Patent ID: 6778198
Filing Date: 2004-08-17
Classification: G02B,H05K

Abstract:
A printed wiring board printhead for forming an image on electric paper comprisinga glass substrate having a first planar surface and a second planar surface, said first planar surface and said second planar surface being substantially parallel, said glass substrate having an edge between said first planar surface and said second planar surface; a plurality of conductive traces formed on said first planar surface of said glass substrate; a plurality of conductive bonding pads formed on said first planar surface of said glass substrate; a plurality of metal layers formed on ends of the plurality of conductive traces, said plurality of metal layers extending over said first planar surface of said glass substrate and partially onto said edge of said glass substrate; a plurality of electrodes formed where an end of said plurality of conductive traces and said plurality of metal layers are formed on said first planar surface of said glass substrate, said plurality of conductive traces connecting said a plurality of conductive bonding pads to said plurality of electrodes, said plurality of electrodes being substantially parallel and equally spaced apart; and a driver connected to said plurality of conductive bonding pads to send an electrical signal to each of said plurality of electrodes, said electrical signal generating an electric field between said electrode and said electric paper for controlling the corresponding individual pixel of said electric paper to form said image.