In an active matrix drive light emitting device, above a thin film transistor, a light emitting element having an anode, a layer comprised of an organic compound and a cathode containing an alkali metal is formed between a third insulating layer comprised of silicon nitride or silicon oxynitride and a fourth insulating layer containing carbon as its main constituent. The light emitting element isformed between partition layers that are formed of an insulating material and have an inverse tapered shape.