Patent ID: 6989805

Claim:
A light emitting device comprising: a source signal line driver circuit; a gate signal line driver circuit; an opposing power source line driver circuit; a pixel portion comprising a plurality of pixels; a plurality of source signal lines connected to the source signal line driver circuit; a plurality of gate signal lines connected to the gate signal line driver circuit; a plurality of opposing rower source lines connected to the opposing power source line driver circuit; and a plurality of power source supply lines, wherein each pixel comprises: a switching TFT having a gate electrode connected to any one of the plural gate signal lines, and a source region and a drain region one of which is connected to any one of the plural source signal lines; an electro luminescence driver TFT, a gate electrode of said electro luminescence driver TFT connected to the other of said source region and said drain region of switching TFT; an electroluminescence element comprises a pixel electrode, an opposing electrode connected to any one of the plural opposing power source lines, and an electro luminescence layer provided between the pixel electrode and the opposing electrode; wherein the electro luminescence driver TFT has a source region connected to any one of the plural power source supply lines, and the electro luminescence driver TFT has a drain region connected to the pixel electrode.