Electrophoretic display
US8830561B2 · kind B2 · utility
22Cited by
19References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2012 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Mar 21, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1681
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is directed to an electrophoretic display comprising: (a) microcups comprising partition walls and top-openings; (b) an organic-based electrophoretic fluid filled in the microcups, wherein said fluid comprises charged pigment particles dispersed in a solvent; and (c) a top-sealing layer formed from a sealing composition to enclose the electrophoretic fluid within the microcups. The sealing composition comprises: (i) a water soluble polymer, (ii) a water-based suspension, a water-based dispersion, a water-based emulsion, or a water-based latex, each comprising a polymer; and (iii) water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.