| 摘要 |
<p>A polarizing film which comprises a polyvinyl alcohol derivative having a polyvinylene structure and obtained from polyvinyl alcohol having a degree of polymerization of 2,000 or higher and has a dichroic ratio of 20 or higher. The polarizing film has excellent polarizing performance in the visible spectral region and excellent durability in long-term standing at high temperature and high humidity. It is effective as a polarizing plate for an automotive LCD undergoing wide fluctuations of temperature and humidity, such as those of LCD navigation systems or LCD televisions.</p> |
