Patent ID: 8111459
Filing Date: 2012-02-07
Classification: G02B,G02F

Abstract:
1. A laminated polarizing film comprising a negative substantially uniaxial optical film comprising a thermoplastic polymer having a negative molecular polarizability anisotropy, a positive optical film comprising a thermoplastic polymer having a positive molecular polarizability anisotropy, and a polarizing film, that are laminated at least in this order, a slow axis within a film plane of the negative substantially uniaxial optical film and a slow axis within a film plane of the positive optical film being substantially in parallel to each other, and each being substantially perpendicular to an absorption axis of the polarizing film, a positional relationship between a principal orientation direction of polymer main chains of the negative substantially uniaxial optical film and the absorption axis of the polarizing film being substantially in parallel, and a positional relationship between a principal orientation direction of polymer main chains of the positive optical film and the absorption axis of the polarizing film being substantially perpendicular, wherein an in-plane phase retardation value R n n n