Twisted nematic film, a method for the preparation thereof, and a display device comprising said film.

摘要

The invention relates to a twisted nematic film comprising a non-cross-I inked liquid-crystalline polymer having a Tg above 75 DEG C and a rotational viscosity ( gamma ) of less than 5000 Pascal.seconds (Pa.s) between Tg and Tni. Such twisted nematic films are used in displays. The invention further relates to methods for the preparation of these twisted nematic films, to the use of said twisted nematic films for optical data storage and in writable compact disks and to a display device comprising such a twisted film.