A study on pretilt angle of liquid crystal with polarized UV light irradiation on soluble polyimide alignment films

被引：1

作者：

Shin, DM ^{[1
]}

Park, MK

Yi, MH

Choi, KY

机构：

[1] Hongik Univ, Dept Chem Engn, Seoul 121791, South Korea

[2] Korea Res Inst Chem Technol, Adv Mat Div, Taejon 305350, South Korea

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1999年 / 327卷

关键词：

photo-alignment layer; photocrosslinkable polyimide; pretilt angle;

D O I：

10.1080/10587259908026802

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

We prepared photo-crosslinkable polyimide(PI) film, which contains CF(3) moiety. The ketone peak (at 1678cm(-1)) of PI was decreased and broad hydroxyl bond appeared. The decrease of ketone peak was also confirmed with UV-visible spectroscopy. The dichroic ratio of LC cell was obtained. The LC molecules are uniformly aligned perpendicular to polarization direction of irradiated light on PI layers. The pretilt angle of LC on alignment PI films was obtained to be about 3.3 degrees.

引用

页码：153 / 156

页数：4

共 4 条

[1]

HASHIMOTO T, 1995, SID 95, P877

[2] SURFACE-INDUCED PARALLEL ALIGNMENT OF LIQUID-CRYSTALS BY LINEARLY POLYMERIZED PHOTOPOLYMERS [J].