Abstract: A polarizing film formed by orienting organic dyes composed of a lyotropic liquid crystal compound, which comprises an acenaphtho[1,2-b]quinoxaline-base compound, wherein the content of the acenaphtho[1,2-b]quinoxaline-base compound is less than 10 weight parts with respect to 100 weight parts of the organic dyes.

Abstract: Provided is a polarizer protective film of thin type, which has excellent heat resistance and excellent transparency as well as excellent UV-absorbing ability, has good external appearance of a film surface, and can be stably produced by film forming. The polarizer protective film of the present invention includes a resin layer (A) and a resin layer (B1) in the stated order, in which the resin layer (A) is a resin layer containing a (meth) acrylic resin as a main component and contains a UV absorber at a ratio of 0.5 to 10 wt % with respect to a resin component contained in the resin layer (A), and the resin layer (B1) is a resin layer containing a (meth) acrylic resin as a main component and contains a UV absorber at a ratio of more than 0 wt % and 2 wt % or less with respect to a resin component contained in the resin layer (B1).

Abstract: A surface of a substrate is coated with a sol solution containing metal alkoxide. A gelled material of the sol solution is pressed against a molding tool while the gelled material is kept soft. Thus, the gelled material is molded. Then, the gelled material is hardened. As a result, protrusions of the hardened gel layer 14 are formed on the substrate so that an irregular texture substrate is formed. A multilayer thin film constituted by a plurality of layers of at least two kinds of materials with different refractive indexes is laminated on a surface of the irregular texture substrate.

Abstract: A retardation film manufactured as a long roll film having a slow axis in a lateral direction of the long roll film, wherein an elastic modulus in an in-plane slow axis direction ?s and an elastic modulus in an in-plane fast axis direction ?f meet Condition (1), the in-plane fast axis direction being perpendicular to the in-plane slow axis direction: 1.26??s/?f?2.60??Condition (1).

Abstract: Disclosed is a cellulose ester optical film characterized by containing a cellulose ester, a polymer (a) defined below and a compound (b) defined below. (a) a polymer obtained by copolymerizing an ethylenically unsaturated monomer having a partial structure represented by the general formula (1) below in a molecule and at least one ethylenically unsaturated monomer (b) at least one compound selected from the group consisting of carbon radical scavengers, phenol compounds and phosphorus compounds. (In the formula, R1, R2 and R3 independently represent an optionally substituted aliphatic group, an optionally substituted aromatic group or an optionally substituted heterocyclic group; or alternatively any two of R1, R2 and R3 may combine and form a ring structure together with a nitrogen atom or with a nitrogen atom and a carbon atom to which they are bonded to.

Abstract: A copolymer contains 10 to 69 mol % of a structural unit derived from propylene, 1 to 50 mol % of a structural unit derived from at least one ?-olefin having a carbon number of from 4 to 20 and 30 to 89 mol % of a structural unit derived from at least one cyclic olefin represented by the formula (1) as defined herein, and has a weight average molecular weight of from 50,000 to 1,000,000.

Abstract: An adhesive of the invention for polarizing plates used for forming an adhesive layer in a polarizing plate in which a polarizer and a transparent protective film is are adhering with each other via the adhesive layer, wherein the adhesive for polarizing plates is an aqueous solution containing a polyvinyl alcohol-based resin having an acetoacetyl group and a crosslinking agent, and the aqueous solution has a pH of 4.3 or less. The adhesive of the invention for polarizing plates is good in durability and long in pot life.

Abstract: Disclosed is an optical film having good haze properties, wherein bleedout hardly occurs and deformation problems of the raw material film such as horseback defects and projection defects do not occur even when the film is stored for a long time. Also disclosed are a method for producing such an optical film, a polarizing plate using the optical film, and a liquid crystal display using the polarizing plate. Specifically disclosed is an optical film characterized by containing at least one polymer compound derived from a compound represented by the following general formula (1). [chemical formula 1] (1) (In the formula, R1-R6 independently represent a hydrogen atom or a substituent, and R1 and R2 may combine together to form a substituent bound by a double bond. In this connection, at least one of R1-R6 represents a group having a polymerizable group as a partial structure.

