A light-emitting device is produced at a decreased cost by inspecting
defects in the pixels in the step of fabrication. TFTs possessed by the
pixels on the element substrate and TFTs possessed by the peripheral
drive circuits are inspected by using the inspection device to detect
defects in a step in a process for finishing the light-emitting device.
This makes it possible to decrease the loss that results when the
defective products are processed through up to the final step, and to
improve the yield by repairing the defective products in a step of
repairing.