ORIENTED LAMINATE, PREPARING METHOD FOR THIN POLARIZER, THIN POLARIZER MANUFACTURED BY USING THE SAME AND POLARIZING PLATE COMPRISING THE SAME

摘要

The present invention relates to a stretched laminate obtained by stretching a laminate including an un-stretched polymer film and an un-stretched polyvinyl alcohol-based film, which is laminated on at least one side of the un-stretched polymer film. The L, presented by chemical formula 1 below, satisfies an inequality of 0 <= L <= 0.125. In chemical formula 1, the do, sub′ is the thickness of the polymer film before the polymer film is stretched. The dsub′ is the thickness of the polymer film after the polymer film is stretched. The do, PVA is the thickness of the un-stretched polyvinyl alcohol-based film before the un-stretched polyvinyl alcohol-based film is stretched. The dPVA is the thickness of the un-stretched polyvinyl alcohol-based film after the un-stretched polyvinyl alcohol-based film is stretched. The Wo, sub′ is the width of the polymer film before the polymer film is stretched. The Wsub′ is the width of the polymer film after the polymer film is stretched. The Wo, PVA is the width of polyvinyl alcohol-based film before the polyvinyl alcohol-based film is stretched. The WPVA is the width of polyvinyl alcohol-based film after the polyvinyl alcohol-based film is stretched. According to the present invention, the thin polarizer having excellent optical performance can be manufactured.