E Ink Corporation

E Ink Corporaiton

Air Products and Chemicals, Inc.

Charles Howie Honeyman

Richard J Paolini, Jr

Thomas Henry Whitesides

Guy Danner

Michael D McCreary

Gregg Michael Duthaler

Bin Wu

Craig A Herb

Shamus Ford Patry

Karl Raymond Amundson

David Darrell Miller

Anthony Edward Pullen

Richard M Webber

Lan Cao

Robert Waverly Zehner

Michael L Steiner

George G Harris

Libing Zhang

Seungman Sohn

Matthew A King

Barrett Comiskey

Russell J Wilcox

Jianna Wang

Stephen P Dudek

Michael D Walls

Kimberly L Houde

Harit Doshi

Simon Pang

Andrew Y Oleson

Anthony Zalesky

John Edward Cronin

Joseph M Jacobson

Jonathan D Albert

Andrew L Loxley

Ian D Morrison

Ara N Knaian

Jian Lin

Holly G Gates

John E Ritter

Steven J O'Neil

Jonathan L Zalesky

Kevin L Denis

Justin J Abramson

Emily J Pratt

Rajesh Chebiyam

Eva Chen

Elizabeth Moran Gates

James P Araujo

Tibyron Quinn

Alberto Goenaga

Richard D LeCain

Shafiq Fazel

Eric Howard Klingenberg

Peter J Valianatos

Qingye Zhou

Michael M McCreary

Suzanne Balko

Elizabeth A Moran

Guy M Danner

Thomas H Whitesides

Shafiq N Fazel

Richard J Paolini

A dielectrophoretic display is shifted from a low frequency closed state to a high frequency open state via at least one, and preferably several, intermediate frequency states; the use of such multiple frequency steps reduces flicker during the transition. A second type of dielectrophoretic display has a light-transmissive electrode through which the dielectrophoretic medium can be viewed and a conductor connected to the light-transmissive electrode at several points to reduce voltage variations within the light-transmissive electrode.

Methods for driving electrophoretic displays using dielectrophoretic forces

Ink jet printing can be used in the production of electro-optic displays for (a) forming a layer of a polymer-dispersed electrophoretic medium on a substrate; (b) forming a color electro-optic layer; (c) forming a color filter; and (d) printing electrodes and/or associated conductors on a layer of electro-optic material.

Electro-optic media produced using ink jet printing

A first electro-optic display comprises first and second substrates, and an adhesive layer and a layer of electro-optic material disposed between the first and second substrates, the adhesive layer comprising a mixture of a polymeric adhesive material and a hydroxyl containing polymer having a number average molecular weight not greater than about 5000. A second electro-optic display is similar to the first but has an adhesive layer comprising a thermally-activated cross-linking agent to reduce void growth when the display is subjected to temperature changes. A third electro-optic display, intended for writing with a stylus or similar instrument, is produced by forming a layer of an electro-optic material on an electrode; depositing a substantially solvent-free polymerizable liquid material over the electro-optic material; and polymerizing the polymerizable liquid material.

Electro-optic displays, and materials for use therein

Various types of edge seals for protecting electro-optic displays against environmental contaminants are described. In one type of seal, the electro-optic layer is sandwiched between a backplane and a protective sheet and a sealing material extends between the backplane and the protective sheet. In other seals, the protective sheet is secured to the backplane or to a second protective sheet adjacent the backplane. The electro-optic layer can also be sealed between two layers of adhesive or between one layer of adhesive and the backplane. Other seals make use of flexible tapes extending around the periphery of the display.

Electro-optic display with edge seal

The invention provides materials and methods (including driving methods) for reducing the effects of remnant voltages in electro-optic displays.

Electro-optic displays with reduced remnant voltage

An electrophoretic medium comprises an electrophoretic layer, a layer of lamination adhesive and a polymeric layer disposed between the electrophoretic layer and the lamination adhesive layer, the polymeric layer being impermeable to the fluid. A second form of electrophoretic medium has a layer of a complex of an alkali metal and a polymer in contact with the electrophoretic layer. A third form of electrophoretic medium comprises a plurality of discrete droplets of internal phase in a binder, and further comprises a salt.

Materials for use in electrophoretic displays

A color filter array is provided in an electro-optic display by ink jet printing a plurality of colored areas (R,G,B) on one surface of a layer of electro-optic material (), an adhesive layer or a protective layer. Alternatively, the ink jet printing may be effected on the same layers in various sub-assemblies used to produce electro-optic displays.

Color electro-optic displays, and processes for the production thereof

Growing community of inventors

Roslindale, MA, United States of America

Charles Howie Honeyman