Liquid crystal composition, element and liquid crystal lens or a birefringent lens for stereoscopic image display
US12252643B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 20, 2023 |
| Grant date | Mar 18, 2025 |
| Priority date | — |
| Expiry date | Nov 20, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2019/3425
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A liquid crystal composition as a material used for elements for controlling electromagnetic wave signals in a frequency range of 1 GHz to 10 THz, and an element containing this composition are provided. In the liquid crystal composition, a characteristic balance is excellent, and at least one of characteristics of a wide temperature range of a nematic phase, a large refractive index anisotropy in a frequency region used for control, and a small dielectric loss tangent (tan δ) is satisfied. A liquid crystal composition containing at least one compound selected from compounds represented by Formula (1) is provided: wherein R1 is an alkyl having 1 to 12 carbon atoms; ring A1 is 1,4-phenylene; L11, L13, L14, L16, Y11, and Y12 are each hydrogen; L12 is fluorine; and L15 is methyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.