POLAR ANCHORING STRENGTH AND THE TEMPERATURE-DEPENDENCE OF NEMATIC LIQUID-CRYSTAL (5CB) ALIGNED ON RUBBED POLYSTYRENE FILMS

被引：79

作者：

SEO, DS

MUROI, K

ISOGAMI, T

MATSUDA, H

KOBAYASHI, S

机构：

[1] Division of Electronic and Information Engineering, Tokyo University of Agriculture and Technology, Koganei Tokyo, 184

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1992年 / 31卷 / 07期

关键词：

POLYSTYRENE FILM; POLYIMIDE FILM; NEMATIC LIQUID CRYSTAL; RUBBING STRENGTH; OPTICAL RETARDATION; EXTRAPOLATION LENGTH; POLAR ANCHORING STRENGTH;

D O I：

10.1143/JJAP.31.2165

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A characterization of rubbed polystyrene (PS) film in terms of the optical retardation measurement as a function of the rubbing strength (RS) has been made, and the alignment capability of the rubbed PS films for a nematic liquid crystal (5CB) has been investigated by measuring anchoring strength and its temperature dependence. It is shown that the liquid crystal (LC) molecules orient homogeneously in a direction orthogonal to that of rubbing, the anchoring strength of the rubbed PS films at the strongest rubbing strength for 5CB is about 70 times weaker compared to that for rubbed standard polyimide films, and the anchoring strength decreases with the temperature in a divergent fashion according to the increase of the extrapolation length-toward the clearing point (T(c) = 35.3-degrees-C).

引用

页码：2165 / 2169

页数：5

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