Patent ID: 7928945

Claim:
A display device comprising: a first line to which an analog signal is inputted; a second line; a capacitor comprising first and second electrodes; a light emitting element; a first transistor electrically connected to the first line and the second line; a second transistor comprising a gate electrically connected to one of the first and second electrodes of the capacitor and one of source and drain electrically connected to the light emitting element; and a third transistor comprising a gate electrically connected to a third line and one of source and drain directly connected to one of the first and second electrodes of the capacitor; a fourth transistor comprising a gate electrically connected to a fourth line, one of source and drain electrically connected to the other one of the first and second electrodes of the capacitor; a first shift register for controlling a selection of the first line and the third line; a second shift register for controlling a selection of the fourth line; and a third shift register for controlling a selection of the second line, wherein the other one of the source and the drain of the third transistor is connected to the other one of the first and second electrodes of the capacitor through only the source and the drain of the fourth transistor.