Light control sheet, light control device, and method of controlling the light control sheet
US11686965B2 · kind B2 · utility
1Cited by
2References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 28, 2021 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Dec 28, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/01
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light control sheet including a light control layer switchable between a transparent state and an opaque state, and transparent electrode layers sandwiching the light control layer. The light control layer includes a transparent polymer layer that has domains whose average size is 1.0 μm-1.55 μm, and the light control layer includes a liquid crystal composition at a concentration of 37%-55% such that the liquid crystal composition fills the domains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.