Alan Lien, C. Cai, et al.
MRS Spring Meeting 1999
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.
Alan Lien, C. Cai, et al.
MRS Spring Meeting 1999
Albert Cazes, Gordon Braudaway, et al.
Proceedings of SPIE - The International Society for Optical Engineering
Alan Lien
Liquid Crystals
P. Andry, C. Tsang, et al.
ECTC 2006