| US 7,576,913 B2 | ||
| Method for producing polarizing plate, polarizing plate, optical film, and image display | ||
| Hiroaki Mizushima, Ibaraki (Japan); Megumi Katou, Ibaraki (Japan); Mizue Nagata, Ibaraki (Japan); Takaaki Ishii, Ibaraki (Japan); and Daisuke Ogomi, Ibaraki (Japan) | ||
| Assigned to Nitto Denko Corporation, Ibaraki-shi (Japan) | ||
| Filed on Nov. 13, 2007, as Appl. No. 11/938,968. | ||
| Claims priority of application No. 2006-308112 (JP), filed on Nov. 14, 2006. | ||
| Prior Publication US 2008/0112047 A1, May 15, 2008 | ||
| Int. Cl. G02B 5/30 (2006.01) | ||
| U.S. Cl. 359—494 | 9 Claims |
| 1. A method for producing a polarizing plate, comprising bonding a transparent protective film (A) and another transparent
protective film (B) to one side of a polarizer and to another side of the polarizer, respectively, with an adhesive, wherein
the polarizer has a moisture content of 15 to 30% by weight,
the transparent protective film (A) is made of the same quality material as the transparent protective film (B),
the transparent protective film (A) is thicker than the transparent protective film (B), and
the transparent protective film (A) has a moisture content higher than that of the transparent protective film (B).
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