Method and apparatus for controlling liquid crystal states
US11391977B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Sep 26, 2018 |
| Grant date | Jul 19, 2022 |
| Priority date | — |
| Expiry date | Sep 26, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/36
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method is disclosed of electrically controlling state transition of a liquid crystal material in a device (200). The device (200) comprises the liquid crystal material (213) and a polymeric structure (210) consisting of polymerised liquid crystal material with a selected liquid crystal state. The method comprises: applying an electric field to the liquid crystal material (213) to force the liquid crystal material (213) into a high-energy state; reducing the strength of the electric field to cause a lower-energy state region of the liquid crystal material (213) to nucleate on at least a part of the polymeric structure (210).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.