METHOD FOR PREPARING ALIGNMENT FILM, METHOD FOR IMPLEMENTING ORIENTATION, AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

A method for preparing an alignment film (6), a method for performing alignment of the alignment film (6), as well as a multi-dimensional liquid crystal display device manufacture using the alignment film (6). The alignment film (6) generated by the preparation method is a light sensitive alignment film (6), which can generate directions of orientation perpendicular or parallel to the polarization direction under different dosages of linearly polarized ultraviolet light (10). By adjusting the polarization direction or dosage of the linearly polarized ultraviolet light (10), multi-dimensional orientations of the alignment film (6) is achieved. Manufacture of a multi-dimensional liquid crystal display device using a substrate (1) having the alignment film (6) with multi-dimensional orientations avoids the manufacture of the multi-dimensional electrode, and reduces costs and difficulty of process.

主权项

1. A method for preparing an alignment film comprising:
mixing 4-nitrobenzyl bromide with triphenylphosphine at a molar ratio of 1:0.95˜1:1, dissolving them in a dry tetrahydrofuran solution, heating and agitating under reflux, to obtain a dry white product A; mixing the resultant white product A with p-nitrobenzaldehyde at a molar ratio of 0.95:1˜1:1 in a tetrahydrofuran solution, and agitating under room temperature to obtain a product B; mixing the resultant product B with tin dichloride at a molar ratio of 1:1˜1:1.5, then dissolving them in a mixed solution of hydrochloride acid and acetone, agitating under the room temperature and refluxing to obtain a product C; mixing the resultant product C with 9,9′-bianthracyl tetracarboxylic dianhydride in a dry N-methyl-pyrrolidone solution under agitation to obtain a product D; and heating the resultant product D to obtain the alignment film.