| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a film which has no curve on the film during off-annealing treatment in a manufacturing process of a touch panel and hardly deteriorates transparency and is used for manufacturing of a touch panel, and its roll. <P>SOLUTION: In the film for the touch panel consisting of a biaxially oriented film with thickness of 35-250 μm made of polyethylene terephthalate, and a coated layer with thickness of 50-100 nm arranged on both surfaces of the film, the maximum value of an orientation angle is 30-50°, the minimum value in a film plane of a thermal shrinkage rate of the film is ≥0.5% when the film is left for 30 minutes at 150°C, and the maximum value in a film plane of the thermal shrinkage rate of the film is ≤0.8%. <P>COPYRIGHT: (C)2010,JPO&INPIT |
