Method for manufacturing image displaying medium
US6842278B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2000 |
| Grant date | Jan 11, 2005 |
| Priority date | — |
| Expiry date | Oct 11, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03G17/06
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for manufacturing an image displaying medium is provided in that a display element in the form of powder can be filled between facing substrates. After patterning spacer particles on a first flat substrate supplied from a first film roller set on a first roller shaft by a first electrostatic coating device, they are fixed by a first fixing device to form a spacer on the first flat substrate, and then black particles are coated, on the entire surface by a second electrostatic coating device. After coating white particles thereon by a third electrostatic coating device, the black particles and the white particles on the upper part of the spacer are removed by a blade, and a second flat substrate supplied from a second film roller set on a second roller shaft is superimposed, followed by fixing the upper part of the spacer and the second flat substrate by a second fixing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.