Four particle electrophoretic medium providing fast, high-contrast optical state switching
US12044945B2 · kind B2 · utility
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33Claims
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Key dates
| Filing date | Apr 27, 2023 |
| Grant date | Jul 23, 2024 |
| Priority date | — |
| Expiry date | Apr 27, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2001/1678
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Improved electrophoretic media including a first particle of a first polarity and three particles of the opposite polarity, wherein the first particle and optionally one of the particles of the opposite polarity undergo a diminution of electrophoretic mobility with increased electric field. Such electrophoretic media enable full-color displays with very fast updates between white and black pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.