Abstract: The laminated body of the present invention includes an optically anisotropic layer, an alignment film, and an adhesive agent layer which are laminated in this order. The optically anisotropic layer has maximum absorptions at a wavelength in a range of not less than 300 nm and not more than 380 nm and satisfies Formula (Y) below. “50<(1?P?/P0)×100<85 . . . (Y)” wherein: P? represents a P value in a surface of the optically anisotropic layer on which surface the alignment film is laminated and which surface is perpendicular to a thickness direction; and P0 represents the P value of the polymerizable liquid crystal compound.

Abstract: The present invention provides, as a composition containing a smectic liquid crystal compound which can be used for production of a homogeneous optical film at a temperature around room temperature, a composition containing a smectic liquid crystal compound having a 1,4-cyclohexyl group, which smectic liquid crystal compound having the 1,4-cyclohexyl group contains (i) 100 parts by mass of a smectic liquid crystal compound having a trans-1,4-cyclohexyl group and (ii) 0.1 parts by mass to 10 parts by mass of a smectic liquid crystal compound having a cis-1,4-cyclohexyl group.

Abstract: An object of the present invention is to solve the problems which can be peculiarly generated in a coating-type optical film, and provide an optical film which hardly causes deterioration in optical performance with time, a display device equipped with the optical film, and a process for producing the optical film, and there is provided a polarizing plate having a diffusion preventing layer A having the thickness of 0.05 ?m to 3 ?m, a polarizing film comprising a polymer of a polymerizable liquid crystal and a dichroic coloring matter, and a diffusion preventing layer B having the thickness of 0.05 ?m to 3 ?m, in this order.

Abstract: An object is to solve the problems which can be peculiarly generated in a coating-type optical film, and provide an optical film which hardly causes deterioration in optical performance over time. A display device equipped with the optical film, and a process for producing the optical film are also provided. There is provided a polarizing plate having a diffusion preventing layer A having a thickness of 0.05 ?m to 3 ?m, a polarizing film containing a polymer of a polymerizable liquid crystal and a dichroic coloring matter, and a diffusion preventing layer B having a thickness of 0.05 ?m to 3 ?m, in this order.

Abstract: To provide an optical film excellent in suppression of light leakage in black display. An optical film having at least two phase difference layers and having optical properties represented by the formulae (30) and (31) is provided: ?2.0?a*?0.5??(30) ?0.5?b*?5.0??(31) wherein, a* and b* represent the chromatic coordinate in the L*a*b* color system.

Abstract: An elliptically polarizing plate includes a polarizing plate and a retardation plate. The elliptically polarizing plate satisfies the following: 0.8?P(450)/P(650)?1.2 P(550)?0.7 Re(450)<Re(550)<Re(650) 0.05<1?P(450)<0.3 Re(550) and Re(650) represent the front retardation at wavelengths (?) of 450 nm, 550 nm and 650 nm, respectively. P(450), P(550) and P(650) represent the elliptically polarized light states (P(?)) at wavelengths (?) of 450 nm, 550 nm and 650 nm, respectively. P(?)=tan {sin?1(I1(?)×sin ?(?)×sin 2??I2(?)×sin ?(?)×cos 2?)/I2(?))/2}. I1(?)=(10?A1(?)?10?A2(?))/2. I2(?)=(10?A1(?)+10?A2(?))/2. ?(?)=Re(?)/?×2?. A1(?) and A2(?) represent the absorbance in the transmission and adsorption axis directions, respectively, of the polarizing plate at wavelength (?). Re(?) represents the front retardation at wavelength (?). ? represents the angle formed by the polarizing plate absorption axis and the retardation plate slow axis.

Abstract: A polarizing plate including a substrate and a polarizer is provided. The polarizer has a polarizing layer having a thickness of 5 ?m or less in which a dichroic dye is oriented. The absorbance in the absorption axis direction (A1) of the polarizer at a wavelength of 380 to 760 nm is 0.3 or more and 1.5 or less, and the absorbance in the transmission axis direction (A2) is 0.001 or more and 0.15 or less.

