OPTICAL FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY

摘要

An optical film is provided and includes a transparent polymer film. The optical film has at least an A1 value defined by Re (450)/Re (550) of from 0.10 to 0.95 and A2 value defined by Re (650)/Re (550) of from 1.01 to 1.50. Re (λ) represents the retardation value of the film with respect to light having a wavelength ofλnm; and Rth (λ) is the retardation value in the thickness direction of film with respect to light having a wavelength ofλnm.