Patent ID: 7795627

Claim:
A semiconductor device comprising: a display portion including a plurality of unit cells which are arranged in matrix over a substrate having an insulating surface, wherein each of a first unit cell and a second unit cell in the plurality of unit cells, which are next to each other and arranged in a row direction, has a first electrode, wherein a partition wall is formed over the first electrodes of the first unit cell and the second unit cell, wherein each of the first unit cell and the second unit cell has a light emitting layer over the first electrode and the partition wall and a second electrode over the light emitting layer, wherein the first unit cell includes a semiconductor layer of a first switching element electrically connected to the first electrode of the first unit cell, and includes a semiconductor layer of a second switching element electrically connected to the first electrode of the second unit cell, and wherein a light emitting region surrounded by the partition wall, which is included in the first unit cell, is substantially the same as a light emitting region surrounded by the partition wall, which is included in the second unit cell.