| 摘要 |
A method of manufacturing a polarizing plate in which an original polarizing plate is cut accurately, cracks are not extended easily in a section and foreign substances are not attached easily on a polarizing plate to be obtained, and a cutting mat to be used in the method are provided. An original polarizing plate having a plurality of layers is fixed on a first principal surface of an ultrahigh molecular weight polyethylene porous sheet by drawing from the opposite side. The original polarizing plate is cut by a blade moving across the thickness of the original polarizing plate by using the porous sheet as a cutting mat to obtain a polarizing plate having a plurality of layers. A curable liquid, such as ultraviolet curable ink, is impregnated in vacant pores of the porous sheet, and is cured to obtain a sheet. The sheet thus obtained is particularly suitable for a cutting mat.
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