Patent ID: 6693681
Filing Date: 2004-02-17
Classification: G02F,G09G

Abstract:
An active matrix device comprising:a plurality of inverted stagger type thin film transistors formed on an insulating surface, each of the inverted stagger type thin film transistors having: a gate electrode comprising aluminum, a gate insulating film formed over said gate electrode, an amorphous semiconductor film comprising silicon and being formed on the gate insulating film; a channel region formed in the amorphous semiconductor film; a source region in contact with the channel region; a drain region in contact with the channel region; a plurality of gate lines and a plurality of data lines provided over said insulating surface in an intersecting relation via an insulating film, each of said gate lines being connected to the gate electrode wherein each of the plurality of gate lines comprises aluminum; a plurality of pixel electrodes electrically connected to one of said source and drain regions and arranged in a plurality of regions surrounded with the gate and data lines, respectively; and a leveling film to provide a leveled upper surface and to isolate said pixel electrodes from said gate and data lines, wherein each of said plurality of pixel electrodes overlaps one of said plurality of gate lines to form at first capacitance and another one of said plurality of gate lines to form a second capacitance and said first capacitance is equal to the second capacitance.