Patent ID: 7935967

Claim:
A light-emitting device comprising: a first insulating film having an opening over a first substrate; a buried interconnection formed in the opening; a second insulating film over the first insulating film and overlapping with the buried interconnection; a third insulating film over the second insulating film and overlapping with the buried interconnection; a contact hole in the second insulating film and the third insulating film reaching the buried interconnection; a thin film transistor over the third insulating film, wherein the thin film transistor is electrically connected to the buried interconnection through the contact hole; a light emitting element electrically connected to the thin film transistor, wherein the light emitting element comprises: a first electrode; a layer containing organic compound provided on and in contact with the first electrode; and a second electrode provided on and in contact with the layer containing organic compound, and a second substrate over the light emitting element, wherein the buried interconnection is any one of a gate line, a source line and a power supply line.