CELLULOSE ACETATE FILM, METHOD FOR PRODUCING CELLULOSE ACETATE FILM, POLARIZING PLATE, LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD FOR PRODUCING LIQUID CRYSTAL DISPLAY DEVICE

摘要

The purpose of the present invention is to provide a cellulose acetate film which has a high retardation value despite being thin, does not exhibit an increase in internal haze and has a little unevenness in phase difference even if being stretched at a high stretching ratio, and does not exhibit an increase in haze even in a hygrothermal environment; a method for producing the cellulose acetate film; a polarizing plate using the same; and a liquid crystal display device using the same. This cellulose acetate film is characterized by comprising at least a polyester compound represented by general formula (I) and having a hydroxy group at both ends and cellulose acetate having a degree of acetyl substitution of 2.0 to 2.6. (In the formula, B represents linear or branched alkylene having 2-6, inclusive, carbon atoms or a cycloalkylene group; A represents an aromatic ring having 6-14, inclusive, carbon atoms; and n represents a natural number of 1 or more.)