| abstract |
An object of the present invention is to reduce polarization of a display image that is difficult to see depending on the direction of a polarization axis even when observed through an optical member having a polarizing action such as polarized sunglasses. It is providing the manufacturing method of a board, a polarizing plate, and a liquid crystal display device. A polarizing plate having a λ / 4 plate having a cellulose resin as a polarizing plate protective film on at least one surface of a polarizer and a hard coat layer on the surface, wherein the cellulose resin is an acetyl ester of cellulose ester. A polarizing plate characterized by being a cellulose ester satisfying the following formulas (1) and (2) when the group substitution degree is X and the propionyl group substitution degree is Y. Formula (1) 2.3 <= X + Y <= 2.8 Formula (2) 0.0 <Y ≦ 2.8 [Selection figure] None |