Patent ID: 7091938

Claim:
A display device comprising: a plurality of pixels and a plurality of signal lines to which current signals are input; and a multi-drain element, a first TFT, a capacitor element, an EL element that emits light, and a second TFT connected in series with the EL element in each of the plurality of pixels, wherein a gate electrode of the second TFT is connected to a gate electrode of the first TFT, wherein one electrode of the capacitor element is connected to the gate electrode of the first TFT, wherein the multi-drain element comprises an active layer adjacent to an insulating surface, an insulating film adjacent to the active layer and a gate electrode adjacent to the insulating film, and the active layer comprises at least one channel-forming region and impurity regions of a number of n (n is a natural number of not smaller than 3), wherein a first terminal of the first TFT, the gate electrode of the first TFT, and one of the plurality of signal lines are electrically connected to each of the impurity regions, respectively.