Patent ID: 7317205

Claim:
A light emitting device comprising: at least one pixel formed on an insulating surface, the pixel comprising: a light emitting element comprising an anode, a cathode, and a light emitting layer including an organic compound; and at least first and second thin film transistors, wherein the first thin film transistor is electrically connected to the anode or the cathode, wherein the first and second thin film transistors have the same channel length direction, wherein the channel length direction of the first and second thin film transistors is the same as a scanning direction of laser light irradiated to semiconductor layers of the first and second thin film transistors, wherein the first and second thin film transistors include crystals grown continuously in the scanning direction of the laser light, and wherein the second thin film transistor comprises a source region and a drain region one of which is electrically connected to a gate electrode of the first thin film transistor.