ELECTROPHORETIC DISPLAY WITH TWO PARTICLE TYPES OF THE SAME POLARITY BUT DIFFERENT SIZE DISTRIBUTIONS
    4.
    发明申请
    ELECTROPHORETIC DISPLAY WITH TWO PARTICLE TYPES OF THE SAME POLARITY BUT DIFFERENT SIZE DISTRIBUTIONS 审中-公开
    具有相同极性的两种颗粒类型的电泳显示,但具有不同的尺寸分布

    公开(公告)号:WO2004072721A1

    公开(公告)日:2004-08-26

    申请号:PCT/US2004/003531

    申请日:2004-02-04

    CPC classification number: G02F1/167

    Abstract: This invention relates to an electrophoretic display having display cells filled with an electrophoretic composition which comprises a bi-modal particle system dispersed in a dielectric solvent or solvent mixture. The term "bi-modal" refers to an electrophoretic dispersion comprising two types of particles of distinctly different sizes and size distribution. The first type is a primary pigment particle while the second type is a filler particle having a size small enough to fit inside the interstices formed by the particles of the first type. The two types of particles have substantially the same switching rate. The display has shown a higher % reflectance or whiteness, a higher contrast ratio, improved threshold characteristics and better bistability.

    Abstract translation: 本发明涉及一种电泳显示器,其具有填充有电泳组合物的显示单元,该电泳组合物包括分散在介电溶剂或溶剂混合物中的双峰颗粒系统。 术语“双模态”是指包含明显不同尺寸和尺寸分布的两种类型的颗粒的电泳分散体。 第一类型是主颜料​​颗粒,而第二类型是具有足够小尺寸的填料颗粒,以填充由第一类型的颗粒形成的间隙内。 两种类型的颗粒具有基本上相同的切换速率。 显示器显示出更高的反射率或白度,更高的对比度,改善的阈值特性和更好的双稳态性。

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