| 摘要 |
The present invention generally relates to polymer films having improved adhesion to poly(vinyl alcohol) films. More particularly, the invention relates to a protective cover sheet comprising a low birefringence protective polymer film, a layer that promotes adhesion to poly(vinyl alcohol), and a tie layer between the said low birefringence polymer film and said layer promoting adhesion to poly(vinyl alcohol). The cover sheet has excellent adhesion to poly(vinyl alcohol)-containing dichroic films and eliminates the need to alkali treat the cover sheet prior to lamination to the dichroic films, thereby simplifying the process to manufacture polarizing plates for use in displays. |
