Patent ID: 8576348
Filing Date: 2013-11-05
Classification: G02B,G02F,H01L

Abstract:
1. A display device comprising: a thin film transistor over a substrate; a first conductive film over the substrate and connected with one of a source region and a drain region of the thin film transistor, the first conductive film comprising a first conductive layer, a second conductive layer over the first conductive layer, and a third conductive layer over the second conductive layer; a first insulating film including a first contact hole over the first conductive film; a second conductive film over the first insulating film; a second insulating film including a second contact hole over the second conductive film; and a third conductive film over the second insulating film and in contact with at least a part of the second conductive layer through the first contact hole and the second contact hole, wherein at least a part of the second contact hole overlaps with the first contact hole.