Electrophoretic displays containing magnetic particles
US6870661B2 · kind B2 · utility
269Cited by
89References
38Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 2002 |
| Grant date | Mar 22, 2005 |
| Priority date | — |
| Expiry date | Feb 27, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/094
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrophoretic medium comprises a plurality of one or more types of particles suspended in a suspending fluid. The particles include at least one electrically charged, electrophoretically mobile particle capable of translating through the suspending fluid upon application of an electric field to the medium and at least one magnetic particle. A magnet is disposed adjacent the electrophoretic medium to introduce a threshold resistance to magnetic particle movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.