| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that a diagonal drawing method can be used to obtain a polarizing film having an absorption axis diagonal with respect to the width direction of a film, however obtaining a thin polarizing film is difficult, and a thin polarizing film can be easily obtained using an existing process in which a support film is coated with a thin film of a liquid crystal compound and the liquid crystal compound is aligned, thereby easily forming a thin polarizing film, however, such a process cannot obtain a polarizing film for which the absorption axis is diagonal with respect to the width direction of the support film. SOLUTION: In the method of manufacturing the composite film, the surface of a support film 11 is aligned in two directions. A solution containing a lyotropic liquid crystal compound 14 is applied to a surface of the support film 11. A columnar aggregate 15 of the lyotropic liquid crystal compound 14 is aligned in an alignment direction 16 corresponding to the vector sum of a first alignment process direction 12 and a second alignment process direction 13, resulting in a thin polarizing film 18 having an absorption axis 17 diagonal with respect to the width direction 19. COPYRIGHT: (C)2011,JPO&INPIT
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