Gel layers for inducing adjustable pretilt angles in liquid crystal systems

Autor:	C. de Witz, R. A. M. Hikmet
Rok vydání:	1991
Předmět:	Thin layers Materials science business.industry Crystal orientation General Physics and Astronomy Optics Polymerization Liquid crystal Molecule Irradiation Composite material business Layer (electronics) Polyimide
Zdroj:	Journal of Applied Physics. 70:1265-1269
ISSN:	1089-7550 0021-8979
Popis:	A novel system for inducing pretilt angles in liquid crystals (LC) was devised. For this purpose thin layers of a LC mixture containing diacrylate molecules were spun on glass plates covered with rubbed polyimide films. The layers were then photopolymerized to form a gel by UV radiation. In this way the orientation within the pregel layer was frozen. In a cell construction when another LC system was brought in between such gel layers, it was found that a pretilt angle within the LC system was induced. The induced pretilt angle was found to be easily controllable by varying the thickness of the gel layer and a wide range of pretilt angles could be induced.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3988ce2df7042b4179cff8fadad60729 https://doi.org/10.1063/1.349582 Zobrazit plný text záznamu