LC aligning substrate by rubbing the surface of the substrate with a roller while slightly vertically vibrating the roller and the substrate

摘要

An LC aligning substrate (3) is used for an LCD. The substrate is rubbed with a roller (5). The roller has irregularities on the surface thereof, or instead, one of the roller and substrate is vertically vibrated. As a result, the orientation of molecules at the surface of the substrate is finely changed to conceal sharp changes in the orientation of the surface molecules, thereby preventing the LCD from displaying defective rubbing stripes.