Patent application number | Description | Published |
20090059369 | POLARIZER PROTECTIVE FILM, POLARIZING PLATE, AND IMAGE DISPLAY APPARATUS - The present invention is to provide: a polarizer protective film having an excellent UV absorbing ability, excellent heat resistance, and excellent optical transparency; a polarizing plate having less defects in an outer appearance using the polarizer protective film and a polarizer; and an image display apparatus of high quality using the polarizing plate. The polarizer protective film of the present invention includes as a main component a (meth) acrylic resin and a UV absorber, in which: a light transmittance at 380 nm of the polarizer protective film is 30% or less when the film has a thickness of 80 μm; a difference between a Tg of the polarizer protective film and a Tg of the same film as the polarizer protective film except that it does not contain the UV absorber is within 3° C.; and YI at a thickness of 80 μm is 1.3 or less. | 03-05-2009 |
20090147359 | METHOD FOR MANUFACTURING POLARIZING FILM, POLARIZING FILM OBTAINED BY THE METHOD, AND IMAGE DISPLAY APPARATUS USING THE POLARIZING FILM - The present invention provides a method for manufacturing a polarizing film, by which, even when a wide raw film is used, it is possible to obtain a polarizing film that achieves excellent optical characteristics as well as uniformity in in-plane optical characteristics. The method includes the steps of dyeing a polymer film; stretching the dyed film; and drying the film that has undergone the dyeing and stretching steps while conveying the film with rolls. In the drying step, at least two rolls are used as the rolls and the film is dried under a condition that a ratio (R/W) of a distance (R) between the adjacent rolls to an initial width (W) of the polymer film is not less than 0.5 and not more than 4.0. | 06-11-2009 |
20090153965 | Polarizer Protective Film, Polarizing Plate, and Image Display Apparatus - Provided are: a polarizer protective film having excellent optical properties and mechanical strength, with the productivity and reworking property enhanced; a polarizing plate with less defects in an outer appearance, using a polarizer formed of the polarizer protective film and a polyvinyl alcohol-based resin; and an image display apparatus of high quality using the polarizing plate. The polarizer protective film of the present invention includes as a main component a (meth)acrylic resin, which is stretched by longitudinal stretching and/or lateral stretching. | 06-18-2009 |
20090202822 | POLARIZER PROTECTIVE FILM, POLARIZING PLATE, AND IMAGE DISPLAY APPARATUS - Provided is a polarizer protective film, which has high heat resistance, high transparency, high optical characteristics, and high mechanical strength, and is excellent in adhesion with respect to a polarizer. Further, provided are a polarizing plate using the polarizer protective film and a polarizer, which has high adhesion with respect to the polarizer protective film and the polarizer and is excellent in optical characteristics, and in particular, excellent in transmittance as viewing angle characteristics, and an image display apparatus of high quality using the polarizing plate. The polarizer protective film of the present invention includes a cellulose-based resin layer having a thickness of 0.3 to 3 μm on at least one surface of a transparent resin layer containing a (meth)acrylic resin having a lactone ring structure. | 08-13-2009 |
20100002298 | POLARIZER PROTECTIVE FILM, POLARIZING PLATE, AND IMAGE DISPLAY APPARATUS - Provided are a polarizer protective film containing a (meth)acrylic resin as a main component and being excellent in adhesion with a polarizer, a polarizing plate including the polarizer protective film and a polarizer which are unlikely to peel off from each other, and an image display apparatus of high quality using the polarizing plate. The polarizer protective film of the present invention includes a coating layer containing a (meth) acrylic resin (B) as a main component on at least one surface of a film containing a (meth)acrylic resin (A) as a main component. | 01-07-2010 |
20100220392 | POLARIZING PLATE, OPTICAL FILM AND IMAGE DISPLAY - A polarizing plate of the present invention includes a polyvinyl alcohol-based polarizer and transparent protective films provided on both sides of the polarizer with an adhesive layer interposed between the polarizer and each transparent protective film, wherein the transparent protective films each comprise a lactone ring structure-containing (meth)acrylic resin, each one of the transparent protective films has a thickness T1 (μm) of 10 to 35 μm, and the polarizer has a thickness T2 (μm) which satisfies that the ratio (T2/T1) of T2 to the thickness T1 of each one of the transparent protective films falls within the range of 0.8 to 1.8. The polarizing plate is designed to be thin and can satisfy durability. | 09-02-2010 |
20100315710 | OPTICAL FILM, POLARIZING PLATE, AND IMAGE DISPLAY APPARATUS - Provided are an optical film which has high heat resistance, high transparency, and high mechanical strength, and has a sufficient retardation compensation function with a reverse wavelength dispersion characteristics, and a polarizing plate having such an optical film and a polarizer. Further, an image display apparatus of high quality using such a polarizing plate is provided. The optical film of the present invention includes a (meth)acrylic resin having a lactone ring as a main component, in which an in-plane retardation Re(450) at a wavelength of 450 nm/an in-plane retardation Re(600) at a wavelength of 600 nm is less than 1.0. | 12-16-2010 |
20110019274 | POLARIZATION PLATE - An end face of a polarization plate | 01-27-2011 |