Multiplex addressing of electrochromic displays
AssigneeAmerican Cyanamid Company
InventorRobert D. Giglia
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Abstract
An electrochromic data display and imaging device which may be formed by sandwich arrangement of the imaging area and the counter-electrode area with a suitable ion-conducting layer between. The imaging area is in the form of discrete electrochromic areas in a desired pattern, and a circuit is provided for multiplexing these areas to provide alphanumeric or other type displays.
Claims6
A display system comprising a plurality of persistent electrochromic display elements and means to multiplex said display elements, said means comprising diode means to provide a sufficient threshold voltage only to each display element to be displayed or erased and voltage threshold conduction means connected to each display element so that only a directly addressed element will be activated.
Dependencies are inferred from the claim text.