Patent ID: 8022903

Claim:
An organic electro luminescence device comprising: an organic electro luminescence light emitting element; and a driving circuit for driving said organic electro luminescence light emitting element, wherein said driving circuit includes (A) an element driving transistor, (B) a video-signal write transistor, and (C) a capacitor having a pair of particular and other electrodes, with regard to said element driving transistor, (A-1) a source/drain area provided on a particular side of said element driving transistor to serve as a particular source/drain area of said element driving transistor is connected to a current supply section, and (A-2) a source/drain area provided on the other side of said element driving transistor to serve as another source/drain area of said element driving transistor is connected to the anode electrode of said organic electro luminescence light emitting element and said particular electrode of said capacitor, forming a second node, said video-signal write transistor is a transistor with a dual-gate structure including a first sub-transistor having a first channel creation area as well as a first gate electrode and including a second sub-transistor having a second channel creation area as well as a second gate electrode, a source/drain area provided on a particular side of said first sub-transistor to serve as a particular source/drain area of said first sub-transistor is connected to a data line, a source/drain area provided on the other side of said second sub-transistor to serve as another source/drain area of said second sub-transistor is connected to the gate electrode of said element driving transistor and said other electrode of said capacitor, forming a first node, said first gate electrode of said first sub-transistor and said second gate electrode of said second sub-transistor are connected to a scan line, said first gate electrode of said first sub-transistor faces a particular face of said first channel creation area of said first sub-transistor through a gate insulation layer sandwiched by said first gate electrode and said particular face of said first channel creation area, said second gate electrode of said second sub-transistor faces a particular face of said second channel creation area of said second sub-transistor through said gate insulation layer sandwiched by said second gate electrode and said particular face of said second channel creation area, said second sub-transistor has a shield electrode facing the other face of said second channel creation area through a shield insulation layer sandwiched by said shield electrode and said other face of said second channel creation area, and said shield electrode is connected to said other source/drain area of said second sub-transistor.