Methods for achieving improved color in microencapsulated electrophoretic devices
US7667684B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2004 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Dec 17, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/60
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for manufacturing a full color, reflective display includes the steps of depositing a first plurality of electrophoretic display elements in substantial registration with a first electrode and a second plurality of electrophoretic display elements in substantial registration with a second electrode. The electrophoretic display elements include a capsule containing a species of particles dispersed in a suspending fluid. The selective deposition of the display elements can be achieved by ink-jet printing methods, screen printing methods or other printing methods. In some embodiments the electrodes are printed onto the substrate before selective deposition of the display elements, while in other embodiments the substrate is provided having the electrodes already disposed on it. In still other embodiments, the sequence of printing of electrodes and electrophoretic display elements can be varied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.