulose acetate solution of the above composition, 36 parts by mass of the retardation enhancer solution was mixed, and the mixture was sufficiently stirred to be doped. The amount of the retardation agent added was 5.0 parts by mass based on 100 parts by mass of the cellulose acetate. The obtained doping was carried out by using a belt casting machine, and when the film surface temperature of the upper surface was 40 ° C, the film was dried for 1 minute, and a film having a residual solvent amount of 43% by mass was peeled off, and then dried at 140 ° C. , using a tenter to extend 28% in the width direction. Subsequently, the film was dried in a dry air at 130 °C for 20 minutes to prepare a cellulose acetate film (CA-4) having a residual solvent amount of 0.3% by mass. The obtained cellulose acetate film (CA-4) had a width of 1 3 40 mm and a thickness of 92 μm. The retardation at a wavelength of 59 Onm was measured using an ellipsometer (manufactured by JASCO Corporation, M-150). At (Re), it is 43 nm. Further, when the wavelength is 590 nm, the retardation (Rth) is 175 nm. (Saponification treatment and formation of oriented film) The obtained cellulose acetate film (CA-4) was used in a solution of 1.5 equivalents of water/isopropyl alcohol (30/7 Torr by mass) at 35 ° C. After impregnation for 1 minute, it was neutralized with sulfuric acid and washed with pure water. The surface energy of the cellulose acetate film (CA-4) was determined by the contact angle method to be 63 mN/m. On the acetic acid fresh film (CA-4), an oriented film coating liquid of the following composition was applied at 28 ml/m2 using a metal wire coating machine of #16. It was dried by a warm air of 60 ° C for 60 seconds, and further dried with a warm air of 90 ° C for 150 seconds. 1357505 &lt;Orientation film coating liquid composition&gt; The following modified polyvinyl alcohol 10% by mass Water 3*71% by mass Methanol 119% by mass Glutaraldehyde (crosslinking agent) 0.5% by mass [Chemical Formula 11] Modified polyvinyl alcohol —(CH2 —CjHh 2,〇—O-CO -CH3

One (CH2 -CH) 87.8 OH

〇~(CH2)4 -O-CO-OH =CH2 ~'(CH2-CH)02· o-co- in the late phase axis with cellulose acetate film (CA-4) (determined using wavelength 6 3 2.8 nm) ) Oriented film rubbing treatment was carried out in the direction of 45°. (Formation of optically anisotropic layer) + Disco liquid crystal DLC-A 41.04 kg, ethylene oxide modified trimethylol propyl acrylate (V# 3 60, manufactured by Osaka Organic Chemical Co., Ltd.) 4.06 Kg, cellulose acetate butyrate (manufactured by CAB531-1 Eastman Chemical Co., Ltd.) 0.35 kg, photopolymerization initiator (IRUGAKUA-907, manufactured by CIBAGEIGY Co., Ltd.) 1.35 kg, sensitizer (Kuraray-DETX ( Nippon Chemical Co., Ltd.) 0.45 kgv of the above organic acid (Al) 0.45 kg, dissolved in 102 kg of methyl ethyl ketone, coated with the coating liquid on the oriented film using a #3.6 metal line coater, at 1 After heating at 30 ° C for 2 minutes to orient the disc-type liquid crystalline molecules, the UV-type mercury lamp at 100 ° C and 120 W/cm was irradiated with UV for 1 minute to polymerize the disc-type liquid crystalline molecules. To the room temperature, an optical compensation sheet (KS-6) having an optically anisotropic layer was formed in the same manner. -72 - 1357505 When the Re-blocking 光学 of the optically anisotropic layer was measured at a wavelength of 54 6 nm, it was 38 nm. Further, the angle (inclination angle) between the disk surface and the first transparent support surface is an average of 3.1 degrees. CROSS NICOL configuration, observing the mottled optical compensation sheet obtained from the front and from the method to 60, even if viewed from the oblique direction, the mottle can not be detected" (manufacture of polarizing film) PVA having an average degree of polymerization of 4000 and a degree of saponification of 99.8 mol% was dissolved in water to obtain a 4.0% aqueous solution. This solution was subjected to belt casting and drying using a die with a taper attached thereto to form an extension. The width of the front is 110mm, the left end of the thickness is 120//m, and the right end is 135//m. The film is stripped from the tape and stretched obliquely in the 45 degree direction in the dry state, while maintaining this state at 砩0.5 g/L, In an aqueous solution of potassium iodide 50 g/L, at 30 ° C, impregnation for 1 minute, followed by impregnation at 70 ° C for 5 minutes in an aqueous solution of 10 μg/L of boric acid and 60 g/L of potassium iodide, and washed in water. In the bath, the sheet was washed with water at 20 degrees for 1 second, and then dried at 80 ° C for 5 minutes to obtain an iodine-based polarizing film (HF-1). The polarizing film was 660 mni in width and 20/ζηη in thickness. (Manufacture of polarizing plate) ): Optical compensation sheet (KS-6) with an optical anisotropic layer using a polyvinyl alcohol-based adhesive The cellulose acetate film (CA-4) is attached to one side of the polarizing film (HF-1). Further, the cellulose acetate film with a thickness of 80/m (TD-8 0U: Fuji Photo FILM ( The saponification treatment was carried out by using a polyvinyl alcohol-based adhesive attached to the opposite side of the polarizing film. The transmission axis of the polarizing film and the late phase axis of the cellulose acetate film (CA-4) were arranged in parallel. The transmission axis of the polarizing film and the late phase axis of -73 to 1357505 of the above-mentioned triacetylcellulose film were arranged vertically, and thus, a polarizing plate (hb-1) was produced. (Comparative Example 4) An optical compensation sheet (KSR-4) was produced in the same manner as in Example 1 except that the organic acid (A-1) was added to the optically anisotropic layer, and an optical compensation sheet (KSR-4) was produced. Polarizer (HB-H1). (Example 7) (Production of a transparent support) Into a mixing tank, 16 parts by mass of a retardation enhancer used in Example 1, 80 parts by mass of dichloromethane, and 20 parts by mass of methanol were charged, and stirred while heating to modulate the resistance. Rugged riser solution·. In 474 parts by mass of the cellulose acetate solution obtained in Example 6, 25 parts by mass of the retardation enhancer solution was mixed, and the mixture was sufficiently stirred to be doped. The amount of the retardation increasing agent added was 3.5 parts by mass based on 100 parts by mass of the cellulose acetate. The obtained doping was carried out by using a belt casting machine, and when the film surface temperature of the upper surface was 40 ° C, the film was dried for 1 minute, and after stripping, a dry air of 140 ° C was used to prepare a residual solvent amount of 0.3% by mass. Cellulose acetate film (CA-5). The obtained cellulose acetate film (CA-5) had a width of 1 500 mm and a thickness of 65 &quot; m. An elliptical symmetry meter (manufactured by JASCO Corporation, M-150) was used, and when the retardation (Re) was measured at a wavelength of 590 nm, it was 4 nm. Further, when the retardation R(Rth) was measured at a wavelength of 590 nm, it was 78 nm. (Saponification treatment) The obtained cellulose acetate film (CA-5) was impregnated with 2.0 N hydrogen (potassium oxide solution (25 ° C) for 2 minutes, neutralized with acid, washed with pure water, and dried. The surface angle of the cellulose acetate film (CA-5) was determined by the contact angle method to be -74 to 1357505, which was 63 mN/m. (Formation of oriented film) On the cellulose acetate film (CA-5) obtained by the production, use A metal line coating machine of #16 was applied to the oriented film coating liquid of the following composition at 28 ml/m2, dried with a warm air of 60 ° C for 60 seconds, and further dried with a warm air of 90 ° C for 150 seconds. Liquid composition &gt; Modified J1 modified polyvinyl alcohol 10% by mass Water 371% by mass Methanol 119% by mass Glutaraldehyde (crosslinking agent) 0.5 ΜΛ% Next, oriented with cellulose acetate film (CA-5) Rubbing treatment of modified polyvinyl alcohol in the direction parallel to the long direction" &lt;Formation of optical. anisotropic layer&gt; Disc type liquid crystal DLC-A 41.01kg 'Ethylene oxide modified with trimethylol acrylate Propyl ester (V#3 60, Osaka Organic Chemical Co., Ltd.) 4.06kg, cellulose acetate butyrate (CABH Bu 0.2 East (Transliteration) Chemical Co., Ltd.) 0.90 kg of cellulose acetate butyrate (manufactured by CAB531-1 Eastman Chemical Co., Ltd.) 〇.23kg, photopolymerization bow hair spray (IRUGAKUA-907, manufactured by CIBAGEIGY) 1.35 Kg, sensitizer (Kelly-DETX (manufactured by Sakamoto Chemical Co., Ltd.) 0.45 kg, the following organic acid (Α-6) 0·40 kg, dissolved in 102 kg of methyl ethyl ketone, used The coating liquid of #3.4 was applied to the oriented film, and heated in a constant temperature zone of 130 ° C for 2 minutes to orient the disc-shaped liquid crystal, and then oriented at 120 W/cm in an environment of 60 ° C. The high-pressure mercury lamp was irradiated with UV for 1 minute to polymerize the disc-type liquid crystalline molecules, and then cooled to room temperature, thereby forming an optically anisotropic layer to prepare an optical-75-1357505 compensation sheet (KS-9). Organic Acid (A-6) CH2C00CH3

