Hybrid polymer materials for liquid crystal alignment layers
US6919404B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2002 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | Oct 18, 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 are prepared from at least one component selected from the group consisting of monomer, macromonomer and polymer within the class of polyimides, poly(amic acids) and esters thereof and at least one component selected from the group consisting of addition monomer and functionalized addition polymer wherein the two components are covalently bonded 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.