Patent ID: 7592975

Claim:
A display device comprising: a pixel comprising: a light-emitting element; a driving transistor; an AC transistor; a first path for supplying a forward current to the light-emitting element; and a second path for supplying a reverse current to the light-emitting element, wherein the light-emitting element comprises a pixel electrode and an opposing electrode, wherein one of a source electrode and a drain electrode of the driving transistor is connected to the pixel electrode of the light-emitting element, wherein one of a source electrode and a drain electrode of the AC transistor is connected to the pixel electrode of the light-emitting element, wherein the driving transistor is disposed in the first path and the AC transistor is disposed in the second path, wherein switching between the first path and the second path is controlled by using the driving transistor and the AC transistor, and wherein the AC transistor is stopped after the display device is mounted on an electronic appliance.