Patent ID: 7393707

Claim:
A method of manufacturing a light emitting device comprising: forming a thin film transistor over a substrate; forming a first insulating film comprising an organic resin over the thin film transistor; forming a second insulating film comprising at least one selected from the group consisting of silicon nitride, aluminum oxide, aluminum nitride, nitrated aluminum oxide and diamond like carbon over the first insulating film; forming a first electrode electrically connected to the thin film transistor, over the second insulating film, and in contact with the second insulating film so as to cover the first insulating film; forming a bank covering an edge of the first electrode, over the second insulating film; forming an EL layer by ink jet method; forming a second electrode covering the bank and the EL layer; and forming a third insulating film covering the second electrode, wherein the EL layer is disposed adjacent to a side edge of the bank, and wherein the EL layer does not extend beyond the side edge of the bank.