公开(公告)号：WO2023014574A1

公开(公告)日：2023-02-09

申请号：PCT/US2022/038707

申请日：2022-07-28

Applicant: E INK CORPORATION

Inventor： AMUNDSON, Karl, Raymond ,  LADAVAC, Kosta ,  TELFER, Stephen, J. ,  LAUBER, Dan, John ,  BULL, Darwin, Scott

IPC: G02F1/167 ,  G02F1/16756 ,  G02F1/1676 ,  G02F1/16757

Abstract: An electrophoretic display (100) comprises an electrophoretic medium (114) having electrically charged particles disposed in a fluid and capable of moving through the fluid on application of an electric field. An electrode (104, 120) is disposed adjacent the electrophoretic medium and arranged to apply an electric field thereto. A dielectric layer (106, 118) is disposed between the electrophoretic medium (114) and the electrode (104, 120) and has at least one aperture (107, 119) extending therethrough. The provision of the apertures (107, 119) in the dielectric layers enables the dielectric layers (106, 118) to protect the electrodes (104, 120) while reducing electro-optical kickback. When multiple electrodes (104, 120) are present adjacent the electrophoretic medium (114), more than one or all of the electrodes (104, 120) may be provided with apertured dielectric layers (106, 118).

公开(公告)号：WO2017062345A1

公开(公告)日：2017-04-13

申请号：PCT/US2016/055294

申请日：2016-10-04

Applicant: E INK CORPORATION

Inventor： WU, Ziyan ,  FEICK, Jason D. ,  ABORN, James H. ,  LOCK, John ,  LADAVAC, Kosta ,  DUNKERLEY, Erik ,  DU, Hui ,  BARYKINA-TASSA, Olga Vladimirovna

IPC: C09K11/02 ,  C09K3/00 ,  G02F1/15

CPC classification number: G02F1/167 ,  C09D5/44 ,  C09D5/4407 ,  C09D5/4411 ,  C09D5/4476 ,  C09D5/448 ,  G02F2001/1672 ,  G02F2001/1678

Abstract: 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 of at least 10 carbon atoms in length. The formulations show improved switching speeds, as well as a larger dynamic range at low temperatures (i.e., below about 0 °C), where compared to state-of-the-art electrophoretic media.

Abstract translation: 可以结合到显示器，前平面层压板，倒置的前平面层压板或换色膜中的电泳介质的改进配方。 制剂包括非极性流体，多个第一带电粒子和包含季胺和包含至少10个碳原子长度的单体的不饱和聚合尾料的电荷控制剂（CCA）。 与现有技术的电泳介质相比，配方显示了改进的开关速度以及在低温下（即低于约0℃）的较大动态范围。

公开(公告)号：WO2023043714A1

公开(公告)日：2023-03-23

申请号：PCT/US2022/043292

申请日：2022-09-13

Applicant: E INK CORPORATION

Inventor： TELFER, Stephen J. ,  NGUYEN, Crystal ,  DELIWALA, Amit ,  LADAVAC, Kosta ,  HOOGEBOOM, Christopher L.

IPC: G09G3/34 ,  G02F1/167 ,  G09G3/20

Abstract: A system for simplified driving of electrophoretic media using a positive and a negative voltage source, where the voltage sources have different magnitudes, and a controller that cycles the top electrode between the two voltage sources and ground while coordinating driving at least two drive electrodes opposed to the top electrode. The resulting system can achieve roughly the same color states as compared to supplying each drive electrode with six independent drive levels and ground. Thus, the system simplifies the required electronics with only marginal loss in color gamut. The system is particularly useful for addressing an electrophoretic medium including four sets of different particles, e.g., wherein three of the particles are colored and subtractive and one of the particles is light-scattering.

公开(公告)号：WO2022060700A1

公开(公告)日：2022-03-24

申请号：PCT/US2021/050201

申请日：2021-09-14

Applicant: E INK CORPORATION

Inventor： TELFER, Stephen J. ,  LADAVAC, Kosta ,  HOOGEBOOM, Christopher L.

IPC: G02F1/167 ,  G02F1/1676 ,  G09G3/34 ,  G02F1/1675

Abstract: Improved methods for driving a four particle electrophoretic medium including a scattering particle and at least two subtractive particles. Such methods allow displays such as a color electrophoretic display including a backplane having an array of thin film transistors, wherein each thin film transistor includes a layer of metal oxide semiconductor. The metal oxide transistors allow faster, higher voltage switching, and thus allow direct color switching of a four-particle electrophoretic medium without a need for top plane switching. As a result, the color electrophoretic display can be updated faster and the colors are reproduced more reliably.

