Patent · US Expired

Electro-optic displays, and methods for driving same

US6950220B2 · kind B2 · utility

504Cited by

84References

25Claims

0Family size

Assignee

E Ink Holdings Inc. · TW

Inventors

Justin Abramson · Wayland, US
Karl R. Amundson · Cambridge, US
Guy M. Danner · Somerville, US
Gregg M. Duthaler · Brookline, US
Holly G. Gates · Somerville, US
Charles Howie Honeyman · Brookline, US
Ara N. Knaian · Newton, US
Ian D. Morrison · Acton, US
Steven J. O'Neil · Pembroke, US
Richard J. Paolini, Jr. · Framingham, US
Anthony Pullen · Tucson, US
Jianna Wang · Grafton, US
Jonathan L. Zalesky · Watertown, US
Robert W. Zehner · Cambridge, US
John Edward Cronin · Williston, US

Key dates

Filing date	Mar 18, 2003
Grant date	Sep 27, 2005
Priority date	—
Expiry date	Mar 18, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG02F2201/42
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention relates to electro-optic displays and methods for driving such displays. The invention provides (i) electrochromic displays with solid charge transport layers; (ii) apparatus and methods for improving the contrast and reducing the cost of electrochromic displays; (iii) apparatus and methods for sealing electrochromic displays from the outside environment and preventing ingress of contaminants into such a display; and (iv) methods for adjusting the driving of electro-optic displays to allow for environmental and operating parameters.

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