HO-C-COOH

I coocHg was 40 nm when the Re retardation 光学 of the optically anisotropic layer was measured at a wavelength of 54 6 nm. Further, the angle (tilt angle) between the disk surface and the first transparent support surface was an average of 3 7 °. When the polarizing plate was placed in a CROSS NICOL configuration and the mottled optical compensation sheet was observed, the mottle was not detected from the front side and from the normal line to 60, even when viewed from the oblique direction. (Manufacture of polarizing plate) The optical compensation sheet (KS-9) was adhered to one side of the polarizing film (HF-1) using a polyvinyl alcohol-based adhesive. Further, a cellulose triacetate film (TD-80U: manufactured by Fuji Photo FILM Co., Ltd.) having a thickness of 80/zm was subjected to saponification treatment, and adhered to the opposite side of the polarizing film using a polyvinyl alcohol-based adhesive. The transmission axis of the polarizing film and the slow axis of the cellulose acetate film (CA-5) were arranged in parallel. The polarizing plate (Η B - 2 ) was produced by disposing the transmission axis of the polarizing film perpendicular to the slow axis of the cellulose triacetate film. (Comparative Example 5) An optical compensation sheet (KSR-5) was produced in the same manner as in Example 7 except that an organic acid (Α-6) was added to the optically anisotropic layer, and an optical compensation sheet (KSR-5) was produced. Polarizer (HB-H2). (Manufacturing of Bent Directional Liquid Crystal Cell) -76- 1357505 On the glass substrate with the ITO electrode, polyimine was set as a directional film, and the oriented film was subjected to rubbing treatment. The obtained two glass plate substrates were arranged to face each other in the rubbing direction in parallel, and the cell gap was set to 6; zm. A liquid crystal compound (ZLI 1 1 32, manufactured by Meluku) manufactured by □ n (difference between the refractive index ne and no) was produced, and a curved directional liquid crystal cell was produced. The size of the liquid 'cell was 20. English. Two polarizing plates (HB-1) manufactured in the sixth embodiment were attached to each other by sandwiching the formed curved alignment liquid crystal cell. The optically anisotropic layer of the elliptically polarizing plate faces the wafer substrate, and the rubbing direction of the liquid crystal cell is arranged in an anti-parallel manner with the rubbing direction of the face-to-face optical anisotropic layer. A rectangular wave voltage of 55 Hz was applied to the liquid crystal cells, and a standard white pattern of _2 V and black display of 5 V was displayed. In comparison with the transmittance ratio (white display/black display), the viewing angles of eight stages from the black display (L1) to the white display (L8) were measured using a measuring machine (EZ-Contrast 160 D, manufactured by ELDIM). Table 2 Practical example (Polarizing plate) Field of view (comparison is 10 or more, the range of the black side is not reversed) Up and down, left and right Embodiment 6 80. 80. 80. (HB-1) . Comparative Example 4 80. 80. 80. (HB-H1) (Note) Reverse of the black side: Refers to the reverse between L1 and L2. (Mottle evaluation on the panel of the liquid crystal display device) The display panel -77-1357505 of the liquid crystal display device of Example 6 and Comparative Example 4 was adjusted for comprehensive mid-tone adjustment, and the mottle was evaluated. In Example 6, no mottle was observed from all directions, and Comparative Example 4 was in the upper field of view 45. The above check out the lattice mottled. (Evaluation using TN liquid crystal cells) One of the liquid crystal display devices (AQUOS LC20C1S, Sharp) was used for the polarizing plate. The liquid crystal display device used TN liquid crystal cells. Alternatively, the polarizing plate (η B - 2 ) obtained in Example 7 was placed such that the optical compensation sheet (KS-9) was on the liquid crystal cell side, and an adhesive was applied to the viewer side and the backlight side, one for each. . The transmission axis of the observer-side polarizing plate and the transmission axis of the backlight-side polarizing plate are arranged in a 〇 type. With respect to the obtained liquid crystal display device, a viewing angle of eight stages from black display (L1) to white display (L8) was measured using a measuring machine (EZ-Contrast 160 D, manufactured by ELDIM Co., Ltd.). Further, the viewing angle was measured by the polarizing plate (ηβ-η) manufactured in Comparative Example 5 in the same manner, and the results were as shown in Table 3. Table 3 Practical example (Polarizing plate) Viewing angle (Comparatively 10 or more, the black side layer does not have a range of 1 turn) Up and down Left and right Embodiment 7 80. 60. 80. (ΗΒ-2) Comparative Example 5 80. 45. 80. (ΗΒ-Η2) (Note) The reverse of the black side: refers to the reverse between L 1 and L2. -78- 1357505 (Mottle evaluation on the panel of the liquid crystal display device) The display panels of the liquid crystal display devices of Example 7 and Comparative Example 5 were adjusted to have a full intermediate tone, and the mottle was evaluated. In Example 7, no mottle was observed from all directions, and Comparative Example 5 examined lattice mottled in the upper field of view of 45 or more. (Examples 8 to 15) Each of the polarizing plates was produced in the same manner as in Example 1 except that the organic acid (A) described in the following Table 4 was used in place of the optically anisotropic layer. (Table 4)