Abstract: A liquid crystal panel of the present invention includes at least a liquid crystal cell, a first polarizer disposed on one side of the liquid crystal cell, a second polarizer disposed on the other side of the liquid crystal cell and a retardation film (A) disposed between the liquid crystal cell and the first polarizer, wherein the retardation film (A) contains a thermoplastic polymer having at least a substituent (a) represented by the following formula (I) and its in-plane retardation value (Re[750]) at a wavelength of 750 nm is larger than its retardation value (Re[550]) at a wavelength of 550 nm. The liquid crystal panel has such an effect that it reduces coloring of characters or images and a color shift even if a screen is viewed from any direction at an angle range of 360°.

Abstract: A chromonic nanoparticle mixture prepared by combining (i) a continuous water-soluble polymer phase and (ii) a discontinuous chromonic phase comprising a chromonic material; and non-covalently crosslinking the resulting chromonic nanoparticles with a polyvalent cation salt.

Abstract: Disclosed is a composite polarizing plate (10)wherein a transparent protection film (12) is bonded to one side of a polarizer (11), and a transparent resin film (13), a primer layer (14) and a coating retardation layer (15) containing an organic modified clay composite and a binder resin are formed on the other side of the polarizer (11) in this order. This composite polarizing plate is produced by a process comprising a step for forming the primer layer (14) on the surface of the transparent resin film (13), a step for forming the coating retardation layer (15) on the surface of the primer layer (14), and a step for bonding the transparent protection film (12) to one side of the polaizer (11) and bonding the transparent resin film (13) provided with the coating retardation layer (15) to the other side of the polarizer (11) with the transparent resin film (13) side facing the polarizer, respectively using an adhesive.

Abstract: A polarizing plate is provided that has excellent polarization properties and high surface hardness and can have a reduced thickness. The polarizing plate includes a polarizer and a cured resin layer. The cured resin layer is formed directly on at least one surface of the polarizer. The cured resin layer is formed of a solventless photocurable composition containing the following components (A), (B), and (C): (A) at least one of a polyfunctional acrylic monomer and a polyfunctional methacrylic monomer; (B) a photocurable prepolymer; and (C) a photopolymerization initiator.

Abstract: A polarizer of the present invention is composed of a film comprising a structure in which fine metallic particles is dispersed in a polymer matrix is characterized in that a polymer forming the polymer matrix is a translucent polymer having a transmittance of 88% or more when measured thereof with a thickness of 1 mm and the film is uniaxially stretched. The polarizer is good in heat resistance and transmittivity.

Abstract: The present invention relates to a polarizing plate with pressure-sensitive adhesive type optical compensation layer, comprising a polarizing plate with optical compensation layer (1) and an optical compensation film (2) bonded to each other via a pressure-sensitive adhesive layer A, and a pressure-sensitive adhesive layer B at the opposite side of the optical compensation film (2) to the pressure-sensitive adhesive layer A, wherein both the pressure-sensitive adhesive layers A and B have a tensile elasticity of 0.1 MPa or less at 23° C. This polarizing plate with pressure-sensitive adhesive type optical compensation layer is capable of minimizing display irregularity even when placed in a high-temperature or high-temperature and high-humidity atmosphere.

Abstract: Provided is a cellulose ester film including a polycondensed ester which is obtained from a mixture containing an aromatic dicarboxylic acid, an aliphatic dicarboxylic acid, an aliphatic diol having an average carbon atom number of from 2.0 to 3.0 and a monocarboxylic acid, and both terminals of which are a monocarboxylic acid ester derivative.

