BESCHICHTUNG ZUR PHASENVERSCHIEBUNG UND VERWENDUNG IN FLÜSSIGKRISTALLANZEIGE

摘要

A retardation film that can compensate for the optical properties of the liquid crystal cells of a liquid crystal display device and thereby enhance image quality. The retardation film consists of a single polymer film, which has a wavelength range in which the retardation value is positive and a wavelength range in which it is negative in a wavelength range of 400-800 nm, and which satisfies the following inequality (1) and/or (2) and has a water absorption of no greater than 1% by mass. R(400)≥10 nm R(700)≥10 nm