Nematic liquid crystal composition and bistable nematic liquid crystal display
US8252202B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 16, 2008 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Dec 27, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2323/03
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A nematic liquid crystal composition of the present invention includes at least 20% by weight of one, or two or more compounds selected from compound group A; and 5 to 50% by weight of one, or two or more compounds selected from compound group B, wherein the relative proportions of the above-mentioned compounds used in the nematic liquid crystal composition is determined to simultaneously obtain the specific physical characteristics for the composition, and an anchoring breaking voltage Uλ/4 is less than or equal to 25 V when the product (Δn·d) of the refractive index anisotropy (Δn) at 20° C. and the thickness (d) is 140 nm and the liquid crystal composition is confined between two substrates for a bistable nematic liquid crystal display in which at least one of the substrates have a weak zenithal anchoring force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.