Patent ID: 7928654

Claim:
A light emitting device comprising: a first substrate; a thin film transistor over the first substrate; a first interlayer insulating film formed over the thin film transistor; a source or drain electrode formed on the first interlayer insulating film; a light emitting element formed over the first interlayer insulating film; a second interlayer insulating film formed over the first interlayer insulating film; and a second substrate provided over the light emitting element, wherein a side surface of the first interlayer insulating film is tapered at a region in which the first and second substrates are fixed to each other with a sealing material, wherein the side surface of the first interlayer insulating film is covered and in contact with a first protective film, wherein a side surface of the first protective film is covered with the second interlayer insulating film, wherein a side surface of the second interlayer insulating film is covered and in contact with a second protective film, wherein the sealing material covers the side surface of the first interlayer insulating film and the side surface of the second interlayer insulating film at the region, and wherein the first protective film is the same material as the source or drain electrode.