Patent ID: 8629440

Claim:
A light emitting device comprising: a switching transistor, a source signal line, and a gate signal line, wherein a gate of the switching transistor is electrically connected to the gate signal line, and wherein one of a source and a drain of the switching transistor is electrically connected to the source signal line; a light emitting element including an electrode; a wire including a first region, a second region and a third region, wherein the second region is interposed between the first region and the third region, and wherein a longitudinal width of the second region is smaller than a longitudinal width of the first region and a longitudinal width of the third region; a driving transistor including an active layer; and a power supply line electrically connected to the active layer, wherein the other of the source and the drain of the switching transistor is electrically connected to a gate of the driving transistor, wherein the wire and the active layer extend in one same direction with each other when viewed from a top surface, wherein the first region of the wire is electrically connected to the active layer, and wherein the third region of the wire is electrically connected to the electrode of the light emitting element.