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119 条记录 (耗时 0.035 秒)

    Composite particles and method for making the same
    4.
    发明授权
    Composite particles and method for making the same 有权

    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.

    Digital microfluidic delivery device
    6.
    发明授权
    Digital microfluidic delivery device 有权

    公开(公告)号：US11511096B2

    公开(公告)日：2022-11-29

    申请号：US16601641

    申请日：2019-10-15

    申请人： E INK CORPORATION

    发明人： Richard J. Paolini, Jr. ,  Stephen J. Telfer ,  Timothy J. O'Malley ,  Brian D. Bean

    IPC分类号： A61M35/00

    摘要： An active molecule delivery system whereby active molecules can be released on demand and/or a variety of different active molecules can be delivered from the same system and/or different concentrations of active molecules can be delivered from the same system. The invention is well-suited for delivering pharmaceuticals to patients transdermally. In some embodiments, the system includes two separate reservoirs and a mixing area thereby allowing precursors to be mixed immediately before transdermal delivery.

    APPLICATIONS OF ELECTRO-OPTIC DISPLAYS
    7.
    发明申请
    APPLICATIONS OF ELECTRO-OPTIC DISPLAYS 有权

    公开(公告)号：US20220252954A1

    公开(公告)日：2022-08-11

    申请号：US17727949

    申请日：2022-04-25

    申请人： E Ink Corporation

    发明人： Jay William Anseth ,  Richard J. Paolini, JR. ,  Stephen J. Telfer ,  Yelena Kann ,  Thomas S. Blaine ,  Nishit Murari

    IPC分类号： G02F1/167 ,  G02F1/1676 ,  G03B21/56 ,  G02F1/01

    摘要： An image is formed on an architectural surface by applying to the surface, in order: a rear electrode layer; a light-transmissive front electrode layer; a photoconductive layer disposed between the front and rear electrode layers; and an electro-optic layer disposed between the front and rear electrode layers. A potential difference is applied between the front and rear electrode layers and the front electrode layer is imagewise exposed to radiation which causes a change in the conductivity of the photoconductive layer, thereby causing an imagewise change in the optical state of the electro-optic layer. Films for application to architectural surfaces are also provided.

    Woven electrophoretic material
    8.
    发明授权
    Woven electrophoretic material 有权

    公开(公告)号：US11086186B2

    公开(公告)日：2021-08-10

    申请号：US16404948

    申请日：2019-05-07

    申请人： E INK CORPORATION

    发明人： Ana L. Lattes ,  Stephen J. Telfer

    IPC分类号： G02F1/1685 ,  E06B9/24 ,  G02F1/133 ,  G02F1/167 ,  G02F1/1681

    摘要： 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 structure (or structures) that is placed in front of an object. In some embodiments, the variable transmission system can change transmission and color on command.

    Methods for driving electro-optic displays
    10.
    发明授权
    Methods for driving electro-optic displays 有权

    公开(公告)号：US10901285B2

    公开(公告)日：2021-01-26

    申请号：US16713753

    申请日：2019-12-13

    申请人： E INK CORPORATION

    发明人： Richard J. Paolini, Jr. ,  Stephen Bull ,  Seth J. Bishop ,  Stephen J. Telfer ,  Karl Raymond Amundson

    IPC分类号： G09G3/34 ,  G02F1/155 ,  G09G3/20 ,  G02F1/167 ,  G02F1/1676

    摘要： A first display comprises a layer of electro-optic material with first and second electrodes on opposed sides thereof, at least one electrode. One or both electrodes having at least two spaced contacts, and voltage control means are arranged to vary the potential difference between the two spaced contacts attached to the same electrode. A second display comprises 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 the two surfaces of the layer of electro-optic material, and have edges which overlap with 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.