| 摘要 |
PROBLEM TO BE SOLVED: To prevent the warpage of a liquid crystal display device as much as possible by laminating plastic barrier film which is transparent and has moisture barrier performance and whose glass transition temperature is equal to or above a specified value on the surface of a polarizing plate. SOLUTION: The polarizing plate 10 is constituted by laminating the plastic barrier film 14 on either protective film 11a of polarizing film 12 coated and protected with/by the protective films 11a and 11b through an adhesive layer 13. Then, the plastic barrier film 14 laminated is transparent and has the moisture barrier performance, and for instance polyester film and polystyrene film or the like whose glass transition temperature is >=60 deg.C are used. Also, the plastic barrier film 14 whose moisture permeability is <=500 g/m<2> .24 hours and is specially desirably <=10 g/m<2> .24 hours may be used. Thus, the polarizing plate 10 is restricted, and is made moisture-proof, so that the warpage of a cell substrate and a whole liquid crystal display device caused by the expansion and shrinkage of the polarizing film 12 is prevented as much as possible. |
