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E Ink Corporation patents


Recent patent applications related to E Ink Corporation. E Ink Corporation is listed as an Agent/Assignee. Note: E Ink Corporation may have other listings under different names/spellings. We're not affiliated with E Ink Corporation, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "E" | E Ink Corporation-related inventors


Electrophoretic medium comprising a mixture of charge control agents

An electrophoretic medium including a mixture of charge control agents, for example quaternary amine salts of polyisobutylene combined with quaternary amine salts of polyesters. The described electrophoretic medium exhibits improved color saturation as compared to similar electrophoretic media having only one of the charge control agents.... E Ink Corporation

Polymer formulations for use with electro-optic media

Polymer formulations including urethane acrylates, adhesion promoters, and conductive monomers. By selecting suitable conductive monomers, it is possible to achieve formulations having a volume resistivity from 106 to 1010 Ohm·cm after being conditioned for one week at 25° C. and 50% relative humidity. Such formulations are suitable for incorporation into... E Ink Corporation

Electro-optic display apparatus

A display apparatus having a plurality of display surfaces controlled by a controller, the display apparatus having a mounting substrate for mounting the plurality of display surfaces. The mounting structure having a conductor layer for providing electrical connections to the plurality of display surfaces. The display apparatus may further have... E Ink Corporation

Components and methods for use in electro-optic displays

A front plane laminate useful in the manufacture of electro-optic displays comprises, in order, a light-transmissive electrically-conductive layer, a layer of an electro-optic medium in electrical contact with the electrically-conductive layer, an adhesive layer and a release sheet. This front plane laminate can be prepared as a continuous web, cut... E Ink Corporation

Image display medium driving device, image display apparatus, driving program, and computer-readable medium

A image display medium driving device includes a voltage application unit that applies a voltage between a pair of substrates, at least one of which is transparent, of an image display medium including plural types of particles which are sealed between the pair of substrates, are attached to the substrates,... E Ink Corporation

Mixtures of encapsulated electro-optic medium and binder with low solvent content

An electro-optic device includes a first substrate having a first conductive layer thereon; a second substrate having a second conductive layer thereon; and an electro-optic layer comprising electro-optic microcapsules in a 100% solids or substantially solvent free radiation curable binder, the electro-optic layer being disposed between the first and second... E Ink Corporation

Backplanes for electro-optic displays

A backplane for an electro-optic display that includes a data line, a transistor, a pixel electrode connected to the data line via the transistor, the pixel electrode positioned adjacent to part of the data line so as to create a data line/pixel electrode capacitance. The backplane further including a shield... E Ink Corporation

Stretchable electro-optic displays

A stretchable electro-optic display includes a layer of conductive material and an electrophoretic medium laminated to the layer of conductive material. The layer of conductive material also includes a plurality of nodes and a stretchable interconnect connecting first and second nodes of the plurality of nodes. A method of manufacturing... E Ink Corporation

Method for rendering color images

An image is rendered on a display having a limited number of primary colors by (104) combining input data representing the color of a pixel to be rendered with error data to form modified input data, determining in a color space the simplex (208—typically a tetrahedron) enclosing the modified input... E Ink Corporation

Magnetically-responsive display including a recording layer configured for local and global write/erase

A recording layer is described that comprises a magnetizable material configured to store an image represented by magnetized regions of the magnetizable material. The magnetizable material may be brought into proximity with a magnetically responsive display layer, which may cause a change in an optical state of the display layer... E Ink Corporation

Functionalized quinacridone pigments

Quinacridone pigments that are surface-functionalized with glycidyl methacrylate, maleic anhydride, or 4-methacryloxyethyl trimellitic anhydride to create a functionalized pigment. The functional groups are then activated to bond hydrophobic polymers, thereby coating the pigment with the hydrophobic polymers. The quinacridone pigments can be used for a variety of applications. They are... E Ink Corporation

Multi-color electrophoretic displays

A multi-color electrophoretic medium contains first, second and third species of particles. The first species of particles is light-scattering, while the second and third species of particles are transmissive. A method for driving such a display is also described.... E Ink Corporation

Foldable electro-optic display apparatus

An image display apparatus having a flexible electronic display comprising a bendable portion that is flexible and configured to display an image, a support member comprising a substantially planar portion that resists bending and a bending-protection portion that bends and protects the bendable portion of the flexible display, and a... E Ink Corporation

Electro-optic displays, and components for use therein

A method and system for forming filter elements on a plurality of display substrates using a digital imaging system operable to selectively deposit filter material at a plurality of deposition locations is disclosed. The method involves receiving orientation information defining a disposition of a plurality of pixels associated with the... E Ink Corporation

Electrode structures for electro-optic displays

where in Formulae I, R1-R4 may be substituted or unsubstituted alkyl or aryl groups, or heteroatomic groups containing hetero atoms of Groups V-VII of the periodic table, and substituents R1 and R2 (taken together), and/or R3 and R4, may form a ring.... E Ink Corporation

