| 摘要 |
<p>A pixel circuit including at least a light emitting element (OLED), and a thin film transistor (TFT1) that supplies to the light emitting element (OLED) a first current controlling a gray scale according to luminance-current characteristics of the light emitting element (OLED), wherein the thin film transistor (TFT1) has a back gate electrode, at least a driving period in which the thin film transistor (TFT1) supplies the first current to the light emitting element (OLED), and a writing period in which a second current is written to the thin film transistor (TFT1) before the driving period in order to pass the first current to the thin film transistor (TFT1) during the driving period are included, and by changing voltages which are applied to the back gate electrode in the driving period and the writing period, current capability to a gate voltage of the thin film transistor (TFT1) is made to differ.</p> |