EXAMPLES Organic Acids (A) Examples Organic Acids (A) 8 (A-7) 0 HO(CH2)2〇C〇(CH2)4Jj&gt;-OH OH 12 (A-ll) ijj COOC2H5 HOOC 9 (A- 8) cooc4h9 々. H xso3h 13 (A-12) COOH 1 c2h5cooch H-COH 1 COOH 10 (A-9) Citric acid 14 (A-13) NHCOC4H9 HS (Chy2CHC00H 11 (A-10) OH ^L^cooh V NHCONHC^JHg 15 (A-14) ch3 1 ch3nhcoocch2cooh OH -79-1357505 The obtained polarizing plates were evaluated in the same manner as in Example 1, and all of the samples had good performance in the same manner as in Example 1. (Example 1 6 (Production of a transparent support) The following composition was put into a mixing tank, and the mixture was stirred while heating to dissolve into a cellulose acetate solution. <Compound of cellulose acetate solution> The degree of acetylation was 60.9%. Cellulose acetate 100 parts by mass of triphenyl phosphate (plasticizer) 7.8 parts by mass of diphenyl diphenyl phosphate (plasticizer) 3.9 parts by mass of dichloromethane (first solvent) 300 parts by mass of methanol (second solvent) 45 mass a portion of the dye (360FP) manufactured by Inachem Co., Ltd., 0.0009 parts by mass, and 16 parts by mass of a retardation agent, 80 parts by mass of methylene chloride, and 20 parts by mass of methanol were placed in another mixing tank, and stirred while heating to prepare Blocking the riser solution. The quality of the cellulose acetate solution 464 in the above composition In the mixture, 36 parts by mass of the retardation enhancer solution and 1.1 parts by weight of the cerium oxide microparticles (R9 72 manufactured by Yaruglu) are sufficiently stirred to prepare a doping. The addition amount of the retardation rising agent is relative to The amount of the cellulose acetate is 5.0 parts by mass. Further, the amount of the cerium oxide added is 0.1 parts by mass based on 100 parts by mass of the cellulose acetate. [Chemical Formula 1] Blocking Rising Agent - 80 - 1357505

The obtained treatment was carried out by using a belt casting machine, and when the film surface temperature of the upper surface was 40 ° C, it was dried for 1 minute, and after peeling, dry air was used to prepare a cellulose acetate film having a residual solvent content of 0.3% by mass. CA-1 (thickness 100# m) 〇

With respect to the produced cellulose acetate film CA-1, the retardation 测定 was measured, and the retardation 値Rth of the thickness direction was 85 nm, and the in-plane retardation 値Re was 7 nm. (Saponification and formation of oriented film)

On a cellulose acetate film (CA-1), the surface temperature of the film was raised to 40 ° C by a dielectric heating roller having a temperature of 60 ° C, and then coated with a coating amount of .15 cc / m 2 using a bar coater. The alkaline solution (S-1) of the composition shown is held in a far-infrared heater made by a Nordisk Kantini Mitro (Fly) heated to 110 ° C for a period of 15 seconds. Pure water was applied at 3 cc/m2 using the same bar coater. The film temperature at this time was 40 °C. Then, it was washed with a spring coater and subjected to water removal three times with an air knife, and then left to stand in a drying zone of 70 ° C for 5 seconds to dry. &lt;Basic solution of alkali solution (S-1)&gt; Sodium hydroxide 8.55 Mass 0 / hydrazine 23'235% by mass Isopropanol 54.20% by mass Surfactant (K-1: c14h29o(ch2ch2o)2()h 1.0 Mi % Propylene glycol 13.0 Mm% Defoamer SAFINOLDF110D (Nippon Chemical Industry Co., Ltd.) 0.015 MM% -81 - 1357505 (Formation of oriented film). On the surface treated film, use a bar coater at 28 ml/m2 The coating amount was applied to the oriented film coating liquid having the following composition, and dried with a warm air of 60 ° C for 60 seconds and a warm air of 90 ° C for 150 seconds. When the pH of the coated surface after drying was measured, the enthalpy was 4.1. The pH 位置 in the center of the coating width direction and the left and right end positions is in the range of 4.00 to 4.20. &lt;Orientation film coating liquid&gt; 20% by mass 〇. 〇7 mass% 〇. 5 mass% 3 6 0 mass% 1 20% by mass of the following modified polyethylene glycol the following carboxylic acid compound (A-1) glutaraldehyde water methanol [chemical formula] modified polyethylene glycol-(CH2-CH^7 2-i〇H2-CH -^e OH 〇〇coch3 · 〇=C~vj/ 〇(CH^4〇C〇CH=CH2 carboxylic acid compound (A-1) CH2COOC2H5

HO-C-COOH

I ch2cooc2h5 Next, rubbing treatment is performed in the longitudinal direction of the film. -82- 1357505 (Formation of Optically Anisotropic Layer) A disc-shaped liquid crystal coating liquid (DA-1) having the following composition was applied by a wire coating machine of #4, and heated at 125 ° C for 3 minutes in a high temperature bath. After the disc-type liquid crystal molecules were oriented, UV was irradiated with a high pressure mercury lamp at 500 J/cm 2 and cooled to room temperature to prepare an optical compensation sheet KS-1. &lt;Disc type liquid crystal coating liquid (DA-1)&gt; The following disc type liquid crystal DLC-A 9.1% by mass Ethylene oxide modified acrylic acid trimethylolpropane 0.9% by mass. Ester (V#3 60 , Osaka Organic Chemistry Co., Ltd.) Cellulose acetate butyrate (CAB551-0.2 I. 0.2% by mass Sterman) Cellulose acetate butyrate (CAB531-1 Iss. 〇 5 mass%. Terman ( Transliteration) Chemistry). IRUG AKUA-90 7 3〇质量% Kuraray - DETX (made by Nippon Kayaku Co., Ltd.) 〇1% by mass Methyl ethyl ketone 25.9% by mass [Chemical Formula 3]

