Patent ID: 6744479
Filing Date: 2004-06-01
Classification: G02F

Abstract:
An active matrix display device comprising:a substrate having a gate signal line and a drain signal line; a thin film transistor that is driven being supplied with a scanning signal from the gate signal line, the thin-film transistor having a gate electrode that is made of a material different than the gate signal line and has a part of which is directly laid on or under the gate signal line to establish electrical connection, and a pixel electrode that is supplied with a video signal from the drain signal line via the thin-film transistor, wherein thin film metal layers are formed on a drain region and a source region, respectively, of the first thin-film transistor and/or each of the second thin-film transistors, and portions of the respective said thin film metal layers are exposed through respective contact holes that are formed through a passivation film that covers thin-film transistor, and wherein the metal layers are formed at the same time as a gate electrode of the thin-film transistor is formed.