Patent ID: 7957054

Claim:
An electro-optical display system, comprising: a plurality of electrodes; a display volume containing a fluid having a plurality of colorant particles; a layer adjacent to or part of at least one electrode of the plurality of electrodes and configured to at least one of (i) reflect at least one wavelength of light or (ii) absorb at least one wavelength of light; a dielectric layer having two opposed surfaces, one of the opposed surfaces contacting one of the plurality of electrodes or the layer and an other of the opposed surfaces contacting the display volume; and recessed regions defined in the dielectric layer and configured to contain the plurality of colorant particles, wherein the plurality of electrodes are configured to selectively move the plurality of colorant particles between a compacted position in which all or nearly all of the plurality of colorant particles are in the recessed regions, and a spread position in which the plurality of colorant particles are spread across the display volume.