OPTICAL FILM, AND AN ELECTRONIC INFORMATION DEVICE COMPRISING THE SAME

摘要

The present invention relates to an optical film in which the absolute value of the in-plane phase difference (Rin) and the phase difference in the thickness direction (Rth) is no more than 10 nm, and which comprises: an aromatic-based unit having an aromatic moiety and a chain having a hydroxyl-group-containing moiety; and a styrene-based unit comprising one or more types of styrene-based derivative. The present invention also relates to an electronic information device comprising this optical film.