E Ink Corporation

Russell J Wilcox

Paul Stephen Drzaic

Karl Raymond Amundson

Thomas Henry Whitesides

Guy Danner

Barrett Comiskey

Joseph M Jacobson

Robert Waverly Zehner

Barrett O Comiskey

Richard J Paolini, Jr

Jonathan D Albert

Ian D Morrison

Lan Cao

Charles Howie Honeyman

Ara N Knaian

Holly G Gates

Allan Scott Baucom

Timothy J O'Malley, Jr

Alberto Goenaga

Gregg Michael Duthaler

Peter T Kazlas

Andrew L Loxley

Richard M Webber

Heather A Linden

Rajesh Chebiyam

Qingye Zhou

Michael L Steiner

Matthew J Aprea

Michael D McCreary

Libing Zhang

Anthony Edward Pullen

John E Ritter

Robert David Feeney

Charles Howard Honeyman

Peter J Valianatos

Matthew A King

Mavyn M Holman

Elizabeth Moran Gates

Suzanne Balko

Guy M Danner

Gregory L Goldfarb

Pehr C Anderson

Robert Feeney

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 electro-optic display comprises, in order, a light-transmissive electrically-conductive layer; a layer of a solid electro-optic material; and a backplane () bearing a plurality of pixel electrodes, a peripheral portion of the backplane extending outwardly beyond the layer of solid electro-optic material and bearing a plurality of radiation generating means () and a plurality of radiation detecting means (), the radiation generating means and radiation detecting means together being arranged to act as a touch screen.

Electro-optic displays with touch sensors and/or tactile feedback

A method for manufacturing a full color, reflective display includes the steps of depositing a first plurality of electrophoretic display elements in substantial registration with a first electrode and a second plurality of electrophoretic display elements in substantial registration with a second electrode. The electrophoretic display elements include a capsule containing a species of particles dispersed in a suspending fluid. The selective deposition of the display elements can be achieved by ink-jet printing methods, screen printing methods or other printing methods. In some embodiments the electrodes are printed onto the substrate before selective deposition of the display elements, while in other embodiments the substrate is provided having the electrodes already disposed on it. In still other embodiments, the sequence of printing of electrodes and electrophoretic display elements can be varied.

Methods for achieving improved color in microencapsulated electrophoretic devices

An electro-optic display comprises, in order, a light-transmissive electrically-conductive layer; a layer of a solid electro-optic material; and a backplane () bearing a plurality of pixel electrodes. A peripheral portion of the backplane extends outwardly beyond the layer of solid electro-optic material and bears a plurality of radiation generators () and a plurality of radiation detectors (), the radiation generators and detectors together being arranged to act as a touch screen.

A first apparatus for displaying drawings comprises a housing having an aperture, a drawing sheet comprising electro-optic material movable through the aperture between closed and open positions, and a writing device for writing on the sheet as it moved between its closed and open positions. A second apparatus comprises a display member having a viewing surface, support means for supporting this display member above a floor, an electro-optic medium disposed on the display member, and a movable writing head for writing on the electro-optic medium. Another display comprises an optic medium with two display states visible through a viewing surface. A touch screen is disposed on the opposed side of the optic medium from the viewing surface, and the optic medium is deformable such that pressure applied to the viewing surface will be transmitted to the touch screen.

Apparatus for displaying drawings

A full color, reflective display having superior saturation and brightness is achieved with a novel display element comprising multichromatic elements. In one embodiment a capsule includes more than three species of particles which differ visually. One embodiment of the display employs three sub-pixels, each sub-pixel comprising a capsule including three species of particles which differ visually. Another embodiment of the display employs color filters to provide different visual states to the user. The display element presents a visual display in response to the application of an electrical signal to at least one of the capsules.

Full color reflective display with multichromatic sub-pixels

An electrophoretic medium has walls defining a microcavity containing an internal phase. This internal phase comprises electrophoretic particles suspended in a suspending fluid and capable of moving therethrough upon application of an electric field to the electrophoretic medium. The average height of the microcavity differs by not more than about 5 &#x3bc;m from the saturated particle thickness of the electrophoretic particle divided by the volume fraction of the electrophoretic particles in the internal phase.

Electrophoretic displays with controlled amounts of pigment

An electronic display comprises an electro-optic material (preferably an electrophoretic medium) having a plurality of pixels, and separate first, second and third sets of addressing means for addressing these pixels. Each of the pixels is associated with one addressing means in each of the three sets, such that addressing of any specific pixel requires application of signals within predetermined ranges to each of the three addressing means associated with the specific pixel being addressed. The display may be in the form of a multi-page electronic book.

Addressing schemes for electronic displays

A portable electronic device, for example a cellular telephone or a personal digital assistant, has an internal screen for the display of information, the electronic device also having an external screen arranged to receive information from the electronic device and being capable of displaying this information on an electro-optic medium. There is also provided a cellular telephone having a visual indicator comprising an electro-optic medium having at least two different display states, the electro-optic medium being arranged to change its display state when a call is received by the telephone.

Displays for portable electronic apparatus

A reflective electro-optic display () has a bar code display area () arranged to display a bar code readable by a bar code scanner.

Machine-readable displays

A process for creating an electronically addressable display includes multiple printing operations, similar to a multi-color process in conventional screen printing. In some of the process steps, electrically non-active inks are printed onto areas of the receiving substrate, and in other steps, electrically active inks are printed onto different areas of the substrate. The printed display can be used in a variety of applications. This display can be used as an indicator by changing state of the display after a certain time has elapsed, or when a certain pressure, thermal, radiative, moisture, acoustic, inclination, pH, or other threshold is passed. In one embodiment, the display is incorporated into a battery indicator. A sticker display is described. The sticker is adhesive backed and may then be applied to a surface to create a functional information display unit. This invention also features a display that is both powered and controlled using radio frequencies. It describes a complete system for controlling, addressing, and powering a display. The system includes an antenna or antennae, passive charging circuitry, and active control system, a display, and an energy storage unit. There is also a separate transmitter that provides the remote power for the display. The system is meant to be used anywhere it is useful to provide intermittent updates of information such as in a store, on a highway, or in an airport. A tile-based display allowing a modular system for large area display is created using a printable display material.

Adhesive backed displays

Growing community of inventors

Natick, MA, United States of America

Russell J Wilcox