Liquid crystal composition and element used for phase control of electromagnetic wave signal
US12060514B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 13, 2021 |
| Grant date | Aug 13, 2024 |
| Priority date | — |
| Expiry date | Oct 20, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2019/3063
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A material used in an element for phase control of an electromagnetic wave signal having a frequency of 1 GHz to 10 THz. A liquid crystal composition containing at least one compound selected from a group of compounds represented by Formula (1), at least one compound selected from a group of compounds represented by Formula (2) and at least one compound selected from a group of compounds represented by Formula (3). In Formulae (1) to (3), R1, R21, R22, R31, and R32 may be alkyls having 1 to 12 carbon atoms; a ring A1 may be 1,4-phenylene; Z11, Z13, Z21, Z23, Z31, and Z33 may be single bonds; Z12, Z22, and Z32 may be —C≡C— or —C≡C—C≡C—; L13 to L16, L21 to L23, and L31 to L36 may be hydrogen or fluorine; Y11 and Y12 may be hydrogen or fluorine; and n1 may be 0.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.