CELLULOSE ESTER FILM, POLARIZING PLATE, LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD FOR MANUFACTURING CELLULOSE ESTER FILM,申请号JP20120025722-传众专利搜索

CELLULOSE ESTER FILM, POLARIZING PLATE, LIQUID CRYSTAL DISPLAY DEVICE, AND METHOD FOR MANUFACTURING CELLULOSE ESTER FILM

申请公布号：JP2012181516(A)

申请号：JP20120025722

申请日期：2012.02.09

申请公布日期：2012.09.20

申请人：

FUJIFILM CORP

发明人：TAKADA RYOSUKE;TAKEDA ATSUSHI

分类号：G02B5/30;B29C55/02;B29K1/00;B29L7/00;B29L11/00;C08J5/18;G02F1/1335

主分类号：G02B5/30

摘要：<P>PROBLEM TO BE SOLVED: To provide a cellulose acylate film which has substantially no retardation in the in-plane directions and has large Rth per a film thickness and a high elastic modulus, and to provide a method for manufacturing the film. <P>SOLUTION: The cellulose ester film contains at least one kind of plasticizer and satisfies the following expressions (1)-(5): ¾Re¾≤5 nm (1); 50 nm<Rth<300 nm (2); 25 μm≤d≤65 μm (3); 1×10<SP POS="POST">-3</SP>≤Rth/d≤4×10<SP POS="POST">-3</SP>(4); 3.8 GPa<E'<5.0 GPa (5); where Re represents the retardation value in the in-plane directions, Rth represents the retardation value in the thickness direction, d represents the thickness of the film, and E' represents the elastic modulus of the film. <P>COPYRIGHT: (C)2012,JPO&INPIT