Liquid crystal alignment layer
US7357965B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2000 |
| Grant date | Apr 15, 2008 |
| Priority date | — |
| Expiry date | Apr 9, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/1135
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of making a liquid crystal alignment layer comprising the steps of: (i) providing a layer on a substrate, the layer comprising a polythiophene according to formula (I):wherein R1 and R2 each independently represent hydrogen or a C1-C4 alkyl group or together represent a C1-C4 alkylene group or a cycloalkylene group; and (ii) mechanically rendering the layer liquid crystal aligning; a liquid crystal alignment layer obtainable by the above-mentioned method; a liquid crystal device incorporating the above-mentioned liquid crystal alignment layer; a liquid crystal display comprising the above-mentioned liquid crystal alignment layer or the above-mentioned liquid crystal device; and the use of the polythiophene according to formula (I) for aligning liquid crystals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.