Patent 7206119 was granted and assigned to E Ink Corporation on April, 2007 by the United States Patent and Trademark Office.
Electro-optic displays contain a plurality of types of electro-optic media within a single layer. One form of display has separate areas which undergo different color changes so that the display can blink the same image in different colors. A second form of display has areas which switch at different rates so that images can appear transiently. A third form of display has a medium comprising multiple types of electro-optic elements having differing color states and switching speeds to allow display of a wide color gamut.