Abstract: An elliptically polarizing plate includes a polarizing plate and a retardation plate. The elliptically polarizing plate satisfies the following: 0.8?P(450)/P(650)?1.2 P(550)?0.7 Re(450)<Re(550)<Re(650) 0.05<1?P(450)<0.3 Re(550) and Re(650) represent the front retardation at wavelengths (?) of 450 nm, 550 nm and 650 nm, respectively. P(450), P(550) and P(650) represent the elliptically polarized light states (P(?)) at wavelengths (?) of 450 nm, 550 nm and 650 nm, respectively. P(?)=tan {sin?1(I1(?)×sin ?(?)×sin 2??I2(?)×sin ?(?)×cos 2?)/I2(?))/2}. I1(?)=(10?A1(?)?10?A2(?))/2. I2(?)=(10?A1(?)+10?A2(?))/2. ?(?)=Re(?)/?×2?. A1(?) and A2(?) represent the absorbance in the transmission and adsorption axis directions, respectively, of the polarizing plate at wavelength (?). Re(?) represents the front retardation at wavelength (?). ? represents the angle formed by the polarizing plate absorption axis and the retardation plate slow axis.

Abstract: To provide an optical film excellent in suppression of light leakage in black display. An optical film having a first phase difference layer and a second phase difference layer, wherein the second phase difference layer has an optical property represented by the formula (3), the second phase difference layer has a thickness of 0.2 ?m to 2.0 ?m, and further, the optical film has optical properties represented by the formulae (1) and (2): Re(450)/Re(550)?1.00??(1) 1.00?Re(650)/Re(550)??(2) nx?ny<nz??(3).

Abstract: Disclosed is a retardation film which shows a high light selective absorbency to visible rays having short wavelengths near 400 nm to have a high light resistance, and which can give, when used in a display device, good display properties to the display device. This film is a retardation film, satisfying all of the following formulae (1) to (4): 2?A(380) (1), 0.5?A(400) (2), 0.4?A(420)/A(400) (3), and 100 nm?Re(550)?170 nm (4), in which each A(?) represents the absorbance of the film at a wavelength ? nm, and Re (550) represents the in-plane retardation value of the film to a light ray having a wavelength of 550 nm.

Abstract: An object is to solve the problems which can be peculiarly generated in a coating-type optical film, and provide an optical film which hardly causes deterioration in optical performance over time. A display device equipped with the optical film, and a process for producing the optical film are also provided. There is provided a polarizing plate having a diffusion preventing layer A having a thickness of 0.05 ?m to 3 ?m, a polarizing film containing a polymer of a polymerizable liquid crystal and a dichroic coloring matter, and a diffusion preventing layer B having a thickness of 0.05 ?m to 3 ?m, in this order.

Abstract: A patterned polarizing film is provided for obtaining a thin patterned circular polarizing plate having a superior anti-reflection property. The film includes a substrate and a patterned liquid crystal cured layer laminated thereon. The layer contains a polymer of a polymerizable liquid crystal compound(s) and a dichroic dye. The patterned polarizing film includes a region (A) having a degree of polarization of 10% or lower and a single transmittance of 80% or higher, and a region (B) having a degree of polarization of 90% or higher and a single transmittance of 40% or higher.

Abstract: As a liquid crystal cured film that is small in amount of decrease in phase difference value which decrease is caused in a case where the liquid crystalline cured film is exposed to a high-temperature environment, provided is a liquid crystal cured film containing a polymerizable liquid crystal compound that is polymerized, the liquid crystal cured film having a maximum absorption at a wavelength in a range of not less than 300 nm and not more than 380 nm, and satisfying the following Formula (Y): (1?P?/P0)×100?73 . . .

