| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a polarizing plate having a small change in transmissivity and a polarization degree by heat and humidity, and to provide a liquid crystal display device having high display quality without generating the problem such as light leakage by using the polarizing plate wherein protective films having humidity permeable degrees different from each other are disposed on both sides of a polarizer, for the liquid crystal display device. <P>SOLUTION: In the polarizing plate formed by layering a first protective film, the polarizer and a second protective film in this order, the first protective film contains a cyclic olefin based resin and has 5 to 500 μm average thickness and 0.1 to 200 g/m<SP>2</SP>/day humidity permeability at 40°C90%RH. The second protective film is a liquid crystal cell side protective film, contains a cyclic olefin based resin and has 5 to 500 μm average thickness and 100 to 1,000 g/m<SP>2</SP>/day humidity permeability at 40°C90%RH, and the humidity permeability of the first protective film is lower than the humidity permeability of the second protective film. <P>COPYRIGHT: (C)2010,JPO&INPIT |
