| 摘要 |
A drive circuit is provided with a source follower circuit 2 consisting of an NMOS-FET connected to the anode side of light emitting device 1 and adapted to directly drive the light emitting device 1, a source follower circuit 3 consisting of a PMOS-FET a gate terminal of which is connected to a source terminal of the source follower circuit 2 consisting of the NMOS-FET, and a PMOS-FET 4 adapted to supply an electric current to the source follower circuit 3 consisting of the PMOS-FET.
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