Dry vertical alignment method for multi-domain homeotropic thin-film-transistor liquid crystal displays

被引：37

作者：

Cai, C ^{[1
]}

Lien, A ^{[1
]}

Andry, PS ^{[1
]}

Chaudhari, P ^{[1
]}

John, RA ^{[1
]}

Galligan, EA ^{[1
]}

Lacey, JA ^{[1
]}

Ifill, H ^{[1
]}

Graham, WS ^{[1
]}

Allen, RD ^{[1
]}

机构：

[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2001年 / 40卷 / 12期

关键词：

LCD; VA; dry-VA; F-DLC; multi-domain;

D O I：

10.1143/JJAP.40.6913

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Multi-domain homeotropic liquid crystal alignment has been recognized as an alignment method to achieve wide viewing angle for thin-film-transistor liquid crystal displays (TFT-LCDs). In the past decade, several types of multi-domain homeotropic TFT-LCDs have been well studied. In all these LCDs, a homeotropic polyimide layer is used to align liquid crystal molecules. In this paper, a new homeotropic alignment method-dry deposition vertical alignment (or vacuum deposition vertical alignment) is introduced. We studied several different vacuum deposited vertical alignment materials and one of them was demonstrated on a high resolution ridge fringe-field multi-domain homeotropic (RFFMH) TFT-LCD. This new method has advantages over the conventional polyimide alignment method: it simplifies the manufacturing process by avoiding wet chemical processes and improves the viewing angle by reducing light leakage.

引用

页码：6913 / 6917

页数：5