摘要 |
PROBLEM TO BE SOLVED: To provide a display device and a driving method thereof which prevent variations in current value due to the characteristic variations and deterioration of light-emitting elements.SOLUTION: This invention provides a method of driving a display device including a transistor, a capacitive element, a light-emitting element 108, a source signal line 101, and a current supply line 107, the light-emitting element emitting light with brightness corresponding to the current value decided by the transistor, the method including the operations for: inputting a first potential to the source of the transistor; inputting a video signal to the gate of the transistor from the source signal line; and holding a potential difference decided according to the first potential and the video signal in the capacitive element and changing the potential of the source of the transistor into a second potential. The capacitive element holds the gate-source voltage of the transistor, so that even when the potential of the first electrode of the transistor is changed, the gate-source voltage is made constant to make the current value constant. |