Methods for driving electro-optic displays

An electro-optic display having a plurality of pixels is driven from a first image to a second image using a first drive scheme, and then from the second image to a third image using a second drive scheme different from the first drive scheme and having at least one impulse... E Ink Corporation

Methods for driving color electrophoretic displays

An electrophoretic medium includes a fluid, a first, light scattering particle (typically white) and second, third and fourth particles having three subtractive primary colors (typically magenta, cyan and yellow); at least two of these colored particles being non-light scattering. The first and second particles bear polymer coatings such that the... E Ink Corporation

Color electrophoretic displays using same polarity reversing address pulse

An electrophoretic display comprising a fluid including a first species of particles and a charge control agent disposed between first and second electrodes. When a first addressing impulse have an electrical polarity is applied to the medium, the first species of particles move in one direction relative to the electric... E Ink Corporation

Methods for driving electro-optic displays

A method for driving an electro-optic display having a front electrode, a backplane and a display medium positioned between the front electrode and the backplane, the method comprising of applying a first driving phase to the display medium, the first driving phase having a first signal and a second signal,... E Ink Corporation

Electrophoretic particles and processes for the production thereof

Polymer shells similar to those described in U.S. Pat. No. 6,822,782 can be formed on pigment particles by (a) physi-sorping a reagent comprising polymerizable groups on to the pigment particles by treating the particle with a reagent having a polymerizable or polymerization-initiating group, such that the reagent will not desorb... E Ink Corporation

Electrophoretic particles and processes for the production thereof

Polymer shells similar to those described in U.S. Pat. No. 6,822,782 can be formed on pigment particles by (a) physi-sorping a reagent comprising polymerizable groups on to the pigment particles by treating the particle with a reagent having a polymerizable or polymerization-initiating group, such that the reagent will not desorb... E Ink Corporation

Method for driving electro-optic displays

A large area display having multiple sub-units arranged in rows and columns and a method of driving the multiple sub-units as a single display are provided. Each sub-unit has an associated pixel row driver and pixel column driver. The large area display may also include a chip select means that... E Ink Corporation

Electrophoretic displays

A variable transmission display comprises an electrophoretic medium having electrically charged particles dispersed in a fluid, the electrophoretic medium being capable of assuming a light-transmissive state and a substantially non-light-transmissive state; a light-transmissive first electrode disposed adjacent one side of the electrophoretic medium; light-transmissive second electrodes disposed adjacent the other... E Ink Corporation

Methods for driving electro-optic displays

A method of operating an electro-optic display in which an image is scrolled across the display, and in which a clearing bar is provided between two portions of the image being scrolled, the clearing bar scrolling across in display in synchronization with said two portions of the image, the writing... E Ink Corporation

Electrode structures for electro-optic displays

A sub-assembly for use in an electro-optic display, the sub-assembly comprising an electrically non-conductive substrate, a lamination adhesive layer, a light-transmissive electrically-conductive ceramic layer, and a light-transmissive non-ceramic electrically-conductive layer positioned between the light transmissive electrically-conductive ceramic layer and the lamination adhesive layer.... E Ink Corporation

Methods for driving electrophoretic displays using dielectrophoretic forces

A dielectrophoretic display has a substrate having walls defining a cavity, the cavity having a viewing surface and a side wall inclined to the viewing surface. A fluid is contained within the cavity; and a plurality of particles are present in the fluid. There is applied to the substrate an... E Ink Corporation

Three-dimensional display

Three-dimensional displays are described using electrophoresis or electro-wetting media to modulate the total internal reflection of light in a waveguide.... E Ink Corporation

Methods and operating an electro-optic display in white mode

Techniques for operating an electro-optic display to reduce the appearance of light edge artifacts in displayed images are described. A method for operating the electro-optic display includes detecting a null state transition of a first pixel when transitioning from a first image to a second image. The method further includes... E Ink Corporation

Electro-optic displays

Techniques and structures for measuring the kickback voltage of an active matrix electro-optic display, such as an electrophoretic display, are described. The active-matrix display includes a capacitor coupled to an electrode of the display. A signal path for measuring the kickback voltage is configured to avoid the capacitor coupled to... E Ink Corporation

Functionalized quinacridone pigments

Quinacridone pigments that are surface-functionalized with glycidyl methacrylate, maleic anhydride, or 4-methacryloxyethyl trimellitic anhydride to create a functionalized pigment. The functional groups are then activated to bond hydrophobic polymers, thereby coating the pigment with the hydrophobic polymers. The quinacridone pigments can be used for a variety of applications. They are... E Ink Corporation

Electro-optic displays, and materials for use therein

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... E Ink Corporation

Methods for sealing microcell containers with phenethylamine mixtures

A method for sealing a container having an opening by contacting the opening with a mixture including a phenethylamine and a first polymer, adding a fluid to be contained to the container, and then adding a second mixture, comprising a second polymer, whereupon an interaction between the first and second... E Ink Corporation

