Electrophoresis display device
US6724521B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Mar 21, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Electrophoresis display devices using charged particles which move in each cell in accordance with the electrophoresis caused by electrodes neighboring the cell. First through third electrodes are used to provide the electrophoresis to the charged particles in a dispersion liquid of each cell. The first and the second electrodes are formed in parallel with each other on a side of a first board and the third electrode is formed on a second board 5 to intersect with the first and the second electrodes. The first electrode may be applied with an initial voltage, a first hold voltage and a rewriting voltage between the initial voltage and the first hold voltage in an order of the first voltage, the rewriting voltage and the first hold voltage. The second electrode may be applied with intermediary voltage between the initial voltage and the rewriting voltage to the first electrode. The third electrode may be applied with a color display voltage different from the intermediary voltage and second holds voltage in synchronism with the first hold voltage. The dispersion liquid may be sealed by a microcapsule or the like and a position of the microcapsule may be fixed by a projection formed …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.