Abstract: A liquid crystal compound represented by the formula CH2?CR1—COO-(L)k-E1-E2-E3-E4-R2 wherein R1: a hydrogen atom or a methyl group; R2: a C1-8 alkyl group; k: 0 or 1; L: —(CH2)pO— or —(CH2)q— (wherein each of p and q which are independent of each other, is an integer of from 2 to 8); E1: a 1,4-phenylene group; E2, E3, E4: each independently a 1,4-phenylene group or a trans-1,4-cyclohexylene group and at least one of E2 and E3 is a trans-1,4-cyclohexylene group, provided that the 1,4-phenylene group and trans-1,4-cyclohexylene group in E1 to E4, may be such that a hydrogen atom bonded to a carbon atom in each group may be substituted by a fluorine atom, a chlorine atom or a methyl group. To provide a novel liquid crystal compound for preparing an optical element which can exhibit a proper Rd value depending upon usable wavelength and application and which is excellent in durability against a blue laser beam.

Abstract: A cellulose acylate film comprising a compound having a hydrogen-donating group capable of forming a hydrogen bond and an aromatic ring, and a compound represented by the following formula: wherein R2, R4, and R5 represent H or a substituent, R11 and R13 represent H or an alkyl group, L1 and L2 represent a single bond or a divalent linking group, Ar1 represents an arylene group or a divalent aromatic heterocyclic group, Ar2 represents an aryl group or a monovalent aromatic heterocyclic group, n represents an integer of 3 or more.

Abstract: The present invention relates to an optical film comprising an aromatic based unit having chain having the hydroxy group containing portion and aromatic moiety; and a styrene-based unit comprising one or more styrene-based derivatives, and has absolute values of in-plane retardation (Rin) and thickness retardation (Rin) of 10 nm or less regardless of stretching, and a polarizing plate and an information technology apparatus including the same.

Abstract: An optical compensatory film comprising an optically anisotropic layer composed of a liquid crystal composition including a liquid crystal compound, wherein the liquid crystal composition contains a copolymer including a repeating unit derived from a monomer of formula [1] and a repeating unit derived from a monomer of formula [2]: wherein R0 represents a hydrogen atom, a halogen atom or an alkyl group, L represents a divalent linking group, and n represents an integer of 1-18; wherein R11 represents a hydrogen atom, a halogen atom or an alkyl group, L11 represents a divalent linking group, and R13, R14 and R15 represents a hydrocarbon group or an aromatic heterocyclic group.

Abstract: An optical material including a colored optically anisotropic layer, the colored optically anisotropic layer having at least one maximum absorption wavelength with a nonpolarized light transmittance of 30 percent or lower in a wavelength range of 430 to 700 nm, wherein the absorbance Amax at the polarization of maximum absorbance and the absorbance Amin at the polarization of minimum absorbance of the colored optically anisotropic layer satisfy the following relation at the maximum absorption wavelength: 1.0?Amax/Amin?1.4, and the in-plane retardation of the colored optically anisotropic layer is greater than or equal to 10 nm and less than 1,000 nm, which can be employed as a material for forming a color filter having optical compensation capability.

Abstract: A dichroic dye composition, containing at least one kind of azo dye represented by formula (I) that has a liquid crystallinity: wherein R1, R2, R3, R4, X1 and X2 each independently represent a hydrogen atom or a substituent; A1 is a substituted or unsubstituted phenyl group, a substituted or unsubstituted naphthyl group, or a substituted or unsubstituted aromatic heterocyclic group; B1 is a divalent substituted or unsubstituted aromatic hydrocarbon group or a divalent substituted or unsubstituted aromatic heterocyclic group; n represents an integer of 1 to 5; and at least one of B1s represents a phenylene group having an alkyl group.

Abstract: The present invention provides a polarizer that includes a supporting member and a liquid crystal polarizing layer that is coated on the supporting member. The liquid crystal polarizing layer includes liquid crystal molecules that are arranged in a predetermined direction and polarizing molecules that are combined with the liquid crystal molecules in order to absorb light oscillating in predetermined direction. The resulting polarizer is thin and highly effective.

