Process for inducing perpendicular alignment of liquid crystals
US4464134A · kind A · utility
9Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1981 |
| Grant date | Aug 7, 1984 |
| Priority date | — |
| Expiry date | Dec 10, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133719
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Liquid crystals are induced to assume substantially perpendicular alignment on the surfaces of substrates used to fabricate electro-optical device by causing long chain alcohols to react in the vapor phases with surface OH.sup.- inherently found on oxide coatings provided on the substrates. The process facilitates liquid crystal alignment in prefabricated electro-optical cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.