PCa01 実パネル上配向膜の光学的異方性測定成功

抄録

An optical anisotropy of rubbed polyimide (PI) film has been evaluated by means of a reflection ellipsometry[1]. We applied this method to the evaluation of an actual LCD panel, and succeeded to observe the optical anisotropy of alignment layer. We compared the optical anisotropy of PI on the actual panel and that on the glass prepared in the same rubbing condition. The optical anisotropy of PI on the actual panel was smaller than that on the glass. It might be the influence of the substrate. Dependence of the optical anisotropy on rubbing times was also investigated. The increase of the optical anisotropy was observed with the increase of rubbing times in both of them. It is concluded that the optical anisotropy is also possible to be used for the index of RS(rubbing strength) in LCD flat panel.