EMBEDDED LOCATION CODES FOR E-BRUSH POSITION DETERMINATION

摘要

An electronic ink stack (70) employs a pair of electrodes (71, 74, 78), an electronic ink layer (73), and an optional photoconductor layer (72, 76). The electronic ink layer (73)and the photoconductor layer (72, 76), if employed, are disposed between the electrodes (71, 74, 78),. One or more location codes (75, 76, 79) are embedded within the electronic ink stack (70) in one or both electrodes (71, 74, 78), and/or the photoconductor layer (72, 76) , if employed.