公开(公告)号：US20240395220A1

公开(公告)日：2024-11-28

申请号：US18789739

申请日：2024-07-31

Applicant: E INK CORPORATION

Inventor： Stephen J. TELFER ,  Stephen BULL ,  Jennifer M. MORRISON ,  Luke M. SLOMINSKI ,  David Darrell MILLER ,  Olga Vladimirova BARYKINA-TASSA ,  Christopher L. HOOGEBOOM ,  Ana L. LATTES ,  Lee YEZEK ,  Brandon MACDONALD ,  Kosta LADAVAC ,  Craig A. HERB

IPC: G09G3/34 ,  C09B67/08 ,  G02F1/167 ,  G02F1/1675 ,  G02F1/1685 ,  G09G3/20

Abstract: An electrophoretic medium comprises 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 electric field required to separate an aggregate formed by the third and the fourth particles is greater than that required to separate an aggregate formed from any other two types of particles. Methods for driving the medium to produce white, black, magenta, cyan, yellow, red, green and blue colors are also described.

公开(公告)号：US20210132459A1

公开(公告)日：2021-05-06

申请号：US17088762

申请日：2020-11-04

Applicant: E Ink Corporation

Inventor： Stephen BULL

IPC: G02F1/167 ,  G02F1/1676 ,  G02F1/16755 ,  G02F1/1343 ,  G02F1/1333 ,  G02F1/1341 ,  G02F1/16757

Abstract: A method for making a non-planar (three-dimensional) electrophoretic display including a light-transmissive front substrate that functions as a viewing surface. A light-transmissive conductive layer is incorporated into, or adhered to, the light-transmissive front substrate, whereupon a layer of electrophoretic encapsulated media is attached thereto. After the electrophoretic medium is deposited, a back electrode is attached or deposited. When a voltage is provided between the light-transmissive conductive layer and the back electrode, the image state of the electrophoretic medium is switched, thereby creating a color-changing surface. Such a color-changing surface can be incorporated into a toy, an appliance, an electronic device, or other suitable structure.

公开(公告)号：US20230360614A1

公开(公告)日：2023-11-09

申请号：US18223647

申请日：2023-07-19

Applicant: E INK CORPORATION

Inventor： Peter Carsten Bailey WIDGER ,  Jay William ANSETH ,  Richard J. PAOLINI, JR. ,  Mark Benjamin ROMANOWSKY ,  Jillian SMITH ,  Stephen J. TELFER ,  Craig Alan BREEN ,  Stephen BULL

IPC: G09G3/34 ,  G02F1/167 ,  C09B67/08 ,  G02F1/1676 ,  G02F1/16757 ,  G02F1/1677 ,  G02F1/1675

CPC classification number: G09G3/344 ,  G02F1/167 ,  C09B67/0013 ,  G02F1/1676 ,  G02F1/16757 ,  G02F1/1677 ,  G02F1/1675 ,  B82Y30/00

Abstract: A variable transmission film may include an electrophoretic medium having a plurality of capsules and a binder, each capsule containing a plurality of electrically charged particles and a fluid, the charged particles being movable by application of an electric field and being capable of being switched between an open state and a closed state. The film may include at least one of a binder containing fish gelatin and a polyanion; a binder containing one or more tinting agents; capsules containing charge control agents, such as an oligoamine-terminated polyolefin and a branched chain fatty acid comprising at least 8 carbon atoms; a selection of capsules in which at least 60% have a diameter between 50 μm and 90 μm and at least 15% have a diameter between 20 μm and 49 μm; a tinted adhesive layer; and a fluid selected from one or more nonconjugated olefinic hydrocarbons.

公开(公告)号：US20180136532A1

公开(公告)日：2018-05-17

申请号：US15852807

申请日：2017-12-22

Applicant: E INK CORPORATION

Inventor： Richard J. PAOLINI, JR. ,  Stephen BULL ,  Seth J. BISHOP ,  Karl Raymond AMUNDSON ,  Stephen J. TELFER ,  George G. HARRIS

IPC: G02F1/167 ,  G02F1/1362 ,  G02F1/1343

CPC classification number: G02F1/167 ,  G02F1/13439 ,  G02F1/136286 ,  G02F1/1368 ,  G02F1/155 ,  G02F2001/134318 ,  G02F2001/1672 ,  G02F2001/1676

Abstract: A first display includes a layer of electro-optic material with first and second electrodes on opposed sides thereof. One or both electrodes have at least two spaced contacts. Voltage control means are arranged to vary the potential difference between the two spaced contacts attached to the same electrode. A second display includes a layer of electro-optic material with a sequence of at least three electrodes adjacent thereto. Voltage control means vary the potential difference between the first and last electrodes of the sequence. The electrodes of the sequence alternate between two surfaces of the layer of electro-optic material, and have edges that overlap or lie adjacent the preceding and following electrodes of the sequence. The electrodes, other than the first and last, are electrically isolated such that the potential thereof is controlled by passage of current through the layer of electro-optic material. Methods for driving these displays are also provided.