Liquid crystal D L C - A

R=—0C0H^^~0(CH2)60C0CH=CH2 When the tilt angle is measured by the crystal rotation method, the angle (inclination angle) between the disc surface of the disc-type liquid crystalline molecule and the plane of the glass substrate is measured from the film surface. 1357505 The optical air interface 'increased from 3 degrees to 80 degrees (mixed orientation), the average tilt angle is about 40 degrees, and the mixed orientation is known. The thickness of the optically anisotropic layer was 1.8 cm. When the retardation 光学 of the optical compensation sheet KS-1 was measured using an elliptical symmetry meter (manufactured by Japanese Spectroscopic Co., Ltd., M-15 0), the in-plane retardation Re (Re) was 33 nm. The optical compensation sheet KS-1 was sandwiched between CROSS NICOL polarizing plates to confirm the surface state (white detachment mottle, poor orientation). Further, the optical compensation sheet KS-1 was adhered to a glass plate using an acrylic adhesive, and was stored at 90 t for 24 hours, and the acrylic adhesive was used in the same manner as in the assembly of a liquid crystal display device, a glass plate, and a liquid crystal cell. The optical compensation sheet was peeled off from the glass plate in the vertical direction, and the peeling residual portion was examined to evaluate the adhesion. The evaluation was carried out from 5 grades of 〇 (significantly peeling residue) to 5 (it was found that there was no peeling at all). The results are as shown in Table 4 (Example 17) (manufacture of transparent support) The doping obtained in Example 16 was carried out using a belt casting machine, and the film surface temperature of the belt was 40 °. In the case of C, it was dried for 1 minute, and after peeling, dry air was used to prepare a cellulose acetate film (CA-2) having a residual solvent content of 0.3% by mass (thickness of 60 Å/m). CA-2), the retardation 値Rth of the retardation 厚度' thickness direction was measured to be 43 nm, and the in-plane retardation 値Re was 4 nm. (Saponification treatment and formation of oriented film) On the cellulose acetate film (CA-2), the hot air of l〇〇°C was collided, and after heating to 45 °C, it was kept at 25. (: Next, using a bar coater at a coating amount of Hcc/m2, an alkali solution (S-2) having the composition shown below was applied, and after 13 seconds, -84-1357505 was coated with pure water of 5 cc using the same bar coater. M2. The film temperature at this time was 45 ° C. Then, water washing was performed by applying a pure water of 10 00 c c/m 2 using an extrusion coater, and after 5 minutes, the water-coated surface was rubbed with an air knife at a wind of 100 m/sec. This was washed with a squeeze coater and twice with water removed by an air knife, and left to dry in a drying zone of 8 for 1 sec. &lt;alkaline solution (S-2) composition&gt; 6.5 mass% water 5 5.4 9 mass% n-propanol 3 7.0 mass%

Surfactant (K-2: ethylenediamine epoxy 1.0% by mass ethane addition) Defoamer SAFINOL 104 (Nissin Chemical Co., Ltd. 0.01% by mass) (Orientation film coating solution &gt; On the obtained PK-2, an oriented film coating liquid of the following composition was applied at a coating amount of 28 ml/m 2 using a bar coater. A warm air of 60 ° C was used for 60 seconds, and a warm wind of 90 ° C was used. Dry for 0 seconds.

The pH of the center and the left and right ends of the coated surface of the coated surface after drying was measured to be in the range of 3.90 to 4.05. &lt;Orientation film coating liquid composition&gt; The following modified polyvinyl alcohol 1 3.5% by mass polyvinyl alcohol (PVA117, Cura, 1.5% by mass) 0.0 5 mass% 3 6 1 mass% 1 1 9 mass % 〇. 5 mass% of the following carboxylic acid compound (A-2) water. Methanol glutaraldehyde (crosslinking agent) -85 1357505 [Chemical Formula 4] Modified polyvinyl alcohol iH 〇OCOCHa 0=C-CH-CH -^^-0(CH2)20C0CH=CH2 carboxylic acid compound (A · 2 ) Ί300(0Η2)8000Η ho-^hj

C) CO(CH2)3COOH Next, the modified polyvinyl alcohol is subjected to a rubbing treatment in a direction oriented parallel to the longitudinal direction of PK-2. (Formation of optically anisotropic layer) Next, using the disc-type liquid crystalline coating liquid DA-1 used in Example 16, an optical compensation sheet KS-2 was produced in the same manner as in Example 16 ^ When the tilt angle was measured by the crystal rotation method The angle (inclination angle) between the disc surface of the disc-type liquid crystalline molecule and the plane of the glass substrate increases from 3 degrees to 80:degree (mixed orientation) from the film surface toward the optical air interface, and the average tilt angle is about 4 0 degrees, knowing the mixed orientation. The thickness of the optically anisotropic layer was 1.8 β m. When the retardation enthalpy of the optical compensation sheet KS-2 was measured using an ellipsometer (M-150 manufactured by Japan Separation Co., Ltd.), the in-plane retardation Re (Re) was 33 nm. The optical compensation sheet KS-2 was sandwiched between CROSS NICOL and the light panel was confirmed to have a surface condition (linear plaque, poor orientation). Further, using the optical compensation sheet KS-2, it was carried out in the same manner as in Example 6 - 86 - 4.0% by mass, 42.7 mass%, 40.0 mass 0 / 〇 12_0 mass%: 1 - 3 mass%, 1357505 Adhesion evaluation. (Example 1 8) (Production of transparent support) The doping obtained in Example 16 was carried out using a tape extension. When the film surface temperature of the upper surface was 40 ° C, the air was dried for 1 minute to prepare a vinegar CA-3 (thickness 4 〇em) having a residual solvent amount of 0.3% by mass. Regarding the cellulose acetate film CA-3 produced, the retardation 値Rth of the thickness direction was measured to be 32 nm, and the in-plane retardation (saponification treatment and formation of an oriented film) was carried out on a cellulose acetate film (CA-3). In addition to the usable solution (S-3), the same as in Example 16 &lt;alkaline solution (S-3) composition&gt; sodium hydroxide water methyl cellosolve tetraethylene glycol surfactant (K -3 C9H19Ph(0CH2CH2)3S03Na (Ph-based benzene-based defoamer PURURONIKU TR70 (manufactured by Asahi Kasei Co., Ltd., 0.1% by mass)) Thereafter, an oriented film was applied in addition to the oriented film coating of the following composition and Example 16 After drying, the shoulder is applied, and after drying, the pH of the coated surface in the direction of the coating direction is in the range of 4.05 to 4.25. The casting machine performs flow: after stripping, the acid cellulose film is used to block the enthalpy,値Re is 3 nm. Alkali treatment of the following contents. Other than liquid, the other rubbing treatment. And left and right ends 1357550 &lt; oriented film coating liquid &gt; 20% by mass 0.0 6 mass% 3 6 0 mass % 1 2 0% by mass The following modified polyvinyl alcohol has the following carboxylic acid compound (A-3) water methanol glutaraldehyde 0 · 5 mass % [Chemical Formula 5] Modified polyvinyl alcohol HCHs-CH^fCH^CH^-tCHa-CH^-tCHa-CH^ 〇H ? OCOCHg 〇CONH(CH^2OCOC=QH2 CH;

Nh^-coo^Q-Q carboxylic acid compound (A-3) CH2COOC3H7

HO-CH

I

COOH (Formation of Optically Anisotropic Layer) The disc-type liquid crystal coating liquid DA-1 used in Example 16 was used in place of the liquid crystal DLC-A in addition to the following liquid crystal DLC-B 10.35 parts by mass. The coating liquid DA-1-like coating liquid DA-2 was coated with the coating liquid DA-2 using a metal line coating machine of #4, and heated at 125 ° C for 3 minutes in a high temperature bath to orient the disc-shaped liquid crystalline molecules. The UV compensation lamp KS_3 was prepared by irradiating UV with a high pressure mercury lamp at 500 Hz/cm 2 and cooling to room temperature. [Chemical Formula 6]

