| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid crystal cell using a tilt alignment film for a liquid crystal having high productivity in which any tilt angles can be designed, by irradiating a resin film containing a photoisomerization reaction structural unit with non-polarized light in an oblique direction. SOLUTION: A resin film containing a photoisomerization reaction structural unit is irradiated with non-polarized light in an oblique direction to form a tilt alignment film for a liquid crystal. The resin film used contains a photoisomerization reaction structural unit, and the photoisomerization reaction structural unit preferably has at least one double bond selected from N=N and C=C bonds and causes geometrical photoisomerization reaction by irradiation of light. As for the photoisomerization reaction structural unit having N=N bonds, for example, azobenzene and azopyridine can be used. As for the photoisomerization reaction structural unit having Cr=C bonds, for example, stilbene and stilbazole can be used. As for the resin containing the photoisomerization reaction structural unit, any of vinyl polymers, ring-opened polymers or the like can be used. |