Abstract: A polarizing plate is provided in which adhesion properties between a polarizer and a protection film are improved and in which the optical properties of the polarizer are stable under the influence of moisture and the like. Specifically, in polarizing plates 4 and 12, protection films 3 and 11 are formed on at least one side of polarizers 2 and 10, respectively, by curing an energy ray-curable composition. The energy ray-curable composition contains (1) an energy ray-polymerizable compound having a bridged hydrocarbon group, a bisphenol group, a neopentyl glycol group, a trimethylolpropane group, or a pentaerythritol group and (2) a hydrolysate of a silane-based coupling agent. At least one of the polarizing plates 4 and 12 is provided on at least one side of a liquid crystal panel 1, whereby a liquid crystal device 9 is constituted.

Abstract: The present invention is to provide a polarizing plate having a retardation function while having excellent environmental resistance. The invention is concerned with a polarizing plate including a polarizer having, on at least one surface thereof, a protective film having a function as a retardation film via an adhesive layer, wherein the adhesive layer is formed of an adhesive containing a polyurethane; and the protective film is composed of a polycarbonate based resin or an amorphous polyolefin resin having a glass transition temperature in the range of from 100° C. to 180° C.

Abstract: A polarizing plate used in a vertical alignment mode liquid crystal display comprising a liquid crystal cell is disclosed, wherein the polarizing plate comprises a polarizing film and a mixed fatty acid cellulose ester film with optical biaxiality provided between the polarizing film and the liquid crystal cell, and wherein the mixed fatty acid cellulose ester film has a retardation in plane R0 of from 31 to 120 nm, and a retardation in the thickness direction Rt of from 60 to 300 nm, in which R0 is represented by the following formula (1) and Rt is represented by the following formula (2): R0=(nx?ny)×d??formula (1) Rt={(nx+ny)/2?nz}×d.

Abstract: In the present invention, provided is an optical film exhibiting less generation of horseback failure, winding core transfer and wrinkles on a film when starting winding, and also provided is a manufacturing method thereof, further together with a polarizing plate and a liquid crystal display device exhibiting high contrast. Also disclosed is an optical film possessing a cellulose ester and a UV absorbent represented by the following Formula (1): wherein R1 represents R2 represents a methyl group, a t-butyl group, a t-amyl group or a t-octyl group; R3 represents a substituent; each of R4 and R5 represents a hydrogen atom or a substituent; m is an integer of 0-3; and n is an integer of 0-4.

Abstract: Disclosed is a liquid-crystal display device comprising a liquid-crystal cell that comprises a pair of substrates each having an electrode layer on the facing surface thereof, and a liquid-crystal layer of a liquid-crystal material disposed between the pair of substrates, a driving circuit to impart a driving voltage to the electrode layer, a pair of polarizing elements disposed to sandwich the liquid-crystal cell therebetween, and an optically-anisotropic layer disposed between at least one (first polarizing element) of the pair of polarizing elements and the liquid-crystal cell; wherein retardation in plane at a wavelength of 450 nm, Re(450), of the optically-anisotropic layer, and retardation in plane at a wavelength of 650 nm, Re(650), thereof satisfy the condition, Re(450)/Re(650)<1.

Abstract: Microstructured optical films, assemblies of films including at least one microstructured optical film, and (e.g. illuminated) display devices including a single microstructured optical film or assembly.

Abstract: A compound useful for fabrication of retardation plates, which is represented by the formula (DI): wherein Y11 to Y13 represent methine or nitrogen; R11 to R13 represent a group of the formula (DI-A) below or others: wherein A11 to A16 represent methine or nitrogen; X1 represents oxygen, sulfur, methylene or imino; L11 represents —O—, —C(?O)—, —O—CO—, —CO—O—, —O—CO—O—, —S—, —NH—, —SO2—, —CH2—, —CH?CH—, or —C?C—; L12 represents a divalent linking group; Q11 represents polymerizable group or hydrogen.

