Printing on electrically writable media and electrically writable displays
US6982734B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2003 |
| Grant date | Jan 3, 2006 |
| Priority date | — |
| Expiry date | Feb 16, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/3855
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Apparatus and methods of printing on electrically writable media and electrically writable displays are described. In one aspect, a printer for printing on an electrically writable medium includes a source of an invisible charge species, and a charge species projector. The charge species projector is operable to project charge species from the source onto the medium to electrically reorient switchable display elements in the medium. In another aspect, a portable storage device that includes a memory and an electrically writable medium is received. Data is written to the memory of the portable data storage device. The electrically writable medium of the portable data storage device is printed on by electrically reorienting switchable display elements in the medium. In another aspect, an electrically writable display includes an electrically writable medium that is incorporated into a continuous web having an outward-facing side and an inward-facing side. The outward-facing side of the continuous web presents a display surface of the electrically writable medium. The electrically writable display further includes a scroll system that is operable to scroll the display surface of the e…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.