Image display device
US7830593B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Apr 2, 2009 |
| Grant date | Nov 9, 2010 |
| Priority date | — |
| Expiry date | May 20, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2001/1678
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image display device 10, having two substrates 11 and 12, at least one of which is transparent; and display particles 21 and 22 enclosed in the powder form between the substrates, the display particles being moved under an electric field generated between the substrates so that an image is displayed, wherein metal oxide fine particles 1 surface-treated with at least one processing agent selected from the group consisting of silane-coupling agents and silicone oils are adhered to at least one substrate surface 20a and/or 20b of the surfaces in contact with the display particles in a gap 18 between the substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.