Patent ID: 8513678

Claim:
A light-emitting device comprising: a substrate; a silicon oxide layer over the substrate; a nitrogen-containing layer over the silicon oxide layer; an oxide film over the nitrogen-containing layer, the oxide film comprising a halogen element; a pixel portion comprising: a first transistor comprising a first semiconductor layer comprising a first channel formation region, a first impurity region and a second impurity region between the first impurity region and the first channel formation region wherein a concentration of impurity elements in the second impurity region is lower than a concentration of impurity elements in the first impurity region; a light-emitting element electrically connected to the first impurity region, the light-emitting element being configured to emit white light; a black matrix over the first transistor, the black matrix overlapping with at least a part of the first semiconductor layer; and a color filter over the light-emitting element; and a driver circuit configured to output an analog video signal into a gate electrode of the first transistor such that an amount of a current flowing in the light-emitting element is changed in accordance with a potential applied to the gate electrode of the first transistor, the driver circuit comprising a second transistor comprising a second semiconductor layer comprising a second channel formation region, wherein each of the first semiconductor layer and the second semiconductor layer is a single-crystal semiconductor layer provided over the substrate with the silicon oxide layer, the nitrogen-containing layer and the oxide film provided therebetween.