Abstract: Cellulose acylate grains having a heat quantity of crystalline fusion of at most 10 J/g. A film prepared by melt-casting the grains is free from the problem of yellowing when built in liquid-crystal display devices.

Abstract: The main object of the present invention is to provide a color filter for a transflective type color liquid crystal display which is easily produced and capable of displaying the same color tone with both of a reflecting light and a transmitting light, and shows light scattering in a reflective light region.

Abstract: Disclosed is a method of manufacturing a biaxial polynorbornene-film having a compensation film which has good light transmittance and a uniform in-plane retardation value and can function as both a negative C-plate and an A-plate.

Abstract: A substrate for liquid crystal display device which can provide a vertically-aligned (VA)-mode liquid crystal display device having a good viewing angle dependence of contrast and at the same time can keep the production process as simple as possible is provided: a substrate for liquid crystal display device having a smoothing layer, the smoothing layer being a negative uniaxial optically anisotropic layer having an optical axis in the direction normal to the substrate surface, particularly the substrate for liquid crystal display device having a color filter layer and/or an electrode, and the negative uniaxial optically anisotropic layer having an optical axis in the direction normal to the substrate surface being directly provided on the color filter layer or the electrode.

Abstract: A colored alkali-developable photosensitive resin composition comprising an alkali-developable resin composition that contains a reaction product obtained by esterification of an epoxy-adduct with a polybasic acid anhydride (C) and then with a polyfunctional epoxy compound (D), wherein the epoxy-adduct has a structure in which an unsaturated monobasic acid (B) is added to an epoxy resin (A) represented by general formula (I) below, a coloring material (E) and a photopolymerization initiator (F).

Abstract: A cellulous acylate film in which X-ray diffractive intensity satisfies the following Formulae (I) to (V) and in which a half-value width of the peak at 2?2 is 2.8° or less as observed in the sectional view in a direction parallel to the transport direction of the film: 0.60?Ici/Ico ??Formula (I) Iam=I1+{(I3?I1)/(2?3?2?1)}×(2?2?2?1) ??Formula (II) Ic=I2?Iam ??Formula (III) Ici=Ic11/Ic12 ??Formula (IV) Ico={(Ic21/Ic22)+(Ic31/Ic32)}/2.

Abstract: A negative birefringence film prepared from a poly(aryletherimide) which is the reaction product of a dianhydride and a diamine, where the dianhydride is BisADA, ODPA, BPEDA, BPQDA, BPDA, or 6FDA, alone or a mixture with one or more of: BPDA, 6FDA, BisADA, Bis-AF-DA, BPQDA, BPEDA, and ODPA; and where the diamine is 4,4?-diaminophenyl ether, 2-trifluoromethyl-4,4?-diaminophenyl ether, 2-trifluoromethyl-2?-methyl-4,4?-diaminophenyl ether, 1,4-bis(4-aminophenoxy)benzene, 4,4?-bis(4-aminophenoxy)biphenyl, 4,4?-bis(3-aminophenoxy)biphenyl, 4,4?-bis(4-aminophenoxy)terphenyl, 4,4?-bis(3-aminophenoxy)terphenyl, 2,2-bis[4-(4-aminophenoxy)phenyl]propane, 2,2-bis[4-(4-aminophenoxy)phenyl]1,1,1,3,3,3-hexafluoropropane, 1,4-bis(4-amino-2-trifluoromethylphenoxy)benzene, 2,2?-bis(trifluoromethyl)-4,4?-diaminophenyl ether (6FODA), 4,4?-bis(4-amino-2-trifluoromethylphenoxy)biphenyl (6FOBDA), 4,4?-bis(4-amino-2-trifluoromethylphenoxy)-3,3?,5,5?-tetramethylbiphenyl, 4,4?-bis(4-amino-2-trifluoromethylphenoxy)-3,3?,5,5?-tetra(ter

Abstract: The present invention relates to an optical film that comprises an aromatic based resin comprising a chain having the hydroxy group containing portion and aromatic moiety and a polarizing plate and an information electronic device that include the same. The in-plane retardation Rin is in the range of 0 to 600 nm and the thickness retardation Rth is in the range of 0 to 400 nm.

