COMPOSITION FOR PHOTOINDUCED LIQUID CRYSTAL ALIGNMENT COMPRISING SILICA, THE FILM FOR PHOTOINDUCED LIQUID CRYSTAL ALIGNMENT THEREBY, MANUFACTURING METHOD OF THE SAME AND THE LIGUID CRYSTAL CELL COMPRISING THE FILM

摘要

PURPOSE: A liquid crystal alignment agent composition containing silica is provided, which improves electrooptical property. A liquid crystal alignment film using the liquid crystal alignment agent composition, a preparation method thereof, and a liquid crystal element containing the liquid crystal alignment film, are also provided. CONSTITUTION: The liquid crystal alignment agent composition contains 0.001-5wt%(based on the liquid crystal alignment agent composition) of the silica having a diameter of less than 500nm. The liquid crystal alignment film is produced by a process containing the steps of: dissolving the liquid crystal alignment agent composition in an organic solvent; mixing the silica with the solution; spreading the solution on a substrate(20) by a spin-coating or a printing method to form the alignment film(10); and aligning liquid crystals by horizontally or vertically irradiating a linearly polarized UV or an unpolarized UV on the alignment film(10). And the liquid crystal element contains the liquid crystal alignment film(10).