| 摘要 |
A display device in accordance with the present invention changes to Vc the voltage of a terminal of a capacitor C2 the other terminal of which is connected to the gate of a driver TFT Q1. Thus, a desired voltage Vda is fed from a source line Sj to the drain of the driver TFT Q1 so as to adjust the threshold voltage Vth of the driver TFT Q1. The device then changes the voltage of the terminal of the capacitor C2 to Va to render the gate voltage of the driver TFT Q1 Vda-Vth-Vc+Va. A power supply voltage Vp is fed from the source of the driver TFT Q1.
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