Effect of rubbing on polymers for liquid crystal alignment film studied by grazing-incidence X-ray diffraction and reflection ellipsometry

被引：9
作者：
Ichiro, Hirosawa [1 ]
Koganezawa, Tomoyuki
Sakai, Takahiro
机构：
[1] Japan Synchroton Radiat Res Inst, Hyogo 6795198, Japan
[2] Nissan Chem Ind Co Ltd, Funabashi, Chiba 2748507, Japan
来源：
IEICE TRANSACTIONS ON ELECTRONICS | 2007年 / E90C卷 / 11期
关键词：
rubbing; grazing-incidence X-ray diffraction; polyimide; alignment film;
D O I：
10.1093/ietele/e90-c.11.2070
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Rubbed polyimide films have been widely used as liquid crystal alignment films for liquid crystal displays (LCDs). We investigated the effect of rubbing on the surface molecules of polyimide films by using grazing incidence X-ray diffraction (GIXD) and reflection ellipsometry. We found that rubbing not only caused the polymer chains to align in the direction of rubbing but also to elongate near the film surface. However, the in-plane distribution of surface polymer chains of polyimide film was not found to be dependent on the rubbing conditions.
引用
收藏
页码：2070 / 2075
页数：6
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