Liquid crystal D L C - B -88- 1357505

R

CH3

R= -〇CH=CH-C〇-/3-〇(CH2)2CH(CH2)3〇COCH=CH2 The thickness of the optically anisotropic layer is the optical compensation sheet KS-3 measured along the rubbing direction of the oriented film. When the enthalpy is blocked, the in-plane retardation Re (Re) is 33 nm. The optical compensation sheet KS-3 was sandwiched between CROSS NICOL polarizing plates to confirm the surface state (linear mottled, poorly oriented). Further, the optical compensation sheet KS-3 was subjected to the same adhesion evaluation as in Example 16. (Example 19.) (Saponification treatment and formation of oriented film) On a cellulose acetate film (CA-1), the surface temperature of the film was raised to 3 〇 by a dielectric heating light cylinder having a temperature of 60 ° C. After C, an alkali solution (S_4) having the composition shown below was applied at a coating amount of 10 cc/m 2 ' using a bar coater, and Noritak Kantini Mitro (s) was heated to 110 ° C. Under a steam far-infrared heater, after staying for 20 seconds, 3 cc/m2 of pure water was applied using the same bar coater. The film temperature at this time was 4 ° C. Then, using a spring coater for water washing and using an air knife to remove water for three times, leave it in a dry area of 7〇·89-1357505 eC for 5 seconds to make a dry &lt;alkaline solution (S-1) composition&gt; N-propanol ethylene glycol 5.7 mass% 3 3.3 mass% 4 9.8 mass% 1 0.0 mass% defoamer PURURONIKU TR70 (Asahi Corporation 0_01% by mass Chemical Industry Co., Ltd.) Next, in addition to the orientation of the following composition The film coating liquid was applied and dried in the same manner as in Example 1 and then subjected to a rubbing treatment. &lt;Orientation film coating liquid&gt; The following modified polyethylene glycol 20% by mass The following carboxylic acid compound (A-4) 0.10% by mass Water 3 60% by mass Methanol 1 2 0% by mass Glutaraldehyde 0.5% by mass [Chemical Formula 7] Modified Polyethylene Glycol-{CH2-CH^e-(-CH2-CI+fe

OH residual acidification, compound (A -4 ) ch3

CH3COO(CH2)2CCH2COOH

OH-90-1357505 (Formation of optically anisotropic layer) An optically anisotropic layer was provided in the same manner as in Example 18 except that the disc-type liquid crystal coating liquid (DA-2) used in Example 18 was used. The thickness of the optically anisotropic layer was 1.8 //m. When the retardation 光学 of the optical compensation sheet KS-4 was measured along the rubbing direction of the oriented film, the in-plane retardation Re (Re) was 33 nm. The optical compensation sheet KS-4 was sandwiched between crossed CROSSNICOL polarizing plates to confirm the surface state (white detachment mottled, poor orientation). Further, the optical compensation sheet KS-4 was subjected to the same adhesion evaluation as in Example 16. (Comparative Example 6) The alignment film of the embodiment 16 was replaced with the carboxylic acid compound (a-ι) of the alignment film coating liquid of Example 16 except that propionic acid was used instead of the composition of Example 16' and Examples In the same manner, an optical compensation sheet (KSR-1) was produced. The optical compensation sheet KSR-1 was sandwiched between crossed Nicols (CR0SS NIC〇I〇 polarizing plate to confirm the surface state (linear mottle). Further, the optical compensation sheet KSR-1 and the embodiment 16 were implemented- (Comparative Example 7) The alignment film of Substituting Example 16 was the same as the composition of Example 16 except that propionic acid was used instead of diethyl citrate of the alignment film coating liquid of Example 16. Example 1 6 An optical compensation sheet (KSR_ 2) was produced in the same manner, and an optical compensation sheet (KSR-1) was sandwiched between crossed polarizers (CR〇ss NIC〇L) polarizing plates to confirm the surface state (linear shape). -91 - 1357505 Further, the optical compensation sheet KSR-2 was subjected to the same adhesion evaluation as in Example 16. Table 5 Film thickness (&quot;m) Surface state White peeling mottled orientation poor adhesion test Example 16 KS- 1 100 Saponified Hydrazine 〇 5 Example Π KS-2 60 Saponified Hydrazine 5 Example 18 KS-3 40 Saponified Hydrazine 5 Example 19 KS-4 80 Saponified Hydrazine 5 Comparative Example 6 KSR-1 109 Saponified Δ X 5 Comparative Example 7 KSR-2 109 Saponified XX 4 (Example 20) (Manufacture of support film) The following composition was placed in a mixing tank, and the components were dissolved while heating to prepare a cellulose acetate solution. <Compound of cellulose acetate solution> Cellulose acetate (short cotton linter) having a degree of acetylation of 60.9% 8〇 A portion of cellulose acetate (short cotton lint) having a degree of acetylation of 60.8%. 20. parts by mass of triphenyl phosphate (plasticizer;) 7.8 parts by mass of diphenyl diphenyl phosphate (plasticizer) 3.9 parts by mass of dichloromethane (1st solvent) 300 parts by mass of methanol (second solvent) 54 parts by mass of 1-butanol (third solvent) 11 parts by mass of cellulose acetate (short lint) having a degree of acetylation of 60.9% in another mixing tank 4 parts by mass, the following retarding agent ri 14 4 parts by mass 'silica fine particles (particle size 2 Onm, Mohs hardness about 7) 0.5 parts by mass, dichloro-92-1357505 methane 87 parts by mass and methanol 13 parts by mass, stirred and heated to prepare a retarding agent solution. In 464 parts by mass of the cellulose acetate solution having the above composition, 36 parts by mass of the retarding agent solution was mixed, and stirred sufficiently to form a doping. The amount of R1 added is 4.5 mass relative to 100 parts by mass of cellulose acetate. [Chemical Formula 8] Blocking Rising Agent R1 Η ‘ ‘ Η •Ν Ν

