Hybrid polymer materials for liquid crystal alignment layers
US6900271B2 · kind B2 · utility
4Cited by
11References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 17, 2002 |
| Grant date | May 31, 2005 |
| Priority date | — |
| Expiry date | Jun 17, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133788
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides novel hybrid polymer optical alignment layers for inducing alignment of a liquid crystal medium. Hybrid polymers of this invention comprise at least one component of a macromonomer or polymer within the class of polyimide, polyamic acids and esters thereof, and at least one additional component from the group consisting of an addition monomer, monomers and addition polymer that are covalently bonded with the first component to form a copolymer. The invention further describes liquid crystal displays comprising the novel branched hybrid polymer optical alignment layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.