There is provided an electronic device having high reliability and high
color reproducibility. A pixel structure is made such that a switching
FET (201) and an electric current controlling FET (202) are formed on a
single crystal semiconductor substrate (11), and an EL element (203) is
electrically connected to the electric current controlling FET (202). The
fluctuation in characteristics of the electric current controlling FET
(202) is very low among pixels, and an image with high color
reproducibility can be obtained. By taking hot carrier measures in the
electric current controlling FET (202), the electronic device having high
reliability can be obtained.