Och3 The obtained doping was carried out by using a belt casting machine, and when the film surface temperature of the film was 40 ° C, the film was dried for 1 minute, and a film having a residual solvent amount of 43% by mass was peeled off, and then dried at 140 ° C. , using a tenter to extend 28% in the width direction. Subsequently, the film was dried in a dry air at 135 ° C for 20 minutes to prepare a cellulose acetate film (CA-4) having a residual solvent amount of 0.3% by mass. The obtained cellulose acetate film (CA-4) had a width of 1 340 mm and a thickness of 90 # m. Using an elliptical symmetry meter (manufactured by JASCO Corporation, M-150), -93-1357505 was 43 nm when the retardation (Re) at a wavelength of 590 nm was determined. Further, when the wavelength is 5 90 nm, the retardation (Rth) is 175 nm. (Saponification treatment and formation of oriented film) The obtained cellulose acetate film (CA-4) was prepared in a solution of 1.5 mol/L water/isopropyl alcohol (3 〇/7 〇 mass ratio). 3 5 ° C was impregnated for 1 minute for alkali treatment, and after the adhesion treatment, the mixture was neutralized with sulfuric acid, washed with pure water, and dried to obtain a transparent support to which an adhesion treatment was applied. The surface energy of the cellulose acetate film (CA-4) was determined by the contact angle method to be 62 mN/m. On the cellulose acetate film (CA-4), an oriented film coating liquid having the following composition was applied at 3 lml/m 2 using a #1 8 bar coater. It was dried with a warm air of 60 ° C for 60 seconds' and then dried with a warm air of 90 ° C for 150 seconds. When the p Η of the coated surface after drying was measured, the enthalpy was 4.1. Further, the pH 位置 at the center of the coating direction and the positions of the left and right ends are in the range of 4.00 to 4.20. &lt;Orientation film coating liquid&gt; Orientation film coating liquid composition &gt; 10% by mass 10% by mass, 0.07 ΜΛ% 371% by mass 119% by mass 0.5% by mass The following modified polyvinyl alcohol (PVA117, Kurale) The modified carboxylic acid compound of the oriented film coating liquid of Example 16 was subjected to the carboxylic acid compound (A-1) of the oriented film coating liquid of Example 16 water methanol, glutaraldehyde (crosslinking agent) in the film with cellulose acetate The retardation axis of (CA-4) (measured using a wavelength of 6 32.8 nm) was subjected to an oriented film rubbing treatment in the direction of 45°. -94'- 1357505 (Formation of optically anisotropic layer) A disc-shaped liquid crystal coating liquid (DA-1) having the following composition was applied by a wire coating machine of #3.0, and heated at 135 ° C in a high temperature bath 2 After the disc-shaped liquid crystal molecules were oriented, the UV was irradiated with a high-pressure mercury lamp at 500 J/cm 2 and cooled to room temperature to prepare an optical compensation sheet (KS_5). The optical compensation sheet KS-5 was evaluated in the same manner as in Example 16 to carry out evaluations such as white detachment mottle, poor orientation, adhesion, and the like, and good results similar to those in Example 16 were obtained. &lt;Disc type liquid crystal coating liquid (DA-1)&gt; The above-mentioned disc type liquid crystal DLC-A 91% by mass of ethylene oxide-modified trimethylolpropyl acrylate (V#360, Osaka has 9 mass%) Machine Chemistry (Shares) Cellulose Acetate Butyrate (CAB531-1 Eastman Chemical) 1% by mass Photopolymerization bow hair cream (IRUGAKUA-907, manufactured by CIBAGEIGY) 3 mass% sensitizer (Coke --DETX Nippon Kayaku Co., Ltd.) 1% by mass Fluorine-based surfactant (F-1) having the following structure: 0.4% by mass The specific gravity of the coating liquid is adjusted to 0.918 using methyl ethyl ketone [Chemical Formula 9] Surfactant (F-1)

C8F17S02N(-CH2CH20)^-H 03H7 When the tilt angle is measured by the crystal rotation method, the angle (inclination angle) between the disc surface of the disc-type liquid crystalline molecule and the plane of the glass substrate is changed from the film surface toward the optical air interface. The 3 degree is increased to 65 degrees (mixed orientation), and the average tilt angle is about 34 degrees, and the mixed orientation is known. 1357505 The thickness of the optically anisotropic layer is 1.4/zm. At a wavelength of 546 nm, the optical anisotropic layer has a retardation Re (Re) of 29 nm. (Measured by using an ellipsometer (manufactured by JASCO Corporation, M-150)) The polarizing plate was placed in a CROSS NICOL, and the obtained optical compensation sheet was observed from the front and the normal. Up to 60, mottled cannot be detected even when viewed from a tilted direction. (Production of polarizing film) PVA having an average degree of polymerization of 4000 and a degree of saponification of 99.8 mol% was dissolved in water to obtain a 4.0% aqueous solution. This solution was subjected to tape casting and drying using a die with a taper, and the film was formed to have a width of 110 mm before stretching, a width of 120&quot; m at the left end, and 135/zm at the right end. The film was stripped from the tape and stretched obliquely in the dry state at 45 degrees. After being kept in this state, the solution was immersed in an aqueous solution of iodine 5 g/L and potassium iodide 50 g/L at 30 ° C for 1 minute. Next, it was impregnated at 70 ° C for 5 minutes in an aqueous solution of boric acid 100 g / L and potassium iodide 60 g / L, and further washed with water at 20 ° C for 10 seconds in a water washing tank, and then dried at 80 ° C for 5 minutes to obtain an iodine-based polarizing film. (HF-01). The polarizing film has a width of 660 mm and a thickness of about 20 μm. (Manufacture of polarizing plate) Using an polyvinyl alcohol-based adhesive, an optical compensation sheet (KS-5) having an optical anisotropic layer was attached to a polarizing film with a cellulose acetate film (CA-4). One side of (HF-1). In addition, the triacetate film (TD-80U: manufactured by Fuji Photo FILM Co., Ltd.) having a thickness of 80/zm was carried out and an example! The saponification treatment was carried out in the same manner as in the saponification treatment, and a polyvinyl alcohol-based adhesive was applied to the opposite side of the polarizing film. The transmission axis of the polarizing film and the late phase axis 1357505 of the cellulose acetate film (CA-4) were arranged in parallel. The polarizing plate (HB-1) was produced by disposing the transmission axis of the polarizing film perpendicular to the slow axis of the cellulose triacetate film. (Example 21) (Production of a transparent support) 16 parts by mass of a retardation enhancer used in Example 20, 80 parts by mass of dichloromethane, and 20 parts by mass of methanol were charged into a mixing tank, and stirred while heating to modulate resistance. A rising agent solution. In 474 parts by mass of the cellulose acetate solution obtained in Example 20, 25 parts by mass of the retardation enhancer solution was mixed, and the mixture was sufficiently stirred to be doped. The amount of the stagnation rising agent added was 3.5 parts by mass based on 100 parts by mass of the cellulose acetate. The obtained doping was carried out by using a belt casting machine, and when the film surface temperature of the upper surface was 40 ° C, the film was dried for 1 minute, and after stripping, a drying air of 140 ° C was used to prepare a residual solvent amount of 0.3% by mass. Cellulose acetate film (CA-5). The obtained cellulose acetate film (CA-5) had a width of 1500 mm and a thickness of 65 / / m. An elliptical symmetry meter (manufactured by JASCO Corporation, M-150) was used, and when the retardation (Re) was measured at a wavelength of 590 nm, it was 4 nm. Further, when the retardation (Rth) was measured at a wavelength of 590 nm, it was 78 nm. (Saponification treatment) The obtained cellulose acetate film (CA-5) was impregnated with a 2.0 N potassium hydroxide solution (25 ° C) for 2 minutes, neutralized with an acid, washed with pure water, and dried. The surface energy of the cellulose acetate film (CA-5) was determined by the contact angle method to be 63 mN/m. 1 (Formation of oriented film) On the cellulose acetate film (CA-5) obtained by the production, an oriented film coating liquid of the following composition was applied at 28 ml/m 2 using a gold-97-1357505 line coating machine of #16. . It was dried by a warm air of 60 ° C for 60 seconds and further dried with a warm air of 90 ° C for 150 seconds. &lt;Orientation film coating liquid composition&gt; The following modified polyvinyl alcohol 10% by mass The following carboxylic acid compound (A-6) 0.08 mass%; water 371 mass% * methanol 119 mass% glutaraldehyde (crosslinking agent) 0.5% by mass

