摘要:
PROBLEM TO BE SOLVED: To provide a long stretched film in which occurrence of wavy forms and streaks when stretching the film in an oblique direction is suppressed or occurrence of streaks when coating and curing a surface processing layer after stretching is suppressed, and which can be subjected to continuous oblique stretching, to provide a method for producing the long stretched film, and to provide a long polarizing plate and a liquid crystal display device provided with the stretched film.SOLUTION: In the method for producing the long stretched film in which a parallel slow axis has angle variations within the range of ±0.5° with respect to the width direction of the film, stretching is performed in an oblique direction in such a manner that it has the parallel slow axis at an angle within the range of 10 to 45° with respect to the conveying direction of the long film, and thereafter, both the edges of the film are stretched at an angle within the range of -90 to -70° with respect to the conveying direction and also at a degree of stretching within the range of 0 to 20% by clamping units.
摘要:
PROBLEM TO BE SOLVED: To provide a polarizing plate which is controlled to prevent a failure in a production process or a sticking process to a liquid crystal cell while having a high optical compensation function.SOLUTION: The polarizing plate has a sandwiched structure of a polarizer with two polarizing plate protective films T1 and T2, wherein films T1 and T2 are cellulose ester films. The films T1 and T2 have a specified relation, and when T1 is subjected to an environmental change from 85°C and 20% RH to 95% RH, the minimum dimensional change rate X by humidity in a film plane satisfies 10≤X≤130 ppm/%RH.
摘要:
PROBLEM TO BE SOLVED: To provide a thin-film long-shape λ/4 plate with flatness in width and optical uniformity and further to provide an OLED display device in which visibility is made excellent even under external light by a circular polarizer or a polarizer using the λ/4 plate, and a three-dimensional (3D) image display device capable of suppressing luminance reduction in inclining the neck.SOLUTION: The present invention relates to a long-shape λ/4 plate in which a slow axis of a film has an angle of 20° to 70° with respect to a length direction and an in-plane phase difference Ro(590) in a wavelength of 590 nm meets Ro(590)=120 to 160 nm. The long-shape λ/4 plate is a laminated film including a layer A comprised of cellulose acylate meeting an expression (1) and a layer B comprised of cellulose acetate meeting an expression (2).
摘要:
PROBLEM TO BE SOLVED: To provide a method of manufacturing a glare-proof antireflection film in which a hard coat layer and an antireflection film are successively laminated on a transparent support film and an antireflection layer having a uniform film thickness, homogeneous reflection hue and scratch resistance is formed on the surface of rugged shape of the hard coat layer of the glare-proof antireflection film, to provide a glare-proof antireflection film manufactured by the method, and to provide an image display device having the glare-proof antireflection film. SOLUTION: In the method of manufacturing the glare-proof antireflection film 1 in which the antireflection layer 103 is disposed on the hard coat layer of a glare-proof film having the hard coat layer of the rugged surface on the transparent support film, an antireflection layer forming coating liquid is applied on the rugged surface of the hard coat layer 102 to form an antireflection layer forming coated film thereon and, until the succeeding drying process is completed, a conveyance direction is made to be upward or downward when the gravitational direction is made to be downward, whereby the antireflection layer is formed by blowing a wind against the antireflection layer forming coated film. COPYRIGHT: (C)2007,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a manufacturing method of glare-proof film that uses a transparent support film having a rugged surface, without using fine particles for giving glare-proof property and of disposing a hard coat layer on the transparent support film, to provide a glare-proof film manufactured by the manufacturing method of glare-proof film, to provide a glare-proof antireflection film provided with an anti-reflection layer disposed on a hard coat layer of the glare-proof film, and to provide an image display device using the glare-proof film and the glare-proof antireflection film. SOLUTION: In the manufacturing method of glare-proof film of disposing a hard coat layer on the surface of the transparent support film having a rugged surface, the surface of the transparent support film is coated with coating liquid for forming the hard coat layer in a coating process and, during at least one part of a period from a drying process up to a hardening process, after forming a coating film for forming the hard coat layer, the surface of the coating film for forming