Abstract:
A cellulose acylate film, containing at least: a cellulose acylate; and a compound represented by the following Formula (I): wherein R1, R3 and R5 each independently designate a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, or an aromatic group, which groups may have a further substituent; with the proviso that at least one of R1, R3 and R5 is an alkyl group substituted with a group having a ring structure or a cycloalkyl group, and the total number of the ring structures existing in R1, R3 and R5 is 3 or more.
Abstract:
An optical film including cellulose acylate and a compound represented by General Formula (I) described below, a polarizing plate, and a liquid crystal display device; R1 and R3 represent hydrogen atoms, alkyl groups having 1 to 20 carbon atoms, cycloalkyl groups having 3 to 20 carbon atoms, alkenyl groups having 2 to 20 carbon atoms, or aromatic groups having 6 to 20 carbon atoms. R5 represents a hydrogen atom, an unsubstituted alkyl group having 1 to 20 carbon atoms, a cycloalkyl group having 3 to 20 carbon atoms, an alkenyl group having 2 to 20 carbon atoms, or an aralkyl group represented by -L5-Ar5 (L5 represents an alkylene group having 1 to 20 carbon atoms and Ar5 represents an aromatic group having 6 to 20 carbon atoms). Here, the total of ring structures present in R1, R3, and R5 is one or two.
Abstract:
A film of 15 to 45 μm thick containing a cellulose acylate and an aromatic ester oligomer having a repeating unit derived from a dicarboxylic acid and a repeating unit derived from a diol, in which the repeating unit derived from a dicarboxylic acid has a ratio m/n of from 0/10 to 3/7, m and n represent a molar proportion of a repeating unit derived from an aliphatic dicarboxylic acid and an aromatic dicarboxylic acid, respectively, and the film satisfies |Rth(590)|≦50 nm; has a good appearance and is free of deterioration in display performance when the film with a thin thickness is produced in the form of a roll, achieves a high pencil hardness by imparting a high Knoop hardness to the film, even with a hard coat layer provided, and is free of display unevenness on installing the film in a liquid crystal display device.
Abstract:
A polarizing plate includes at least: a polarizer layer containing a polyvinyl alcohol-based film dyed with iodine; and one or more other layers except for the polarizer layer, in which the polarizer layer contains a compound which has polyiodide ion I5− reduction capability in iodide compound- and iodine-containing solutions, and at least one of the one or more other layers contain a compound which has polyiodide ion I5− formation capability in an iodide compound-containing solution.
Abstract:
A cellulose acylate film, containing: at least two or more of chelating agents having different pKa values from one another, wherein the chelating agents comprise: a chelating agent A having at least one functional group whose acid dissociation constant pKa, measured at 25° C. in a mixed solvent having a mixing ratio of tetrahydrofuran 60 ml/water 40 ml, is 6 or less; and a chelating agent B having at least one functional group of a conjugate acid whose pKa, measured at the same condition, is 7 or more; and a cellulose acylate, and wherein the number of bright spots of the cellulose acylate film is equal to or less than 500/cm2; a polarizing plate protective film, a polarizing plate and a liquid crystal display using the same.
Abstract translation:一种纤维素酰化物膜,其包含:至少两种或更多种彼此具有不同pKa值的螯合剂,其中所述螯合剂包含:具有至少一个官能团的螯合剂A,其酸解离常数pKa在25℃下测定 在四氢呋喃60ml /水40ml的混合比例的混合溶剂中为6以下; 和具有至少一种共轭酸官能团的螯合剂B,其在相同条件下测定的pKa为7以上; 纤维素酰化物,纤维素酰化物膜的亮点数为500 / cm 2以下; 偏振片保护膜,偏振片和使用其的液晶显示器。
Abstract:
An optical film, has a film thickness of 15 μm to 45 μm, 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 display device for outdoor use has a display unit, and the display unit includes a polarizing plate having a light absorbing layer and a polarizer layer on a viewing side surface, the light absorbing layer includes a first light absorbing agent having at least one absorption peak in a wavelength range of from 280 to less than 360 nm and a second light absorbing agent having at least one absorption peak in a wavelength range of from 360 to 400 nm, and the light absorbing layer is disposed closer to the viewing side than the polarizer layer.