Patent ID: 8310469

Claim:
A display device comprising: a light emitting element that emits light having an intensity dependent on a magnitude of a driving current; a capacitor connected between a first node and a second node; a driving transistor outputting the driving current and having an input terminal connected with a first voltage, an output terminal, and a control terminal connected with the second node; a first switching unit connecting the first node to one of a data voltage and a second voltage; a second switching unit that switches a connection between the second voltage and the second node; and a third switching unit connecting the output terminal of the driving transistor to one of the second node and the light emitting element, wherein the first switching unit comprises: a first switch that switches a connection between the data voltage and the first node; and a second switch that switches a connection between the second voltage and the first node, wherein the second switching unit comprises a third switch, wherein the third switching unit comprises: a fourth switch that switches a connection between the second node and the output terminal of the driving transistor; and a fifth switch that switches a connection between the light emitting element and the output terminal of the driving transistor, wherein the first switch, the third switch and the fourth switch are field effect transistors including a first channel type, and the second switch, the fifth switch and the driving transistor are field effect transistors including a second channel type, and the second channel type being different from the first channel type, wherein the first, second, fourth, and fifth switches are controlled by a first control signal, and wherein the third switch is controlled by a second control signal different from the first control signal, and input terminals of the third switch and driving transistor are connected to different voltage sources.