The present invention provides a method for improving visibility of an image display device which is capable of providing an image display device excellent in anti-reflection properties and bright-field contrast even using an optical layered body including a light-transmitting substrate having in-plane birefringence, such as a polyester film. The method of the present invention is a method for improving visibility of an image display device that has an optical layered body including a light-transmitting substrate having in-plane birefringence and an optical functional layer disposed on one surface of the substrate. The method includes the step of disposing the optical layered body such that the slow axis showing a greater refractive index of the light-transmitting substrate is in parallel with the vertical direction of a display screen of the image display device.

Provided are flexible color filters and methods of manufacturing flexible color filters. An example flexible color filter comprises a transparent flexible substrate comprising a thermoset thiol-click polymer. An example method of manufacturing a flexible color filter comprises dispensing a release layer on a stiff carrier substrate; dispensing a polymer resin on the release layer; curing the polymer resin into a transparent film; fabricating a flexible color filter on the transparent film; and removing the flexible color filter from the release layer and stiff carrier substrate.

The present invention relates to a polarizing plate including a polarizer and a polyester film formed on an upper side of the polarizer, wherein the polyester film has a maximum thermal shrink angle of about 10 or less, and any one of a refractive index of x-axis direction nx at a wavelength of 550 nm and a refractive index of y-axis direction ny at a wavelength of 550 nm of about 1.65 or more; a method of preparing the polarizing plate; and a liquid crystal display apparatus comprising the polarizing plate.

The present invention provides a method for improving visibility of an image display device which is capable of providing an image display device excellent in anti-reflection properties and bright-field contrast even using an optical layered body including a light-transmitting substrate having in-plane birefringence, such as a polyester film. The method of the present invention is a method for improving visibility of an image display device that has an optical layered body including a light-transmitting substrate having in-plane birefringence and an optical functional layer disposed on one surface of the substrate. The method includes the step of disposing the optical layered body such that the slow axis showing a greater refractive index of the light-transmitting substrate is in parallel with the vertical direction of a display screen of the image display device.

A spectrometer includes a support having a bottom wall part in which a depression is provided and a side wall part, a light detection element supported by the side wall part while opposing the depression, a resin layer disposed at least on an inner surface of the depression, and a dispersive part provided in the resin layer on the inner surface of the depression. The resin layer is in contact with an inner surface of the side wall part. A thickness of the resin layer in a first direction in which the depression and the light detection element oppose each other is larger in a part in contact with the inner surface of the side wall part than in a part disposed on the inner surface of the depression.

A method of drawing a material into sheet form includes forming a preform comprising at least one material as a large aspect ratio block wherein a first transverse dimension of the preform is much greater than a second transverse dimension substantially perpendicular to the first transverse dimension. A furnace having substantially linearly opposed heating elements one spaced from the other is provided and the heating elements are energized to apply heat to the preform to create a negative thermal gradient from an exterior surface along the first transverse dimension of the preform inward toward a central plane of the preform. The preform is drawn in such a manner that the material substantially maintains its first transverse dimension and deforms across its second transverse dimension.

A resin film including a crystallizable polymer, wherein an in-plane retardation Re of the resin film is less than 5 nm, a thickness-direction retardation Rth of the resin film is less than 25 nm, and a haze HZ of the resin film is less than 3.0%.

A method for producing a cut optical film comprising a step of irradiating an optical film with CO.sub.2 laser light to cut the optical film is provided. The optical film includes an olefin resin layer that contains a cyclic olefin polymer and an ester compound. The ratio of the ester compound in the olefin resin layer is 0.1% by weight to 10% by weight. An average light absorbance of the optical film in a wavelength range of 9 m to 11 m is 0.1% or more.

A mold for a wire grid polarizer includes a hard mold and a soft mold, in which the hard mold includes a main body, an oxidization layer provided on the main body, and a SAM layer provided on the oxidization layer and including an additive, the soft mold includes a substrate, and a protrusions and depressions portion including a polymerized releasing agent, and a region that is hydrophobic in the polymerized releasing agent is arranged on a surface of the protrusions and depressions portion.

Provided are a dope solution for preparing a polarizing plate protective film by a solution casting method using an acrylic polymer with high thermal resistance and high molecular weight, and a polarizing plate protective film using the same.

The polarizing plate protective film using the dope solution according to the present invention has excellent optical properties, high tensile strength, low hygroscopic properties, and high thermal resistance, and thus, has the effects of excellent dimensional stability, and excellent adhesion with a polyvinyl alcohol film.