[Chemical formula] I modified polyvinyl alcohol-(CH2-CH-^3 -(〇Η2-〇Η^·0 -fCH2-CI+^- -fCHz-CH^ OH (^1] ? 〇C〇CH3 ^ CONH(CH2)2〇〇CCH=CH2 ch3 carboxylic acid compound (A-6)

CH2OCO(CH2)3COOH

HOCH

I CH2OCO(CH2)3COOCH3 Next, the modified polyvinyl alcohol is subjected to a rubbing treatment in a direction parallel to the longitudinal direction of the cellulose acetate film (CA-5). &lt;Formation of an optically anisotropic layer&gt; Disc type liquid crystal (DLC-A) 41.01kg, ethylene oxide modified propylene acid trimethylol propyl ester (V#360, Osaka Organic Chemical Co., Ltd.) 4.06kg, cellulose acetate butyrate (CAB551- 0.2 Eastman (manufactured by Chemical Co., Ltd.) 0.90kg, cellulose acetate butyrate (CAB531-1 Eastman (transliteration) - 98-1357505) 〇.23kg, photopolymerization bow I hair (IRUGAKUA-907, manufactured by CIBAGEIGY) 1.35 kg, sensitizer (Kelly-DETX (manufactured by Sakamoto Chemical Co., Ltd.) 0.45 kg, fluorine-based surfactant (F-2) of the following structure: 0.40 kg, Dissolved in 102 kg of methyl ethyl ketone, coated with the coating liquid on a oriented film using a metal wire coating machine of #3.4, and heated at a constant temperature of 130 ° C for 2 minutes to orient the disc-shaped liquid crystalline molecules. Then, under a 6 (TC environment), a 120 W/cm high-pressure mercury lamp was irradiated with UV for 1 minute to polymerize the disc-type liquid crystalline molecules. Then, cooling was performed. To the room temperature, an optically anisotropic layer was formed to form an optical compensation sheet (KS-6). [Chemical Formula 1 1] Fluorine-based surfactant (F-2) •

CeFi 7ch2ch2o-(ch2ch2o)^h When the Re-blocking 光学 of the optically anisotropic layer was measured at a wavelength of 54 6 nm, it was 4 〇 nm. Further, the angle (tilt angle) between the disk surface and the first transparent support surface was 37° on average. 'The polarizer is aligned with CROSS NICOL. When observing the mottled optical compensation sheet, it is impossible to detect the mottle from the front and from the normal to 60, even when viewed from the oblique direction. . (Manufacture of polarizing plate) The optical compensation sheet (KS-6) was adhered to one side of the polarizing film (HF-1) using a polyvinyl alcohol-based adhesive. In addition, a triacetate film (TD-8 0U: manufactured by Fuji Photo FILM Co., Ltd.) having a thickness of 8 〇 Aim was subjected to saponification treatment on one side, and polyvinyl alcohol-based adhesion was carried out in the same manner as in the saponification treatment of Example 1. 99- 1357505 agent, attached to the opposite side of the polarizing film. The transmission axis of the polarizing film and the slow axis of the cellulose acetate film (CA-5) were arranged in parallel. The polarizing plate (HB-2) was produced by arranging the transmission axis of the polarizing film perpendicular to the slow axis of the cellulose triacetate film. (Manufacturing of Bending Oriented Liquid Crystal Cell) On the glass substrate with the ITO electrode, polyimine was set as a directional film, and the oriented film was subjected to rubbing treatment. The obtained two glass plate substrates were arranged to face each other in the rubbing direction in the parallel direction, and the cell gap was set to be a liquid crystal compound (ZLI 1 1 '32, Mei Lu) which was injected with □ n (refractive index ne and no lack of difference) of 0.1 3 96. The library (transliteration) made a curved directional liquid crystal cell with a size of 20 inches. Two polarizing plates (HB-1) manufactured by the implementation of 20 were attached to each other by sandwiching the formed curved alignment liquid crystal cell. The optically anisotropic layer of the elliptically polarizing plate faces the wafer substrate, and the rubbing direction of the liquid crystal cell is arranged in an anti-parallel manner with the rubbing direction of the face-to-face optical anisotropic layer. A rectangular wave voltage of 55 Hz was applied to the liquid crystal cells, and a white standard of 2 V and black display of 5 V was displayed. The ratio of the transmittance (white display/black display) was used as a comparison, and the measurement was performed using a measuring machine (EZ: C ο ntrast 1 600 D, manufactured by EL DI Co., Ltd.) from the black display (LI) to the white display (L8). The angle of view of the stage. The evaluation of the viewing angle is based on the comparison of the image using the field of view, and the black side does not reverse the level (that is, the black display (L1) and the next order (L2) do not reverse). The opening angle of the range is 値. -100- 1357505 Table 6 Practical example Viewing angle (polarizing plate) (Comparatively 10 or more, the black side is not in the range of 11 turns) Up and down Left and right Embodiment 20 80. 80. 80° (HB-1) (Note) The reverse of the black side: refers to the reverse between L 1 and L2. (Mottle evaluation on the panel of the liquid crystal display device) The display panel of the liquid crystal display device of Example 20 was a comprehensive intermediate tone, and the mottle was evaluated. Example 20 was observed from all directions and no plaque was found. (Evaluation using TN liquid crystal cell) Peeling setting. In liquid crystal display device. (A Q U Ο S LC20C1S '

One of Sharp's products is a pair of polarizing plates, and the liquid crystal display device uses tn liquid crystal cells. Alternatively, the polarizing plate (HB-2) obtained in Example 6 was placed such that the optical compensation sheet (KS-6) was on the liquid crystal cell side, and one of the viewer side and the back side was attached using an adhesive. The transmission axis of the observer-side polarizing plate and the transmission axis of the backlight-side polarizing plate are arranged in a 〇 type. In the liquid crystal display device produced, a viewing angle (eight-stage from the black display (L1) to the white display (L8) was measured using a measuring machine (EZ-Contrast 160 D, manufactured by ELDIM Co., Ltd.). -101 - 1357505 Table 7 Actual example Viewing angle (polarizing plate) (Comparatively 10 or more, the range of the black side will not be reversed) Up and down Left and right Embodiment 21 80. 60. 80. (HB-2) (Note) Reverse of the black side: Refers to reverse between L1 and L2. (Mottle evaluation on the panel of the liquid crystal display device) The display panel of the liquid crystal display device of Example 2 was a comprehensive intermediate tone, and the mottle was evaluated. Example 21 was observed from all directions and no mottle was observed. (Examples 22 to 27) In the same manner as in Example 16 except that the carboxylic acid compound (A) described in the following Table 8 was used in the same manner as the carboxylic acid compound of the optically anisotropic layer. Each of the optical compensation sheets was produced, and each of the polarizing plates was produced in the same manner as in the above (manufacture of a polarizing plate) (Example 20). -102- 1357505

