E Ink Corporation

Other

Sunil Krishna Sainis

Stephen J Telfer

Richard J Paolini, Jr

George G Harris

Alain Bouchard

Lee Yezek

Seth J Bishop

William T Vetterling

Kosta Ladavac

Jay William Anseth

Craig A Herb

Luke M Slominski

Hywel Morgan

Isaac W Moran

Kenneth R Crounse

Randal M Hill

Jennifer M Morrison

Edward Buckley

Amit Deliwala

Benjamin Harris Paletsky

Crystal Nguyen

Samantha Morrill

Andrew A Drabek

Evan Griffith

Karl Raymond Amundson

Teck Ping Sim

Peter Carsten Bailey Widger

Jennifer Quimby

Stephen D Fantone

Carl Philip Taussig

Michael D McCreary

Ana L Lattes

Dirk Hertel

Shi-Lin Li

David Paul Biss

Paul Apen

Joseph Fillion

Randall M Hill

Colleen Shea

Giovanni Mancini

Ming-Chuan Hung

Richard J Paolini

Jr Richard J Paolini

Continuous waveforms for driving a four-particle electrophoretic medium including four different types of particles, for example a set of scattering particles and three sets of subtractive particles. Methods for identifying a preferred waveform for a target color state or a target transition when using a continuous or quasi-continuous voltage driver/controller.

Continuous waveform driving in multi-color electrophoretic displays

Systems and methods are disclosed for pressure-sensitive, electrophoretic displays, which may optionally include haptic feedback. A display may comprise a first conductive layer having a pressure-sensitive conductivity and an electrophoretic layer positioned adjacent to the first conductive layer, wherein the electrophoretic layer is in electrical communication with the first conductive layer and is configured to locally change state based on a pressure applied to the first conductive layer. Local and global writing and erasing of the display can also be achieved.

Pressure-sensitive writing media comprising electrophoretic materials

A variable light transmission device has at least one layer of electrophoretic medium comprising charged particles. Application of a an electric field having a waveform formed by a superposition of a carrier and a modulator waveform enables the switching of the device from a closed state to an open state, wherein the open state has higher light transmission than the closed state. As a result, the device enables the selection of the desired optical state by the user.

Driving methods for a variable light transmission device

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.

Method for driving two layer variable transmission display

A system for rendering color images on an electro-optic display when the electro-optic display has a color gamut with a limited palette of primary colors, and/or the gamut is poorly structured (i.e., not a spheroid or obloid). The system uses an iterative process to identify the best color for a given pixel from a palette that is modified to diffuse the color error over the entire electro-optic display. The system additionally accounts for variations in color that are caused by cross-talk between nearby pixels.

Method for rendering color images

A color electrophoretic display with distinct switching areas formed by a segmented top plane electrode opposite driving pixel electrodes. The distinct areas are programmed to switch at different times, thereby reducing the 'flashiness' seen by a viewer during an image update. In one embodiment, the color electrophoretic medium of the display includes a reflective white particle and three other sets of particles, each comprising a different subtractive color.

Color electrophoretic display with segmented top plane electrode to create distinct switching areas

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.

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

A hybrid reflective-emissive display including an electrophoretic medium. The electrophoretic medium includes two types of oppositely-charged, and differently-colored, particles in a fluid. The electrophoretic medium is disposed between a front light-transmissive electrode and a rear electrode including a plurality of apertures, such as a hexagonal grid. The electrophoretic layer is optionally illuminated by a light source disposed on the opposite side of the rear electrode from the electrophoretic medium. A viewer can see either the first or second type of particle at the viewing surface, or one of the particles can be illuminated by the light source, thus emitting light the color of one of the particles.

Hybrid reflective-emissive display for use as a signal light

A display device () comprises a reflective display () arranged to render a first image viewable through a viewing surface and a projection means (-) arranged to render a second image viewable in reflection on the viewing surface, the reflective display () and the projection means (-) being mounted on a common frame.

Illumination systems for reflective displays

Growing community of inventors

Melrose, MA, United States of America

Sunil Krishna Sainis