Abstract: An optical film has a film a formed of a cyclic olefin resin, and a homeotropically orientated optical anisotropic layer b disposed on the film a. This optical film preferably satisfies the below listed formulae (1) to (3). ?600nm?Rth?200nm??(1) 0nm?R?600nm??(2) NZ?1??(3) (In formulae (1) to (3), Rth indicates the retardation in the thickness direction of the optical film at a wavelength of 550 nm; R indicates the in-plane retardation of the optical film at a wavelength of 550 nm; and NZ indicates (nx?nz)/(nx?ny)). When the optical film is used in an ISP mode liquid crystal display device, light leakage and color fading (discoloration) during black display are prevented stably for a long term, and a good viewing angle compensation effect is obtained (i.e., high contrast ratio at all angles).

Abstract: A protective film for polarizers which comprises a cellulose ester film and which, even when stored for long, suffers no film deformation failures such as ridging and protrusion failures; a process for producing the protective film; a polarizer; a process for producing the polarizer; and a liquid-crystal display employing the polarizer. The process for producing a protective film for polarizers is characterized by forming a melt comprising a cellulose ester and at least one member selected among compounds respectively represented by the following general formulae (1) to (3) into a continuous cellulose ester film by melt casting and winding the film into a roll. [Chemical formula 1] General formula (1) (In the formula, R1 to R5 each represents a substituent.) [Chemical formula 2] General formula (2) (In the formula, R1 to R6 each represents a substituent.

Abstract: Disclosed is a manufacturing method of a polarization plate. The manufacturing method includes forming a coating layer on a polarization element by coating a coating liquid obtained by dissolving polysilazane and an organic resin into a solvent, and forming an organic-inorganic hybrid layer by subjecting the coating layer to reaction curing.

Abstract: This invention provides a method for manufacturing a combination-type optical film comprising a plurality of optical films each having at least one end face at which the optical films are opposed to one another, comprising the steps of: (1) opposing the end faces of the optical films to one another with a gap provided therebetween; (2) entirely holding the opposed portions of the optical films with a holding member placed on at least one side; (3) connecting an organic solvent- or adhesive-containing vessel to one side of the gap between the opposed portions of the optical films to charge the organic solvent or the adhesive into the gap with the aid of a negative pressure state; and (4) removing the organic solvent or the adhesive under reduced pressure to bond the opposed end faces to one another.

Abstract: A novel optical compensation film is disclosed. The film comprises at least a first optically anisotropic layer and a second optically anisotropic layer, the first optically anisotropic layer having an in-plane retardation of 0 to 10 nm and an in-thickness direction retardation of ?400 to ?80 nm, the second optically anisotropic layer having an in-plane retardation of 20 to 150 nm and an in-thickness direction retardation of 100 to 300 nm, and at least either one of the first and second optically anisotropic layer being a polymer film.

Abstract: Provided is very thin liquid crystal panel and liquid crystal display apparatus with a high contrast ratio in an oblique direction, less light leakage, and a small color shift in an oblique direction. The liquid crystal panel of the present invention includes a liquid crystal cell, a first polarizer arranged on one side of the liquid crystal cell, a second polarizer arranged on the other side of the liquid crystal cell, a first optical element arranged between the first polarizer and the liquid crystal cell, and a second optical element arranged between the first optical element and the liquid crystal cell. The first optical element has substantially optically negative uniaxial property, and the second optical element exhibits a refractive index ellipsoid of nx>nz>ny, and is formed of one or more kinds of polycylic compound having a —SO3M group and/or a —COOM group (M represents a counter ion).

