Electrically controllable device having variable diffusion by liquid crystals, and method for same
US12001111B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Mar 26, 2021 |
| Grant date | Jun 4, 2024 |
| Priority date | — |
| Expiry date | Mar 26, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device having variable scattering by liquid crystals includes a stack with a first electrode, an electroactive layer with liquid crystals being stabilized by the polymeric network, and a second electrode. The material exhibits, from a temperature referred to as T1, a mesophase referred to as P. At a temperature T′ greater than or equal to T1, the stack is capable of exhibiting at least three stable and reversible scattering states in the visible range and a variable color.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.