DISPLAY DEVICE, OLED PANEL, DEVICE AND METHOD FOR CONTROLLING THIN FILM TRANSISTOR, AND METHOD FOR CONTROLLING OLED DISPLAY

摘要

PROBLEM TO BE SOLVED: To reduce a plus shift of threshold voltage (Vth) generated in a thin film transistor when driving OLED by the thin film transistor.

SOLUTION: An increase component of the threshold voltage (Vth) is removed by simultaneously switching on-off the gate voltage and drain voltage by an amorphous silicon TFT as a transistor for driving the OLED (Organic Light Emitting Diode). Namely, the OLED display 10 is provided with a driving circuit 20 for driving the OLED by the amorphous silicon TFT, and a supply line driver 14 for switching off the voltage to be supplied to the drain electrode in the amorphous silicon TFT when switching on-off the gate voltage to the gate electrode in the amorphous silicon TFT of the driving circuit 20.

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