the hard coat layer is directed from downward state to sideways state, with respect to the gravity direction and receives a wind blow. COPYRIGHT: (C)2007,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide an antireflection film which is improved in film strength and chemical resistance and is suppressive in variation of reflection color and the occurrence of unevenness, and to provide a method of manufacturing the same and an image display device using the antireflection film. SOLUTION: The method, by which an antireflection layer containing metal oxide fine particles and a binder as main components is formed on a transparent support film by application, is characterized in that, before the antireflection layer is formed, discharge is generated by applying a high frequency voltage having 50 kHz to 150 MHz frequency between facing electrodes under the atmospheric pressure or a pressure in the vicinity thereof and an excited gas formed by the discharge is brought into contact with the surface of the transparent support film. COPYRIGHT: (C)2007,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide an antireflection film in which the film strength is high and the scratch resistance and abnormal surface property such as color irregularities of reflection light are improved, to provide a manufacturing method of the antireflection film, and to provide a polarizing plate and a liquid crystal display device using the antireflection film. SOLUTION: In the manufacturing method of the antireflection film formed by applying a hard coat layer and antireflective layer in the order on the surface of half side of a cellulose ester film, the cellulose ester film is made by thermally melting raw material comprising at least cellulose ester and plasticizer by an extruder, filtering the raw material in the thermally melted state by a filter, casting the melted raw material into a film shape after filtration and winding the film into a roll shape after cooling, and the antireflection film is subjected to thermal aging in the state of being wound in a roll shape after the antireflective layer is formed. COPYRIGHT: (C)2007,JPO&INPIT
摘要:
PROBLEM TO BE SOLVED: To provide a polarizing plate and a liquid crystal display which has a retardation film used on the backlight side of a liquid crystal cell for a liquid crystal display device having excellent visibility by solving such a phenomenon that a peripheral part of a liquid crystal screen looks whitish in a forced degradation test for estimating long-term duration, and to provide a polarizing plate and a liquid crystal display which is low-cost and is excellent in mass-productivity. SOLUTION: In the polarizing plate used on the backlight side of the liquid crystal cell for the liquid crystal display device, the polarizing film is a polyvinyl alcohol type polarizing film and a protective film for liquid crystal cell side polarizing film is manufactured by stretching a cellulose ester film. The protective film for liquid crystal cell side polarizing film is a retardation film the Ro of which is 20 to 300nm and the Rt of which is 70 to 400 nm. The protective film for liquid crystal cell side polarizing film has a hard coat layer on the backlight side and is a cellulose ester film the Ro of which is >0 nm and 0 nm and COPYRIGHT: (C)2006,JPO&NCIPI
摘要:
PROBLEM TO BE SOLVED: To provide coating liquid for forming an optical interference layer which is good in the dispersion stability of metal oxide particulates and whose retention stability is excellent, an optical interference layer produced by using the coating liquid and showing high film strength and a high refractive index, and an antireflection film and a display device. SOLUTION: The coating liquid for forming the optical interference layer including at least the metal oxide particulates and an organometallic compound and containing diacetone alcohol is prepared through a step for dispersing the metal oxide particulates in a solvent containing at least diacetone alcohol. COPYRIGHT: (C)2005,JPO&NCIPI
摘要:
PROBLEM TO BE SOLVED: To provide a liquid crystal display device, with an inexpensive configuration, by which problems of inversion of a half tone, underexposure and a color shift at a visual angle needed for practical performance are solved and front contrast is also enhanced. SOLUTION: The twist nematic liquid crystal display device having a twist nematic type liquid crystal cell, a first polarizer provided to the vision side of the liquid crystal cell, and a second polarizer and a backlight unit provided to the backlight side of the liquid crystal cell is constituted by providing a first retardation film and a second retardation film between the liquid crystal cell and first polarizer, and the liquid crystal cell and second polarizer, respectively, and also providing a predetermined scattering film having a scatterer dispersed in a transparent resin on the vision side of the first polarizer. COPYRIGHT: (C)2011,JPO&INPIT