公开(公告)号：US09995987B1

公开(公告)日：2018-06-12

申请号：US15463328

申请日：2017-03-20

申请人： E Ink Corporation

发明人： Stephen J. Telfer ,  Craig A. Herb ,  Lee Yezek

IPC分类号： G02F1/167 ,  C08K5/00 ,  C08J3/215 ,  B01J13/18

CPC分类号： G02F1/167 ,  B01J13/185 ,  C08J3/215 ,  C08J2375/02 ,  C08K5/0091 ,  G02F2001/1678

摘要： A composite particle is provided that includes a base particle and a plurality of hydrophilic oligomeric groups extending from an exterior portion of the base particle, the base particle including a cross-linked polyurea and at least one of a pigment and a dye. The cross-linked polyurea may form a network throughout the base particle. A method of making the composite particle includes providing either a solution containing a dye or a dispersion containing a pigment in a water-dispersible polyfunctional isocyanate dissolved in a water-miscible solvent, forming an emulsion of the solution/dispersion in water, agitating the emulsion while the polyfunctional isocyanate is converted into a cross-linked polyurea, and separating the composite particle containing the cross-linked polyurea and the dye/pigment from the emulsion.

公开(公告)号：US09953588B1

公开(公告)日：2018-04-24

申请号：US14668004

申请日：2015-03-25

申请人： E INK CORPORATION

发明人： Stephen J. Telfer ,  Richard J. Paolini, Jr. ,  Stephen Bull ,  Joshua A. Ritchey ,  Kosta Ladavac ,  Lee Yezek ,  Craig A. Herb ,  Peter Carsten Bailey Widger

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

CPC分类号： G09G3/344 ,  G02F1/167 ,  G02F2202/36 ,  G02F2203/30 ,  G09G3/3453 ,  G09G2310/0275 ,  G09G2340/16 ,  H01B3/10

摘要： 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.

公开(公告)号：US20160085132A1

公开(公告)日：2016-03-24

申请号：US14849658

申请日：2015-09-10

申请人： E INK CORPORATION

发明人： Stephen J. Telfer ,  Stephen Bull ,  Jennifer M. Morrison ,  Luke M. Slominski ,  David Darrell Miller ,  Olga Vladimirovna Barykina-Tassa ,  Christopher L. Hoogeboom ,  Ana L. Lattes ,  Lee Yezek ,  Brandon MaCDonald ,  Kosta Ladavac ,  Craig A. Herb

IPC分类号： G02F1/167 ,  G02F1/133

CPC分类号： G02F1/167 ,  C09B67/0013 ,  G02F2001/1678 ,  G09G3/2003 ,  G09G3/344 ,  G09G2300/0452 ,  G09G2310/068

摘要： 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.

摘要翻译： 电泳介质包括流体，第一光散射颗粒（通常为白色）和具有三种减色原色（通常为品红色，青色和黄色）的第二，第三和第四颗粒; 这些有色颗粒中的至少两个是非光散射的。 第一和第二颗粒承载聚合物涂层，使得分离由第三和第四颗粒形成的聚集体所需的电场大于分离由任何其它两种类型的颗粒形成的聚集体所需的电场。 还描述了用于驱动介质以产生白色，黑色，品红色，青色，黄色，红色，绿色和蓝色的方法。

公开(公告)号：US11614671B2

公开(公告)日：2023-03-28

申请号：US17548753

申请日：2021-12-13

申请人： E Ink Corporation

发明人： Stephen J. Telfer ,  Craig A. Herb ,  Lee Yezek

IPC分类号： G02F1/167 ,  C08K5/00 ,  G02F1/1675

摘要： A composite particle is provided that comprises a base particle comprising at least a pigment or dye and cross-linked polyurea, a plurality of hydrophilic oligomeric groups, and a plurality of amine groups on the exterior portion of the base particle, and a steric stabilization polymer which is chemically bonded or physi-sorbed on the surface of the base particle. The cross-linked polyurea may form a network throughout the base particle. A method of making the composite particle includes providing either a solution containing a dye or a dispersion containing a pigment in a water-dispersible polyfunctional isocyanate dissolved in a water-miscible solvent, forming an emulsion of the solution/dispersion in water, agitating the emulsion while the polyfunctional isocyanate is converted into a cross-linked polyurea, and separating the composite particle containing the cross-linked polyurea and the dye/pigment from the emulsion.

