发明名称 METHOD FOR MANUFACTURING OPTICAL FILM PRODUCT
摘要 A method for manufacturing optical film products is provided to make the optical film products at the good yield rate by exactly discriminating the front and back sides and upper and lower sides of the optical film product. A method for manufacturing optical film products by punching a sheet or a long roll(4) of an optical film forms marks of a carving cutter(11) on the optical film by punching a portion of a punching cutter die with a cutter die equipped with the carving cutter. The optical film is a polarizing film, an optical compensation film, a phase difference film, an optical reflection film, an optical scattering film, or a laminate formed by stacking at least one of the films.
申请公布号 KR20070075333(A) 申请公布日期 2007.07.18
申请号 KR20070003120 申请日期 2007.01.11
申请人 SUMITOMO CHEMICAL CO., LTD. 发明人 MIZUNO KATSUSHI;MIWA NORIHIRO
分类号 G02B5/30;G02F1/13 主分类号 G02B5/30
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