Patent ID: 7592982

Claim:
A display device comprising a plurality of scan lines for transmitting select signals, a plurality of data lines for transmitting data signals, and a plurality of pixel circuits coupled to the scan lines and the data lines, wherein at least one of the pixel circuits comprises: a capacitor for charging a voltage which corresponds to one of the data signals transmitted from a corresponding one of the data lines; a driving transistor for outputting a current corresponding to the voltage charged in the capacitor; a plurality of emit elements for emitting a light corresponding to the current outputted from the driving transistor; and a plurality of emit control transistors coupled between the driving transistor and the plurality of emit elements, wherein the emit control transistors comprise a plurality of semiconductor layers having inner resistances that are substantially the same as each other, wherein a length of a first semiconductor layer of the plurality of semiconductor layers is different than a length of a second semiconductor layer of the plurality of semiconductor layers, and wherein each of the inner resistances corresponds to a ratio of a length and a width of a respective one of the semiconductor layers.