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Display element and display device having it

Image Number 2 for United States Patent #6603444.

A display element has a plurality of pixels and is constructed to display image information by modulating light passing through each pixel. The display element has the following for each of the pixels: a mask having a shield portion in part; and a first fluid and an electroconductive or polar, second fluid being immiscible with each other. An amount of the light passing through the mask is regulated in such a way that a voltage applied to the second fluid of each pixel is varied to alter the shape of an interface between the first fluid and the second fluid, so as to increase or decrease light incident to the shield portion of the mask.

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