发明名称 OPTICAL COMPENSATION FILM, METHOD FOR PRODUCING OPTICAL COMPENSATION FILM, POLARIZATION PLATE AND LIQUID CRYSTAL DISPLAY
摘要 An object of the invention was to provide a method for producing an optical compensation film having low haze and high uniformity of retardation, and a polarization plate and a liquid crystal displaying apparatus which is considerably reduced in the visivility variation caused by heat from a direct lighting type backlight of variation of the environment conditions and the color reproducibility is excellent. Disclosed is a method for producing an optical compensation film comprising the steps of cellulose resin film formed by melt-casting a composition which containing a cellulose resin, wherein the cellulose resin has a residual sulfuric acid content of 0.1-50 ppm, providing a polymer layer on the cellulose resin film, and stretching the cellulose resin film together with the polymer layer.
申请公布号 KR20060103127(A) 申请公布日期 2006.09.28
申请号 KR20060025904 申请日期 2006.03.22
申请人 KONICA MINOLTA OPTO, INC. 发明人 MURAKAMI TAKASHI
分类号 G02F1/1335 主分类号 G02F1/1335
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