Patent ID: 6452241
Filing Date: 2002-09-17
Classification: G02F,H01L

Abstract:
A thin film transistor for a liquid crystal display device, comprising:a first light shielding film formed on a transparent substrate; a semiconductor layer for a transistor, said semiconductor layer being formed on said first light shielding film through a first interlayer insulating film; a gate electrode formed on said semiconductor layer through a gate insulating film and having a light shielding function; lightly doped drain (LDD) regions formed in areas of said semiconductor layer immediately below said gate electrode in positions on opposite sides of said gate electrode, respectively; a gate line formed on said gate electrode such that said gate line is positioned on a channel region defined between said LDD regions; a data line formed on said gate electrode and said gate line through a second interlayer insulating film and electrically connected to a source region of said semiconductor layer; and a pixel electrode formed on said data line through a third interlayer insulating film and electrically connected to a drain region of said semiconductor layer.