Patent · US Active

Sub-threshold addressing and erasing in a magneto-electrophoretic writing medium

US11221685B2 · kind B2 · utility

2Cited by

50References

23Claims

0Family size

Assignee

E Ink Holdings Inc. · TW

Inventors

Crystal NGUYEN · Bedford, US
Evan Griffith · Marlborough, US
Seth J. Bishop · Framingham, US
Stephen J. Telfer · Arlington, US
Kosta Ladavac · Somerville, US
Andrew A. Drabek · Belmont, US
Sunil Krishna Sainis · Malden, US
Richard J. Paolini, Jr. · Framingham, US
Samantha MORRILL · Nashua, US

Key dates

Filing date	Dec 19, 2019
Grant date	Jan 11, 2022
Priority date	—
Expiry date	Dec 19, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG06F3/0383
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A magneto-electrophoretic medium that can be globally and locally addressed and erased. The medium provides a writeable display with no perceivable lag and the ability to write and erase with only minimal power requirements. In particular, the magneto-electrophoretic medium can be erased by providing a subthreshold electric stimulus and supplementing a second non-electric stimulus that disturbs the written state and allows the magneto-electrophoretic particles to return to their original state.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.