| abstract |
Provided is a polymer film for reducing the dependence on the color viewing angle of a liquid crystal display device. A polymer film containing a wavelength dispersion control agent represented by general formula (I) and having a retardation value in a predetermined range. (In general formula (I), R 1 and R 2 each independently represent a hydrogen atom, an alkyl group, or an aryl group, but they do not represent a hydrogen atom at the same time. R 3 and R 4 each independently represent an electron demand. Represents an attractive substituent, R 1 and R 2 , or R 3 and R 4 may be bonded to each other to form a ring.) [Selection figure] None |