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    Electrophoretic ink composed of particles with field dependent mobilities
    2.
    发明授权
    Electrophoretic ink composed of particles with field dependent mobilities 有权

    公开(公告)号：US07038655B2

    公开(公告)日：2006-05-02

    申请号：US10298468

    申请日：2002-11-18

    申请人： Craig A. Herb ,  Libing Zhang

    发明人： Craig A. Herb ,  Libing Zhang

    IPC分类号： G09G3/34

    CPC分类号： G02F1/167 ,  G02F2001/1678 ,  G09G3/344 ,  G09G2310/06

    摘要： An electrophoretic display has a viewing surface, and includes an image pixel. The image pixel includes a first plurality of particles having a first mobility, and a second plurality of particles having a second mobility. At a first addressing voltage, the first mobility is greater than the second mobility. At a second addressing voltage, the second mobility is greater than the first mobility. At least one of the first and second mobilities is a variable function of voltage, i.e., a function of an applied electric field. Application of the first addressing voltage produces a first optical state, which is determined by a motion of the first plurality of particles. Application of the second addressing voltage produces a second optical state determined by a motion of the second plurality of particles.

    Threshold addressing of electrophoretic displays
    6.
    发明授权
    Threshold addressing of electrophoretic displays 有权
    电泳显示器的阈值寻址

    公开(公告)号：US06693620B1

    公开(公告)日：2004-02-17

    申请号：US09564125

    申请日：2000-05-03

    申请人： Craig A. Herb ,  Ian D. Morrison ,  Andrew L. Loxley

    发明人： Craig A. Herb ,  Ian D. Morrison ,  Andrew L. Loxley

    IPC分类号： G09G334

    CPC分类号： G02F1/167 ,  G02F2001/1678 ,  G09G3/344 ,  G09G2310/06

    摘要： Methods and apparatus for an electrophoretic display in which the particle motion is a controlled, non-linear function of the applied electric field. Threshold addressing allows simple, inexpensive passive addressing techniques to be employed. The inverse electrorheological gating techniques allow the construction of a full color, passively addressed display without the need to address individual capsules. A mixture of capsules is coated randomly onto a substrate enabling the creation of inexpensive displays. All the techniques allow a significant threshold to be realized. Rapid movement of the pigment particles above the threshold allows rapid switching times for the display. Since diffusion and gravity are extremely weak forces compared to the yield stresses created, the structured or gelled medium approach provides a great improvement in the bistability of the displays.

    摘要翻译： 电泳显示的方法和装置，其中粒子运动是施加电场的受控非线性函数。 阈值寻址允许使用简单，便宜的无源寻址技术。 逆电流门控技术允许构建全彩色被动寻址的显示器，而不需要解决单个胶囊。 将胶囊混合物随机地涂覆在基材上，从而能够制造便宜的显示器。 所有这些技术允许实现明显的阈值。 颜料颗粒的快速移动高于阈值允许显示器的快速切换时间。 由于与产生的屈服应力相比，扩散和重力是非常弱的力，所以结构化或凝胶介质方法在显示器的双稳态方面提供了很大的改进。

    Processes for the production of electrophoretic displays
    10.
    发明授权
    Processes for the production of electrophoretic displays 有权
    生产电泳显示器的工艺

    公开(公告)号：US07339715B2

    公开(公告)日：2008-03-04

    申请号：US10807594

    申请日：2004-03-24

    申请人： Richard M. Webber ,  Thomas H. Whitesides ,  Guy M. Danner ,  Craig A. Herb ,  Charles H. Honeyman ,  Michael McCreary

    发明人： Richard M. Webber ,  Thomas H. Whitesides ,  Guy M. Danner ,  Craig A. Herb ,  Charles H. Honeyman ,  Michael McCreary

    IPC分类号： G02B26/00

    CPC分类号： C25D13/00 ,  G02F1/167

    摘要： A coating of an encapsulated electrophoretic medium is formed on a substrate (106) by dispersing in a fluid (104) a plurality of electrophoretic capsules (102), contacting at least a portion of a substrate (106) with the fluid (104); and applying a potential difference between at least a part of the portion of the substrate (106) contacting the fluid (104) and a counter-electrode (110) in electrical contact with the fluid (104), thereby causing capsules (102) to be deposited upon at least part of the portion of the substrate (106) contacting the fluid (102). Patterned coatings of capsules containing different colors may be deposited in registration with electrodes using multiple capsule deposition steps. Alternatively, a patterned coating may be deposited upon a substrate containing a conductive layer by varying the conductivity of the conductive layer by radiation exposure or by coating portions of the conductive layer with an insulating layer, typically a photoresist.

    摘要翻译： 通过在液体（104）中分散多个电泳胶囊（102），将基底（106）的至少一部分与流体（104）接触，形成在基底（106）上的包封的电泳介质的涂层。 以及在与所述流体（104）接触的所述基底（106）的所述部分的至少一部分与与所述流体（104）电接触的对电极（110）之间施加电位差，由此使得所述胶囊（102） 沉积在与流体（102）接触的基底（106）的部分的至少一部分上。 可以使用多个胶囊沉积步骤将含有不同颜色的胶囊的图案涂层沉积成与电极配准。 或者，通过通过辐射曝光改变导电层的导电性或通过用绝缘层（通常为光致抗蚀剂）涂覆导电层的部分，可以将图案化的涂层沉积在含有导电层的基板上。