Image display apparatus
US7952794B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2010 |
| Grant date | May 31, 2011 |
| Priority date | — |
| Expiry date | May 21, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1675
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An image display apparatus including: two substrates at least one of which is transparent; and display particles that are sealed between the substrates in a powder state so that by generating an electric field between the substrates, the display particles are moved to display an image; wherein, of contact surfaces with the display particles in a gap between the substrates, both of the surfaces on the substrate sides have oxide layers of the same metal, and the display particles include positively chargeable display particles and negatively chargeable display particles, and both of the positively chargeable display particles and the negatively chargeable display particles have structures obtained by successively forming oxide layers of the same metal as that of the metal oxide layers possessed by the surfaces on the substrate sides and organic layers on the surfaces of base particles that contain at least a resin and a colorant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.