CELLULOSE ACYLATE LAMINATED FILM AND METHOD OF MANUFACTURING THE SAME, AND POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a means of allowing a cellulose acylate film comprising principally low-substitution-degree cellulose acylate like diacetyl cellulose to exhibit high phase difference developability while suppressing, to the minimum, the lowering of internal haze and reverse wavelength dispersibility.SOLUTION: There is provided a cellulose acylate laminated film having a three-layer structure formed by sandwiching a core layer (B) including cellulose acylate (B) between a pair of skin layers (A) including cellulose acylate (A), wherein the pair of skin layers (A) both contain a sugar ester compound represented by general formula (I) and are both made larger in content of the sugar ester compound than the core layer (B), and the total acyl substitution degree (DS(A)) of the cellulose acylate (A) and the total acyl substitution degree (DS(B)) of the cellulose acrylate (B) satisfy expression (1).