Patent ID: 7786430

Claim:
A layered structure comprising: a first substructure that has a patterned surface, the patterned surface including: one or more carrier-active surface parts, each on a respective electrically conductive electrode region; and one or more line surface parts, each on a respective electrically conductive line region that, in operation, carries electrical signals; and a second substructure over the patterned surface of the first substructure, the second substructure including: a transport layer on at least a set of the carrier-active surface parts; in operation, the transport layer transporting charge carriers in a thickness direction toward or away from the carrier-active surface parts in the set; and an electrically conductive layer over the transport layer; the layered structure including, over each of a set of the line surface parts, at least one of the following: an open region defined in the electrically conductive layer so that the electrically conductive layer does not extend substantially over the line surface part; and an electrically insulating layer portion covering the line surface part.