PB04 種々の液晶光配向膜を用いた場合の液晶光配向方向を決定する要因(化学・材料)

抄録

Various kinds of photo-cross-linkable polymers were synthesized and applied to a photoalignment layer for liquid crystals (LCs). To estimate an origin of the LC alignment on the photoreacted polymer surfaces, four-types of alignment layers using the same polymer were prepared by combination of exposure with linearly polarized ultraviolet (LPUV) light and mechanically rubbing method. As a result, LC alignment direction is dependent on not only anisotropic photoreaction of the photoreactive group, but also length of the spacer and the rubbing direction.