Patent ID: 7268366
Filing Date: 2007-09-11
Classification: H01L

Abstract:
1. A thin film transistor substrate, comprising: a thin film transistor on a substrate, said thin film transistor having a gate electrode, a gate insulating film over said gate electrode, a semiconductor layer on said gate insulating film and extending over said gate electrode, and source and drain electrodes over said semiconductor layer; a first insulating film over said thin film transistor, said first insulating film including a first opening that exposes part of said drain electrode; a second insulating film over said first insulating film, said second insulating film including a second opening that exposes part of said drain electrode and a top surface of said first insulating film that is adjacent said first opening; a first transparent electrode on said second insulating film, wherein said first transparent electrode extends into said first opening and said second opening, wherein said first transparent electrode is in electrical contact with said drain electrode, and wherein said first transparent electrode extends over a top surface of said first insulating film that is adjacent said first opening; a third insulating film over said second insulating film and said first transparent electrode, said third insulating film including a third opening that exposes a part of said first transparent electrode in electrical contact with said drain electrode; and a second transparent electrode on said third insulating film, wherein said transparent electrode extends into said second opening and said third opening, wherein said second transparent electrode is in electrical contact with said first transparent electrode.