Electrophoretic medium provided with spacers
US6392786B1 · kind B1 · utility
419Cited by
91References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 29, 2000 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Jul 30, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1679
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An encapsulated electrophoretic medium comprises a layer of capsules, each of these capsules comprising a liquid and at least one particle disposed within the liquid and capable of movement upon application of an electric field to the medium. A plurality of spacers are dispersed among the capsules. The medium can be formed by coating a mixture of capsules and spacers on a substrate, or by first coating the capsules and thereafter incorporating the spacers into the layer of capsules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.