Abstract: The retardation film of the present invention contains a thermoplastic polymer having at least a side chain component (A) oriented in a direction substantially orthogonal to a slow axis, and the absorption edge wavelength (?cut-off) of the side chain component (A) is 330 nm or more, and an in-plane retardation value (Re[450]) at a wavelength of 450 nm is smaller than that (Re[650]) at a wavelength of 650 nm. In the above-mentioned retardation film, the difference (?Re650?450=Re[650]?Re[450]) between the in-plane retardation value (Re[650]) at a wavelength of 650 nm and the in-plane retardation value (Re[450]) at a wavelength of 450 nm is preferably 10 nm or more. The retardation film of the present invention exhibits optical characteristics in which the in-plane birefringence is large and the difference between a retardation value on the short wavelength side and a retardation value on the long wavelength side is large.

Abstract: There is provided a polymer film including a polymer; and a high molecular weight plasticizer that has a number average molecular weight of 700 to 10,000 and has a repeating unit derived from a dicarboxylic acid and a diol, wherein the dicarboxylic acid for forming the high molecular weight plasticizer includes at least one aliphatic dicarboxylic acid having 2 to 20 carbon atoms and at least one aromatic dicarboxylic acid having 8 to 20 carbon atoms, and the diol includes at least one diol selected from the group consisting of an aliphatic diol having 2 to 12 carbon atoms, an alkyl ether diol having 4 to 20 carbon atoms and an aromatic ring-containing diol having 6 to 20 carbon atoms.

Abstract: Disclosed are a retardation film including a polymer resin; and an optically anisotropic compound having a silicon group, and a polarizing plate including the retardation film. Also, disclosed is a liquid crystal display including the retardation film and/or the polarizing plate.

Abstract: The present invention relates generally to backlight modules for display devices and liquid crystal displays incorporating the same, and more particularly, to a backlight module for generating light with a single polarization state. The present invention provides a backlight module, comprising an optical cavity for reflecting and depolarizing light that is incident upon a front surface of said optical cavity and a multilayer polarizer comprising a plurality of layers. Said multilayer polarizer faces the front surface of the optical cavity and the layers are arranged in such a way that a light of polarization substantially parallel to the transmission axis of said multilayer polarizer is substantially transmitted and the light of substantially orthogonal polarization is substantially reflected by said multilayer polarizer in at least one predetermined wavelength subrange of the visible wavelength range.

Abstract: The present invention is to provide a method of compensating the wavelength dependence of birefringence of an optical part (B) which comprises using a film (a) made of a (co)polymer (?) obtained from at least one olefin selected among 4-methyl-1-pentene, 3-methyl-1-pentene, and 3-methyl-1-butene as a (co)monomer ingredient.

Abstract: A process for cellulose acylate film production which is sufficiently effective in reducing viscosity and in reducing moisture permeability. The cellulose acylate film does not suffer bleeding, i.e., the phenomenon in which a component separates out or volatilizes from the cellulose acylate film, has high flatness, is inhibited from having streak unevenness, and has high evenness. Even through long-term storage, the film does not suffer film deformation failures such as ridge failures or protrusion failures. This process for cellulose acylate film production comprises forming a cellulose acylate film by the melt casting method, and is characterized in that the cellulose acylate film contains at least one compound represented by the following general formula (1) and that the cellulose acylate film extruded from a casting dye in the film formation by melt casting is pressed between a touch roll having an elastically deformable surface and a cooling roll to produce the target film.

Abstract: Disclosed is a polarizing film (10) with an adhesive comprising a polarizing film (15) having a structure of amorphous cyclic polyolefin resin film (12)/polarizer (13)/protection film (14) and an adhesion layer (11) provided on an outer side of the amorphous cyclic polyolefin resin film (14), wherein the adhesion layer (11) has a gel content of 75 to 95 wt %. An optical laminate is obtained by bonding this polarizing film with adhesive (10) to one surface of a liquid crystal display glass cell (35). The second polarizing film (25) having a structure of protection film (22)/polarizer (23)/protection film (24) is bonded to the other surface of the glass cell (35) with interposing the second adhesion layer (21). When the protection film (22) is made from acetylcellulose, the second adhesion layer (21) is composed of a material having a low gel content.