公开(公告)号：WO2019209240A1

公开(公告)日：2019-10-31

申请号：PCT/US2018/028824

申请日：2018-04-23

Applicant: E INK CORPORATION

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

IPC: G02F1/17 ,  G02F1/19

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：WO2020112343A1

公开(公告)日：2020-06-04

申请号：PCT/US2019/060877

申请日：2019-11-12

Applicant: E INK CORPORATION

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

IPC: G06F3/041 ,  G06F3/044 ,  G02F1/167

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：WO2014186449A1

公开(公告)日：2014-11-20

申请号：PCT/US2014/037979

申请日：2014-05-14

Applicant: E INK CORPORATION

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

IPC: G02F1/167

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

Abstract: An electrophoretic medium (800; 1000l 1100) comprises a fluid (806) and at least a first species of particles (804; 1004; 1104) disposed in the fluid (806). When a first addressing impulse is applied to the medium (800; 1000; 1100), the first species of particles (804; 1004; 1104) 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 polarity, is applied to the medium (800; 1000; 1100), the first species of particles (804; 1004; 1104) move in the opposed direction relative to the electric field.

Abstract translation: 电泳介质（800; 10001100）包括设置在流体（806）中的流体（806）和至少第一种颗粒（804; 1004; 1104）。 当第一寻址脉冲被施加到介质（800; 1000; 1100）时，第一种颗粒（804; 1004; 1104）相对于电场在一个方向上移动，但是当第二寻址脉冲大于 第一寻址脉冲但具有相同的极性被施加到介质（800; 1000; 1100）上，第一种类的颗粒（804; 1004; 1104）相对于电场在相对的方向上移动。

公开(公告)号：WO2020132362A1

公开(公告)日：2020-06-25

申请号：PCT/US2019/067672

申请日：2019-12-19

Applicant: E INK CORPORATION

Inventor： NGUYEN, Crystal ,  GRIFFITH, Evan ,  BISHOP, Seth J. ,  TELFER, Stephen J. ,  LADAVAC, Kosta ,  DRABEK, Andrew A. ,  SAINIS, Sunil Krishna ,  PAOLINI, Richard J., Jr. ,  MORRILL, Samantha

IPC: G02F1/1685 ,  G02F1/166 ,  G02F1/1675 ,  G09G3/34

Abstract: 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.

公开(公告)号：WO2020060797A1

公开(公告)日：2020-03-26

申请号：PCT/US2019/050320

申请日：2019-09-10

Applicant: E INK CORPORATION

Inventor： TELFER, Stephen J. ,  BULL, Stephen ,  CHUMA, John L. ,  HARRIS, George G. ,  LADAVAC, Kosta ,  SADUN, Allan

IPC: G02B27/22

Abstract: An apparatus for a three-dimensional display is disclosed that includes a waveguide having a pair of opposed faces configured to propagate radiation along its length, a radiation source optically coupled to the waveguide, at least one prismatic element having a face optically coupled to a face of the waveguide, and a layer of image modulating material optically coupled to a face of the waveguide. The image modulating material may be optically coupled to an area of a face of the waveguide, at least a portion of the area being located outside a perimeter of a face of the prismatic element.

公开(公告)号：WO2016040627A1

公开(公告)日：2016-03-17

申请号：PCT/US2015/049421

申请日：2015-09-10

Applicant: E INK CORPORATION

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

IPC: G02F1/167

CPC classification number: G02F1/167 ,  G02F2001/1678 ,  G09G3/2003 ,  G09G3/344 ,  G09G2300/0452 ,  G09G2310/068

Abstract: An electrophoretic medium comprises a fluid, a first, light scattering particle (1) (typically white) and second (2), third (3) and fourth (4) particles having three subtractive primary colors (typically magenta, cyan and yellow); at least two of these colored particles (2-4) being non-light scattering. The first (1) and second (2) particles bear polymer coatings such that the electric field required to separate an aggregate formed by the third (3) and the fourth (4) 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.

Abstract translation: 电泳介质包括具有三种减色原色（通常为品红色，青色和黄色）的流体，第一光散射颗粒（1）（通常为白色）和第二（2），第三（3）和第四（4）颗粒。 这些着色颗粒（2-4）中的至少两个是非光散射的。 第一（1）和第二（2）颗粒承载聚合物涂层，使得分离由第三（3）和第四（4）颗粒形成的聚集体所需的电场大于分离由任何 其他两种类型的颗粒。 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。