POLARIZER PROTECTIVE FILM, POLARIZING PLATE, AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a polarizer protective film that ensures good visibility of a liquid crystal display device while preventing iridescent speckles in observation of the device in a direction oblique to the normal direction on a display screen of the device, even when the film is made thin, and to provide a polarizing plate and a liquid crystal display device using the above film.SOLUTION: The polarizer protective film is composed of a polyester film having a retardation of 3000 to 30000 nm. The polyester constituting the above polyester film is a mixture of a polyester (A) and a polyester (B). The polyester (A) comprises an aromatic dicarboxylic acid component and ethylene glycol as a glycol component; and the polyester (B) comprises an aromatic dicarboxylic acid component and a glycol component comprising at least an alkylene glycol having 3 or more carbon atoms.SELECTED DRAWING: None