Abstract: A polarizing plate includes: a polarizer and an optical film, in which the optical film is laminated on at least one surface of the polarizer with an adhesive containing at least one or more polymerizable compounds, and the at least one or more polymerizable compounds are not substantially infiltrated into the optical film.

Abstract: A liquid crystal display includes a liquid crystal cell having a liquid crystal layer provided between two glass substrates having a thickness of 0.5 mm or less, polarization plates provided on both surfaces of the liquid crystal cell in which absorption axes of the polarization plates provided on both surfaces of the liquid crystal cell are disposed to be orthogonal with each other, and a back light provided on a rear side of the liquid crystal cell, and a difference (D?H) between a contractive force D in an absorption axis direction of the front side polarization plate, and a contractive force H in a transmission axis direction of the rear side polarization plate is 365×10 N/m or less.

Abstract: A polarizer having at least one optical film and at least one polarizing film, wherein the absolute value of the photo-elastic coefficient C of the optical film is 2×10?12 Pa?1 or more, the optical film has an in-plane direction in which the sound propagation velocity is the maximum, and the angle between the in-plane direction in which the sound propagation velocity through the optical film is the maximum and the direction of the absorption axis of the polarizing film falls within a range of from 0° to less than 45°, is excellent in working aptitude and can prevent optical unevenness of the liquid-crystal display device accompanied by environmental changes.

Abstract: A polarization plate includes a polarizer having polarization performance; a first protective film bonded to one surface of the polarizer through an adhesive layer 1; and a second protective film bonded to the other surface of the polarizer through an adhesive layer 2, in which a modulus of elasticity of the first protective film at 25° C. and relative humidity of 60% in an absorption axis direction of the polarizer is greater than or equal to 1.0 GPa and less than 4.0 GPa, a ratio of the modulus of elasticity of the first protective film at 25° C. and relative humidity of 60% in the absorption axis direction of the polarizer to a modulus of elasticity of the first protective film at 25° C. and relative humidity of 60% in a direction orthogonal to the absorption axis of the polarizer is less than or equal to 0.8, a modulus of elasticity of the second protective film at 25° C. and relative humidity of 60% in the absorption axis direction of the polarizer is greater than or equal to 2.0 GPa and less than 5.

Abstract: A liquid crystal display includes a liquid crystal cell having a liquid crystal layer provided between two glass substrates having a thickness of 0.5 mm or less, polarization plates provided on both surfaces of the liquid crystal cell in which absorption axes of the polarization plates provided on both surfaces of the liquid crystal cell are disposed to be orthogonal with each other, and a back light provided on a rear side of the liquid crystal cell, and a difference (D-H) between a contractive force D in an absorption axis direction of the front side polarization plate, and a contractive force H in a transmission axis direction of the rear side polarization plate is 365×10 N/m or less.

Abstract: A polarizing plate according to the invention includes a first protective film; a polarizer; a second protective film; and an adhesive layer in this order, in which a moisture vapor permeability of the first protective film is less than or equal to 200 g/m2/24 hours, the second protective film contains cellulose acylate as a major component, a creep amount of the adhesive layer is less than 100 ?m, and a shrinkage force of the polarizing plate in an absorption axis direction thereof which is represented by the following expression (A) is lower than or equal to 2000 N/m. Expression (A) is the Shrinkage Force (N/m) of Polarizing Plate in Absorption Axis Direction=Elastic Modulus (GPa) of Polarizing Plate in Absorption Axis Direction×|Humidity Dimensional Change Rate (%) of Polarizing Plate in Absorption Axis Direction|×Thickness (?m) of Polarizing Plate×10.

Abstract: An optical film, has a film thickness of 15 ?m to 45 ?m, Rth (440 W, 30% RH) and “Rth (440 W, 30% RH)?Rth (440 W, 80% RH)” of the optical film satisfy Expression (1) ?20 nm?Rth (440 W, 30% RH)?5 nm and Expression (2) 0 nm?Rth (440 W, 30% RH)?RH (440 W, 80% RH)?18 nm, here, in Expressions (1) and (2), Rth (440 W, 30% RH) represents a retardation value in a film thickness direction at a wavelength of 440 nm measured at 25° C. and at a relative humidity of 30% and Rth (440 W, 80% RH) represents a retardation value in the film thickness direction at a wavelength of 440 nm measured at 25° C. and at a relative humidity of 80%; a polarizer and liquid crystal display device.

Abstract: A polarizer having at least one optical film and at least one polarizing film, wherein the absolute value of the photo-elastic coefficient C of the optical film is 2×10?12 Pa?1 or more, the optical film has an in-plane direction in which the sound propagation velocity is the maximum, and the angle between the in-plane direction in which the sound propagation velocity through the optical film is the maximum and the direction of the absorption axis of the polarizing film falls within a range of from 0° to less than 45°, is excellent in working aptitude and can prevent optical unevenness of the liquid-crystal display device accompanied by environmental changes.

Abstract: A polarizing plate according to the invention includes a first protective film; a polarizer; a second protective film; and an adhesive layer in this order, in which a moisture vapor permeability of the first protective film is less than or equal to 200 g/m2/24 hours, the second protective film contains cellulose acylate as a major component, a creep amount of the adhesive layer is less than 100 ?m, and a shrinkage force of the polarizing plate in an absorption axis direction thereof which is represented by the following expression (A) is lower than or equal to 2000 N/m. Expression (A) is the Shrinkage Force (N/m) of Polarizing Plate in Absorption Axis Direction=Elastic Modulus (GPa) of Polarizing Plate in Absorption Axis Direction×|Humidity Dimensional Change Rate (%) of Polarizing Plate in Absorption Axis Direction|×Thickness (?m) of Polarizing Plate×10.