Abstract: The laminated body of the present invention includes an optically anisotropic layer, an alignment film, and an adhesive agent layer which are laminated in this order. The optically anisotropic layer has maximum absorptions at a wavelength in a range of not less than 300 nm and not more than 380 nm and satisfies Formula (Y) below. The laminated body brings about an effect of hardly causing a decrease in optical characteristic of the optically anisotropic layer in a case where the laminated body is exposed to a high-temperature environment. “50<(1?P?/P0)×100<85 . . . (Y)” wherein: P? represents a P value in a surface of the optically anisotropic layer on which surface the alignment film is laminated and which surface is perpendicular to a thickness direction; and P0 represents the P value of the polymerizable liquid crystal compound.

Abstract: Provided is (i) a composition containing at least one kind of polymerizable liquid crystal compound and at least one kind of photopolymerization initiator, the at least one kind of photopolymerization initiator having (i) a maximum absorption at wavelength ?(A) and (ii) a maximum absorption at wavelength ?(B), the at least one kind of polymerizable liquid crystal compound and the at least one kind of photopolymerization initiator satisfying the following: 20 nm<?(B)??max(LC); or 20 nm<?max(LC)??(A), wherein ?max(LC) represents a wavelength at which the at least one kind of polymerizable liquid crystal compound has a maximum absorption, the composition being a composition from which an optically anisotropic layer that hardly has a transfer defect during a transfer is capable of being produced, and (ii) a display device and the like each including the optically anisotropic layer produced from the composition.

Abstract: The present invention provides, as a composition containing a smectic liquid crystal compound which can be used for production of a homogeneous optical film at a temperature around room temperature, a composition containing a smectic liquid crystal compound having a 1,4-cyclohexyl group, which smectic liquid crystal compound having the 1,4-cyclohexyl group contains (i) 100 parts by mass of a smectic liquid crystal compound having a trans-1,4-cyclohexyl group and (ii) 0.1 parts by mass to 10 parts by mass of a smectic liquid crystal compound having a cis-1,4-cyclohexyl group.

Abstract: To provide an optical film excellent in suppression of light leakage in black display. An optical film having a first phase difference layer and a second phase difference layer, wherein the second phase difference layer has an optical property represented by the formula (3) and the optical film has optical properties represented by the formulae (1), (2) and (30): Re(450)/Re(550)?1.00??(1) 1.00?Re(650)/Re(550)??(2) nx?ny<nz??(3) 0.001<|Rth(550)/Re(550)|<0.2??(30).

Abstract: Optical film having a first phase difference layer and a second phase difference layer, wherein the second phase difference layer having an optical property represented by the formula (3), and the optical film has optical properties represented by the formula (1) and the formula (2). Re(450)/Re(550)?1.00(1)1.00?Re(650)/Re(550)(2)nx?ny<nz(3), wherein, Re(450) represents the in-plane phase difference value at a wavelength of 450 nm, Re(550) represents the in-plane phase difference value at a wavelength of 550 nm, and Re(650) represents the in-plane phase difference value at a wavelength of 650 nm, nx represents the principal refractive index in a direction parallel to the film plane, ny represents the refractive index in a direction parallel to the film plane and orthogonally-crossing the direction of nx, nz represents the refractive index in a direction vertical to the film plane, in an index ellipsoid formed by the phase difference layer.

Abstract: The present invention provides a method for producing an elongate polarizer plate having an absorption axis in a direction of 45°±15° relative to the longitudinal direction of the elongate polarizer plate. Provided is a method for producing a polarizer plate including a step of forming, on an elongate substrate, an elongate polarization film having an absorption axis in a direction of 45°±15° to the longitudinal direction of the elongate substrate. The above-mentioned production method further includes a step of forming, on an elongate substrate, an elongate orientation film having an orientation regulating force direction of 45°±15° to the longitudinal direction of the elongate substrate, and can perform the elongate orientation film formation step and the elongate polarizer plate formation step in this order.

Abstract: A method for producing a long retardation film having an optical axis in an oblique direction relative to the length direction of the long retardation film is provided.