Table 8 Example Polarizing plate carboxylic acid compound (A) 22 HB-3 (A-7) OH 1 HOCH2CHCH2OOC(CH2)2SCH2COOH 23 HB-4 (A-8) C00CeH-i3 pjr-COOH ΗΟΗ20; Ί^ 24 HB- 5 (Α-9) Citric acid 25 HB-6 (A-10) Citric acid monopropyl ester (mixture) 26 HB-7 (A-11) NHCOC4H9 HS{CH2)2CHCOOH 27 HB-8 (A-12 ) ^Y^CH2COOH CH2COOC5HH 〇

The obtained polarizing plates were subjected to the same evaluation results as in the example (20), and all of the samples showed the same excellent performance as in the example (20). -103-

Claims (1)

1357505 k set (history; color replacement Amendment to Patent No. 093 112131, "Optical Compensation Sheet, Polarizing Plate, and Liquid Crystal Display Device Using the Same" (Revised March 16, 2011) X. Application for Patent Model No. 1 - Manufacturing Method of Optical Compensation Sheet The method for producing an optical compensation sheet which is formed by laminating a transparent support, an alignment film, and an optically anisotropic layer is characterized in that at least one of the optically anisotropic layer and the alignment film contains at least one of a polar group of at least one type of organic acid' wherein the optically anisotropic layer is coated with a solution containing an organic acid to form 'the organic acid system contains at least one selected from the group consisting of -OH, _SH, -NHR, -CONHR, - S02NHR, -HNCONHR, -NHS02NHR, NHCORi, -NHS02r1, -OOCNHR1 and -NHCOOR'R represent a hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group, and R1 represents an aliphatic group, an aromatic group or a polar group of a heterocyclic group. 2. The method of manufacturing an optical compensation sheet according to the first aspect of the invention, wherein the transparent support is applied with an adhesive adhesion treatment, and the composition for forming an alignment film is coated to form an alignment film thereon. A method for producing an optical compensation sheet comprising a coating liquid containing a liquid crystal compound containing Φ, wherein the composition for forming an alignment film contains at least one organic carboxylic acid compound having at least one polar group. 3. An optical compensation sheet which is an optical compensation sheet laminated in the order of a transparent support, an orientation film, and an optically anisotropic layer, wherein the optically anisotropic layer contains at least one selected from the group consisting of -OH, -SH, -NHR, -CONHR, -S02NHR, -HNCONHR, -NHS02NHR, -NHCOR1, -NHSO2R1, -OOCNHR1 and -NHCOOR^R Table 1357550 An organic acid having a polar group of a hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group, and R1 is an aliphatic group, an aromatic group or a heterocyclic group. 4. The optical compensation sheet of claim 3, wherein the organic acid is a carboxylic acid. 5. The optical compensation sheet of claim 3, wherein the organic acid is a polycarboxylic acid having at least one hydroxyl group, and at least one carboxyl group of the polycarboxylic acid is esterified. (6) An optical compensation sheet which is formed on a transparent support and which is subjected to an adhesion imparting treatment, and then coated with an oriented film forming composition to form an alignment film, and a coating liquid containing a liquid crystal compound is applied thereon to form an optical An optical compensation sheet of an anisotropic layer, wherein the composition for forming an alignment film is at least one organic carboxylic acid compound having at least one polar group, wherein the at least one polar group is selected from the group consisting of -OH and -SH -NHR, .-CONH2, -S02NH2, -HNCONHR, -NHS02NHR, and -NHSOzR'R represent a hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group, and R1 represents an aliphatic group or an aromatic group. Or a base of a heterocyclic group. 7. The optical compensation sheet according to the third or sixth aspect of the invention, wherein the orientation film is a coating composition for forming an oriented film, and a cured film formed by drying, the composition for forming the coating alignment film. The material contains at least one of polyvinyl alcohol and modified polyvinyl alcohol as a main component. The optical compensation sheet of claim 3, wherein the transparent support system is subjected to alkali saponification treatment using an alkali solution on the surface of the oriented film side. The optical compensation sheet of claim 8, wherein the alkali solution contains at least a water-soluble organic solvent, and a surfactant and/or phase 1357505 Correct the solvent. 10. The optical compensation sheet of claim 8, wherein the alkali saponification treatment is applied to the transparent support by applying an alkali solution. 11. The optical compensation sheet of claim 3, wherein the transparent support has a film thickness of 30 to 80/im «· 12. as claimed in claim 3 or 6 An optical compensation sheet in which an optically anisotropic layer is applied on a surface of a film having an orientation of a coating film applied to a surface of a film of 2.0 to 6.9 and a pH in a coating direction of ±0.3 or less. The optical compensation sheet according to claim 3, wherein the optically anisotropic layer is obtained by coating a coating liquid containing a liquid crystal-containing compound, and the coating liquid contains fluorine-containing interface activity. Agent. The optical compensation sheet according to claim 3, wherein the optically anisotropic layer is obtained by coating a coating liquid containing the liquid crystal compound, the coating liquid containing at least one cellulose ester, The cellulose ester is 0.1% by mass or more and 3.0% by mass or less based on the liquid crystal compound. The optical compensation sheet according to the third or sixth aspect of the invention, wherein the transparent support has a Re retardation value in the range of 〇 to 2 〇〇 nm, and Rth Blocking lanthanides is in the range of 70 to 400 nm. The optical compensation sheet according to item 3 or item 6 of the patent application, wherein the transparent support system is a cellulose acetate film. The optical compensation sheet according to claim 16, wherein the cellulose acetate film is vinegar 1357550 having a degree of acetylation of 59.0 to 61.5%, and: '{b' modified acid cellulose Further, it is contained in an amount of from 0.01 to 20 parts by mass based on 100 parts by mass of the cellulose acetate, and at least two aromatic compounds having an aromatic ring. 1 8 · A polarizing plate which is a polarizing plate laminated in the following order: transparent protection, film, polarizing film, and optical compensation sheet, wherein the optical compensation sheet sequentially contains a transparent support, an oriented film, and an optical anisotropy An optically anisotropic layer of a compound, wherein the optical compensation sheet is an optical compensation sheet in item 3 or 6. 19. A liquid crystal display device comprising a polarizing film and a polarizing plate having two transparent protective films on both sides thereof, and a liquid crystal display device disposed on both sides of the liquid crystal cell, characterized by a liquid crystal cell and a polarizing plate At least one of the two transparent protective films disposed between the two is an optical compensation unit in item 3 or item 6.