Liquid crystal composition and liquid crystal display device
US8444878B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 3, 2010 |
| Grant date | May 21, 2013 |
| Priority date | — |
| Expiry date | Jun 16, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2323/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
SubjectThe subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding two or more characteristics. The subject is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.Means for Solving the SubjectThe invention provides a liquid crystal composition that has a nematic phase and includes a specific four-ring compound having a high maximum temperature as a first component, a compound having a specific bonding group and a large dielectric anisotropy as a second component, and a specific two-ring compound having a small viscosity as a third component, and provides a liquid crystal display device containing the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.