公开(公告)号：US20200035171A1

公开(公告)日：2020-01-30

申请号：US16585453

申请日：2019-09-27

Applicant: E INK CORPORATION

Inventor： Stephen J. TELFER ,  Stephen BULL ,  Alain BOUCHARD ,  Craig A. HERB ,  Kosta LADAVAC ,  Ana L. LATTES ,  Jennifer M. MORRISON ,  Richard J. PAOLINI, JR. ,  Michael Thomas REGAN ,  Luke M. SLOMINSKI ,  Lee YEZEK ,  Kenneth R. CROUNSE ,  J. Ryan KRUSE ,  Christopher L. HOOGEBOOM ,  Jason D. FEICK ,  David Darrell MILLER

IPC: G09G3/34 ,  G02F1/167

Abstract: 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 field, but when a second addressing impulse, larger than the first addressing impulse but having the same electrical polarity, is applied to the medium, the first species of particles move in the opposed direction relative to the electric field.

公开(公告)号：US20180247599A1

公开(公告)日：2018-08-30

申请号：US15959614

申请日：2018-04-23

Applicant: E INK CORPORATION

Inventor： Stephen J. TELFER ,  Richard J. PAOLINI, Jr. ,  Stephen BULL ,  Joshua A. RITCHEY ,  Kosta LADAVAC ,  Lee YEZEK ,  Craig A. HERB ,  Peter Carsten Bailey WIDGER

IPC: G09G3/34 ,  G02F1/167 ,  H01B3/10

Abstract: A variable transmission medium comprises a fluid and a plurality of nanoparticles dispersed in the fluid, wherein addition of acid to the fluid causes the nanoparticles to flocculate and form aggregates of particles that scatter light. The nanoparticles may comprise at least one metal oxide, such as titanium dioxide, zinc oxide or zirconium dioxide. The fluid may have a dielectric constant less than about 10. The medium may be used in, for example, privacy glass for a conference room.

公开(公告)号：US20170287407A1

公开(公告)日：2017-10-05

申请号：US15606058

申请日：2017-05-26

Applicant: E Ink Corporation

Inventor： Stephen J. TELFER ,  Stephen BULL ,  Alain BOUCHARD ,  Craig A. HERB ,  Kosta LADAVAC ,  Ana L. LATTES ,  Jennifer M. MORRISON ,  Richard J. PAOLINI, JR. ,  Michael Thomas REGAN ,  Luke M. SLOMINSKI ,  Lee YEZEK ,  Kenneth R. CROUNSE ,  J. Ryan KRUSE ,  Christopher L. HOOGEBOOM ,  Jason D. FEICK ,  David Darrell MILLER

IPC: G09G3/34 ,  G02F1/167

CPC classification number: G09G3/344 ,  G02F1/167 ,  G02F2001/1678 ,  G09G2310/06 ,  G09G2310/068

Abstract: 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 field, but when a second addressing impulse, larger than the first addressing impulse but having the same electrical polarity, is applied to the medium, the first species of particles move in the opposed direction relative to the electric field.

公开(公告)号：US20200174336A1

公开(公告)日：2020-06-04

申请号：US16680950

申请日：2019-11-12

Applicant: E INK CORPORATION

Inventor： John L. CHUMA ,  Allan SADUN ,  Stephen J. TELFER ,  Stephen BULL ,  Sunil Krishna SAINIS ,  Seth J. BISHOP ,  Richard J. PAOLINI, JR. ,  Kosta LADAVAC

IPC: G02F1/1685 ,  G02F1/167 ,  G02F1/01

Abstract: 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.

公开(公告)号：US20190164505A1

公开(公告)日：2019-05-30

申请号：US16263532

申请日：2019-01-31

Applicant: E Ink Corporation

Inventor： Stephen J. TELFER ,  Stephen BULL ,  Alain BOUCHARD ,  Craig A. HERB ,  Kosta LADAVAC ,  Ana L. LATTES ,  Jennifer M. MORRISON ,  Richard J. PAOLINI, JR. ,  Michael Thomas REGAN ,  Luke M. SLOMINSKI ,  Lee YEZEK ,  Kenneth R. CROUNSE ,  J. Ryan KRUSE ,  Christopher L. HOOGEBOOM ,  Jason D. FEICK ,  David Darrell MILLER

IPC: G09G3/34 ,  G02F1/167

CPC classification number: G09G3/344 ,  G02F1/167 ,  G02F2001/1678 ,  G09G2310/06 ,  G09G2310/068

Abstract: 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 field, but when a second addressing impulse, larger than the first addressing impulse but having the same electrical polarity, is applied to the medium, the first species of particles move in the opposed direction relative to the electric field.

公开(公告)号：US20180364542A1

公开(公告)日：2018-12-20

申请号：US16008180

申请日：2018-06-14

Applicant: E INK CORPORATION

Inventor： Peter Carsten Bailey WIDGER ,  Jay William ANSETH ,  Richard J. PAOLINI, JR. ,  Mark Benjamin ROMANOWSKY ,  Jillian SMITH ,  Stephen J. TELFER ,  Craig Alan BREEN ,  Stephen BULL

IPC: G02F1/167 ,  G09G3/34 ,  C09B67/08

Abstract: A variable transmission film may include an electrophoretic medium having a plurality of capsules and a binder, each capsule containing a plurality of electrically charged particles and a fluid, the charged particles being movable by application of an electric field and being capable of being switched between an open state and a closed state. The film may include at least one of a binder containing fish gelatin and a polyanion; a binder containing one or more tinting agents; capsules containing charge control agents, such as an oligoamine-terminated polyolefin and a branched chain fatty acid comprising at least 8 carbon atoms; a selection of capsules in which at least 60% have a diameter between 50 μm and 90 μm and at least 15% have a diameter between 20 μm and 49 μm; a tinted adhesive layer; and a fluid selected from one or more nonconjugated olefinic hydrocarbons.