Electro-optic display with edge seal

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... E Ink Corporation

Variable color and transmission coverings

Variable transmission covering systems that can be used, for example, to control the amount of light passing through a window in a building. Using transmissive electrophoretic media that can switch between a first and second optical state, the invention can be used to change the color and/or transmissivity of a... E Ink Corporation

Electrophoretic media including charge control agents comprising quartenary amines and unsaturated polymeric tails

Improved formulations of electrophoretic media that can be incorporated into displays, front plane laminates, inverted front plane laminates, or color changing films. The formulations include a non-polar fluid, a plurality of first charged particles, and charge control agents (CCA) including a quaternary amine and an unsaturated polymeric tail comprising monomers... E Ink Corporation

03/30/17 / #20170088758

Polyurethane adhesive layers for electro-optic assemblies

Electro-optic assemblies and related materials (e.g., adhesive) for use therein are generally provided. The adhesive layer may comprise an end-capped polyurethane. Some adhesive layers comprise two or more reactive functional groups (e.g., reactive functional groups configured to react with one or more curing species such that, for example, at least... E Ink Corporation

03/30/17 / #20170090265

Aggregate particles for use in electrophoretic color displays

A multi-color display device has front and rear electrodes on opposed sides of an electrophoretic medium. The device has a voltage controller configured to apply a first and a smaller second potential difference, of either polarity, between the electrodes. The electrophoretic medium has first, second, and third species of particles... E Ink Corporation

03/16/17 / #20170075168

Process for the production of electro-optic displays, and color filters for use therein

Processes are provided for depositing multiple color filter materials on a substrate to form color filters. In a first process, the surface characteristic of a substrate is modified by radiation so that a flowable form of a first color filter material will be deposited on a first area, and converted... E Ink Corporation

03/16/17 / #20170075186

Tiled electro-optic displays having flexible substrate and protective layer

An electro-optic display including a large area flexible substrate, a plurality of electro-optic display units, and an encapsulating cover sheet secured to the flexible substrate that encapsulates the display units. The encapsulating cover sheet protects the display units from mechanical damage and makes the tiled display units appear as a... E Ink Corporation

03/16/17 / #20170076672

Apparatus and methods for driving displays

An apparatus for driving an electro-optic display may comprise a first switch designed to supply a voltage to the electro-optic display during a first driving phase, a second switch designed to control the voltage during a second driving phase and a resistor coupled to the first and second switches for... E Ink Corporation

03/09/17 / #20170068125

Controlled polymeric material conductivity for use in a two-phase electrode layer

An electro-optic assembly including a first and second substrate and a layer of electro-optic material disposed between the substrates. Each substrate includes a two-phase, light-transmissive, electrically-conductive layer comprising a first phase made of a highly electronically-conductive matrix and a second phase made of a polymeric material composition having a controlled... E Ink Corporation

03/02/17 / #20170061895

Devices and techniques for electronically erasing a drawing device

Devices and techniques for electronically erasing an externally addressed electrophoretic drawing device are described. An electronically-erasable drawing device comprises an electro-optic display medium and interdigitated electrodes disposed adjacent one surface of the medium and configured to drive the medium to an intermediate (gray) optical state. A mobile electronic drawing implement... E Ink Corporation

02/23/17 / #20170052422

Flexible electronic circuits and displays

A backplane for use in an electro-optic display comprises a patterned metal foil having a plurality of apertures extending therethrough, coated on at least side with an insulating polymeric material and having a plurality of thin film electronic devices provided on the insulating polymeric material.... E Ink Corporation

02/23/17 / #20170052753

Displays intended for use in architectural applications

A display (100) primarily intended for use on an external surface of a building comprises a weatherproof housing (310, 340); a bistable electro-optic medium (326) enclosed within and visible through the housing; an electrode (324, 330) enclosed within the weatherproof housing and arranged to drive the electro-optic medium; a power... E Ink Corporation

02/16/17 / #20170045965

Methods for driving electro-optic displays

A touch screen electro-optic display is arranged such that upon a touch being detected on the display surface, the display surface surrounding the touch “blinks” by being driven to a different optical state, then back to its original state. A second method uses a display having a pen or stylus... E Ink Corporation

01/26/17 / #20170022403

Polymer formulations for use with electro-optic media

Polymer formulations including urethane acrylates, adhesion promoters, and conductive monomers. By selecting suitable conductive monomers, it is possible to achieve formulations having a volume resistivity from 106 to 1010 Ohm·cm after being conditioned for one week at 25° C. and 50% relative humidity. Such formulations are suitable for incorporation into... E Ink Corporation

01/05/17 / #20170003570

Multi-layered electrophoretic displays

Apparatus and methods for forming a composite electrophoretic display comprised of multiple, stacked electrophoretic displays are described. The individual electrophoretic displays that form the composite display may be driven separately using different driving signals. The electrical connections for the individual displays may be configured to minimize the impact of the... E Ink Corporation








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