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    • 1. 发明申请
    • ELECTROFLUIDIC CHROMATOPHORE (EFC) DISPLAY APPARATUS
    • 电子色谱(EFC)显示设备
    • WO2012047097A1
    • 2012-04-12
    • PCT/NL2011/050667
    • 2011-10-03
    • POLYMER VISION B.V.HUITEMA, Hjalmar Edzer AycoVAN LIESHOUT, Petrus Johannes Gerardus
    • HUITEMA, Hjalmar Edzer AycoVAN LIESHOUT, Petrus Johannes Gerardus
    • G09G3/34G02B26/02
    • G09G3/3433G02B26/004G09G3/348G09G2300/06G09G2310/0254
    • According to an aspect of the invention, there is provided a display apparatus comprising a plurality of electrofluidic chromatophore (EFC) pixel cells. Each pixel cell comprises a fluid holder for holding a polar fluid and a non-polar fluid having differing display properties, the fluid holder comprising a reservoir with a geometry having a small visible area projected in the direction of a viewer onto the polar fluid, and a channel with a geometry having a large visible area projected in the direction of a viewer onto the polar fluid. The channel is connected to the reservoir so as to enable free movement of the polar fluid and non-polar fluid between the channel and the reservoir. At least part of a surface of the channel comprises a wetting property responsive to a supply voltage over the pixel cell and defining (i) a stable region wherein the supply voltage stabilizes polar fluid in the channel; (ii) a fill region that controls filling of polar fluid in the channel and (iii) a retract region that controls retracting of polar fluid in the channel. At least two pixel cell terminals are configured to supply the supply voltage to at least part of the surface of the channel comprising the wetting property for supply voltage controlled channel movement of polar fluid. The display further comprises a driver operative to provide controlled column voltages and any of a predefined row select or non-select voltage. A circuit board comprises a row electrode and a column electrode each directly connecting the driver to the pixel cell terminals for supplying the supply voltage to the pixel cell terminals as a voltage difference between the row and column electrodes in a passive matrix configuration.
    • 根据本发明的一个方面,提供了一种显示装置,其包括多个电流体色差(EFC)像素单元。 每个像素单元包括用于保持极性流体和具有不同显示特性的非极性流体的流体保持器,所述流体保持器包括具有在观察者方向上投射到极性流体上的具有小可见区域的几何形状的储存器,以及 具有在观察者的方向上投射到极性流体上的具有大的可见区域的几何形状的通道。 通道连接到储存器,以使得极性流体和非极性流体能够在通道和储存器之间自由移动。 通道的表面的至少一部分包括响应于像素单元上的电源电压的润湿特性并且限定(i)稳定区域,其中电源电压稳定通道中的极性流体; (ii)控制通道中的极性流体的填充的填充区域和(iii)控制通道中极性流体回缩的回缩区域。 至少两个像素单元端子被配置为将电源电压提供给通道的表面的至少部分,其包括用于电极电压控制的极性流体的通道运动的润湿特性。 显示器还包括驱动器,其操作以提供受控的列电压和预定义的行选择或非选择电压中的任一个。 电路板包括行电极和列电极,每个行电极和列电极将驱动器直接连接到像素单元端子,用于将像素单元端子的电源电压作为无源矩阵配置中的行电极与列电极之间的电压差。