DRIVING METHOD FOR TRANSISTOR, DRIVING METHOD FOR SHIFT REGISTER, AND SHIFT REGISTER FOR IMPLEMENTING SAME

摘要

PROBLEM TO BE SOLVED: To provide a driving method for an amorphous silicon thin-film transistor and a driving method for a shift register that prevent current driving capability from becoming lower, and a shift register for implementing the same.

SOLUTION: In the driving method for a transistor which has a drain, a source, and a gate, a 1st source voltage is applied to the drain, a 2nd source voltage is applied to the source and a 3rd source voltage which swings at a fixed period in order to lower a threshold voltage having risen owing to deterioration of the transistor below a threshold voltage at which the transistor malfunctions is applied to the gate. Thus, AC electric power source which swings at a fixed period is applied to the gate of the transistor to maintain normal current driving capability even if the transistor deteriorates.

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