Image display medium and image display device
US7848009B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 2008 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Jun 22, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2001/1678
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image display medium includes a pair of substrates, a liquid that is enclosed between the substrates, first colored particles, second colored particles and third colored particles. The first colored particles are colored a first color and move in response to an electric field that is formed between the substrates. The second colored particles are colored a second color and move in an opposite direction of the first colored particles. The third colored particles are colored a third color, are configured to have a particle diameter such that the third colored particles move through clearances between the first colored particles and the second colored particles in a state in which the first colored particles and the second colored particles have aggregated together, and move in response to an electric field that is formed between the substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.