PHOTOSENSITIVE POLYMER LIQUID CRYSTAL ALIGNING AGENT HAVING TRIAZINE CHAIN AS MAIN CHAIN, LIQUID CRYSTAL ALIGNMENT LAYER USING THE ALIGNING AGENT, LIQUID CRYSTAL DISPLAY EMPLOYING THE ALIGNMENT L

摘要

PURPOSE: A liquid crystal alignment agent having a triazine chain as a main chain, a photosensitive polymer liquid crystal alignment layer prepared by using the aligning agent, its preparation method and a liquid crystal display employing the alignment layer are provided, to improve the heat stability, the electro-optical properties and the alignment. CONSTITUTION: The liquid crystal alignment agent comprises a polymer having at least one photoactive group, and is represented by the formula I, wherein m+n is 1, 0<=m<=1, and 0<=n<=1. The photosensitive polymer liquid crystal alignment layer is prepared by dissolving the aligning agent into 1-20 wt% of an organic solvent to the viscosity of 1-100 cps; coating the solution on a substrate to form a coating with a thickness of 10-500 nm; and irradiating the UV light onto the coating.