Patent · US Active

Multi-color electro-optic displays

US8576476B2 · kind B2 · utility

102Cited by

63References

23Claims

0Family size

Assignee

E Ink Holdings Inc. · TW

Inventors

Stephen J. Telfer · Arlington, US
Richard J. Paolini, Jr. · Framingham, US
Sunil Krishna Sainis · Malden, US
Randall M. Hill · Ayer, US
Isaac W. Moran · Maynard, US
Lee Yezek · Watertown, US
Alain Bouchard · Boston, US
William T. Vetterling · Lexington, US
George G. Harris · Woburn, US
Hywel Morgan · New Penshaw, GB
Luke M. Slominski · Sharon, US
Jay William Anseth · Canton, US
Jennifer Quimby · Watertown, US
Craig A. Herb · Medford, US

Key dates

Filing date	May 23, 2011
Grant date	Nov 5, 2013
Priority date	—
Expiry date	May 23, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG02F2203/34
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An electro-optic display comprising at least two separate layers of electro-optic material, with one of these layers being capable of displaying at least one optical state which cannot be displayed by the other layer. The display is driven by a single set of electrodes between which both layers are sandwiched, the two layers being controllable at least partially independently of one another. Another form of the invention uses three different types of particles within a single electrophoretic layer, with the three types of particles being arranged to shutter independently of one another.

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