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 KR101189947(B1) 申请公布日期 2012.10.12
申请号 KR20060025904 申请日期 2006.03.22
申请人 发明人
分类号 G02F1/1335 主分类号 G02F1/1335
代理机构 代理人
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