Polymerizable liquid crystal compound and optical film
US6805920B2 · kind B2 · utility
11Cited by
2References
30Claims
0Family size
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Key dates
| Filing date | Apr 11, 2002 |
| Grant date | Oct 19, 2004 |
| Priority date | — |
| Expiry date | Jun 15, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2323/03
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention provides a polymerizable liquid crystal compound having a large value of &Dgr;n/n, excellent in coating properties on an alignment film and easily aligned. Disclosed is a polymerizable liquid crystal compound having at least one polymerizable reactive group and showing nematic liquid crystal properties, having a &Dgr;n/n value of 0.14 or more wherein n is average refractive index and &Dgr;n is extraordinary light refractive index (ne) minus ordinary light refractive index (no), and being aligned by application onto an alignment film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.