Additive for improving optical performance of an electrophoretic display
US8902491B2 · kind B2 · utility
121Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2011 |
| Grant date | Dec 2, 2014 |
| Priority date | — |
| Expiry date | Sep 23, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2001/1678
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention is directed to an electrophoretic fluid comprising uncharged or lightly charged neutral buoyancy particles. The resulting fluid can improve not only image stability but also contrast ratio of a display device, without significantly affecting the switching speed. The present invention is also directed to an electrophoretic display comprising display cells filled with the electrophoretic fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.