Electrophoretic display and method of making the same
US6337761B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 1999 |
| Grant date | Jan 8, 2002 |
| Priority date | — |
| Expiry date | Oct 1, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/1681
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A configuration for an electrophoretic display device is described that is effective in substantially preventing agglomeration of pigment particles. A suspension medium is contained between first and second electrodes to define an electrophoretic display cell; a plurality of pigment particles are dispersed in the suspension medium and a plurality of mechanical members project therein. The members advantageously are sized sufficiently small such that a plurality of members can exist within a minimally visible region of the cell. The mechanical members may be fabricated separately from the remaining parts of the display, allowing for flexibility in the fabrication materials and processing conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.