Patent ID: 7551151

Claim:
An electronic circuit for driving a current driven element; a first transistor that has a first gate, a conduction state of the first transistor determining a current level of a driving current supplied to the current driven element; a second transistor that has a second gate; a capacitor that is coupled to the first gate and the second gate; a third transistor that has a third gate, the third transistor being disposed between the first gate and a first drain of the first transistor, the third transistor electrically connecting the first gate to the first drain during at least a part of a first period in which at least a part of a programming current determining a gate voltage of the first gate flows through the first drain and a first source of the first transistor during at least a part of the first period; a fourth transistor that has a fourth drain, a fourth source, and a fourth gate, the fourth transistor being disposed between the second gate and a second drain of the second transistor, the fourth transistor electrically connecting the second gate to the second drain during at least a part of the first period; the third transistor and the fourth transistor being controlled by an identical signal, at least a part of the programming current flowing through the second transistor during at least a part of the first period; and a reproduction current whose level corresponds to the gate voltage of the first gate determined during the first period flowing through the first transistor during at least part of a second period.