高分子安定化に対する偏光UVの効果

抄録

For fast response of LC, usage of reactive mesogens (RMs) have been studied intensively. We evaluated the effectiveness of linearly polarized UV (LPUV) for polymer formation in the vicinity of rubbed polyimide alignment layer. Three kinds of UV, such as (i)non-polarized (ii) parallel to the rubbing-direction (iii) perpendicular to the rubbing-direction irradiated for LC cell with RM concentration of 5wt% and 10wt%. When LCD with both RM concentrations using LPUV parallel to the rubbing-direction, the decay time was the shortest. It seems that the fibril polymerized linearly by LPUV parallel to the rubbing direction as a result of SEM observation. The decay time was to be shorten by the strong anchoring force and high alignment ability because of linear-fibril.