Liquid crystal alignment by covalently bound anisotropes
US6153272A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 1998 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | May 18, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/022
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polymer surface in contact with a liquid crystal medium is exposed to polarized light, whereby a covalently bound anisotropic component of the polymer surface aligns in response to the polarized light. Alignment of the anisotropic component causes alignment of the liquid crystal medium. An interference pattern of two polarized lights causes the covalently bound anisotropic component to form microgrooves on the polymer surface. A liquid crystal cell includes at least one polymer surface that has a covalently bound anisotropic component that can align in response to polarized light and a liquid crystal in contact with the polymer surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.