公开(公告)号：US10705405B2

公开(公告)日：2020-07-07

申请号：US15947027

申请日：2018-04-06

申请人： E Ink Corporation

发明人： Stephen J. Telfer ,  Craig A. Herb ,  Lee Yezek

IPC分类号： G02F1/167 ,  C08K5/00 ,  G02F1/1675

摘要： A composite particle is provided that includes a base particle and a plurality of hydrophilic oligomeric groups extending from an exterior portion of the base particle, the base particle including a cross-linked polyurea and at least one of a pigment and a dye. The cross-linked polyurea may form a network throughout the base particle. A method of making the composite particle includes providing either a solution containing a dye or a dispersion containing a pigment in a water-dispersible polyfunctional isocyanate dissolved in a water-miscible solvent, forming an emulsion of the solution/dispersion in water, agitating the emulsion while the polyfunctional isocyanate is converted into a cross-linked polyurea, and separating the composite particle containing the cross-linked polyurea and the dye/pigment from the emulsion.

公开(公告)号：US09989829B2

公开(公告)日：2018-06-05

申请号：US15059424

申请日：2016-03-03

申请人： E Ink Corporation

发明人： Stephen J. Telfer ,  Richard J. Paolini ,  Sunil Krishna Sainis ,  Randal M. Hill ,  Isaac W. Moran ,  Lee Yezek ,  Alain Bouchard ,  William Vetterling ,  George G. Harris ,  Hywel Morgan ,  Luke Slominski ,  Jay William Anseth ,  Jennifer M. Morrison ,  Craig A. Herb

IPC分类号： G02B26/00 ,  G03G17/04 ,  G09G3/34 ,  G02F1/133 ,  G02F1/167 ,  G02F1/01 ,  G02F1/1347

CPC分类号： G02F1/167 ,  G02F1/01 ,  G02F1/1347 ,  G02F2001/1672 ,  G02F2001/1676 ,  G02F2001/1678 ,  G02F2201/16 ,  G02F2203/30 ,  G02F2203/34

摘要： 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.

公开(公告)号：US11567388B2

公开(公告)日：2023-01-31

申请号：US16776042

申请日：2020-01-29

申请人： E INK CORPORATION

发明人： Jin-Gyu Park ,  Richard J. Paolini, Jr. ,  Peter Carsten Bailey Widger ,  Jillian Smith ,  Jay William Anseth ,  Craig A. Herb ,  George G. Harris ,  Mark Benjamin Romanowsky

IPC分类号： G02F1/167 ,  G02F1/1676 ,  G02F1/16757 ,  C08L33/12 ,  G02F1/1681 ,  C08K3/04 ,  G02F1/1675

摘要： An electro-optic media includes either a plurality of microcapsules in a binder, a polymeric sheet containing sealed microcells, or droplets in a continuous polymeric phase. Each of the microcapsules, microcells, or droplets contain a dispersion that includes a plurality of charged composite particles and a suspending fluid, and the charged particles move through the suspending fluid under the influence of an electric field. The composite particles include one or more types of pigment particles that are at least partially coated with a polymeric material. Each of the binder, polymeric sheet, continuous polymeric phase, the charged composite particles, and the suspending fluid have an index of refraction, and a difference between the index of refraction of the composite particles and at least one of the binder, polymeric sheet, continuous polymeric phase, and solvent is less than or equal to 0.05 at 550 nm.

公开(公告)号：US11029576B2

公开(公告)日：2021-06-08

申请号：US16662533

申请日：2019-10-24

申请人： E Ink Corporation

发明人： Stephen J. Telfer ,  Richard J. Paolini, Jr. ,  Sunil Krishna Sainis ,  Randal M. Hill ,  Isaac W. Moran ,  Lee Yezek ,  Alain Bouchard ,  William Vetterling ,  George G. Harris ,  Hywel Morgan ,  Luke Slominski ,  Jay William Anseth ,  Jennifer M. Morrison ,  Craig A. Herb

IPC分类号： G02B26/00 ,  G03G17/04 ,  G09G3/34 ,  G02F1/133 ,  G02F1/16757 ,  G02F1/167 ,  G02F1/1681 ,  G02F1/1675 ,  G02F1/1347

摘要： 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.

公开(公告)号：US10678111B2

公开(公告)日：2020-06-09

申请号：US15854124

申请日：2017-12-26

申请人： E INK CORPORATION

发明人： 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分类号： G02B25/00 ,  G02F1/167 ,  G09G3/34 ,  G09G3/20 ,  C09B67/08 ,  G02F1/1675

摘要： 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：US10475399B2

公开(公告)日：2019-11-12

申请号：US16263532

申请日：2019-01-31

申请人： E Ink Corporation

发明人： 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分类号： G09G3/34 ,  G02F1/167 ,  G02F1/1675

摘要： 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.