Patent ID: 7773056

Claim:
A light emitting display comprising: an image display unit coupled to a plurality of scan lines, a plurality of data lines, a plurality of emission control lines, and a plurality of first power supply lines, the image display unit comprising a plurality of pixels in regions defined by the scan lines and the data lines, wherein two adjacent pixels among the plurality of pixels are coupled to one of the scan lines and one of the first power supply lines between the two adjacent pixels, and each of the two adjacent pixels comprises: a first organic light emitting diode and a second organic light emitting diode; a driving circuit for driving the first organic light emitting diode and the second organic light emitting diode; and a switching circuit coupled between the driving circuit and the first organic light emitting diode and the second organic light emitting diode for sequentially controlling the driving of the first organic light emitting diode and the second organic light emitting diode, wherein the driving circuit comprises: a first transistor for selectively supplying a current to the first organic light emitting diode or the second organic light emitting diode in response to receiving a first voltage from the one of the first power supply lines at its gate electrode; a second transistor for selectively transmitting a data signal to a first electrode of the first transistor in response to a first scan signal; a third transistor for selectively diode-coupling the first transistor in response to the first scan signal; a capacitor for storing the first voltage applied to the gate electrode of the first transistor while a data voltage is applied to the first electrode of the first transistor, and for maintaining the voltage at the gate electrode of the first transistor at the first voltage during a period when the first organic light emitting diode or the second organic light emitting diode emits light; a fourth transistor for selectively transmitting an initializing signal to the capacitor in response to a second scan signal; a fifth transistor for selectively transmitting power from the one of the first power supply lines to the first transistor in response to a first emission control signal; and a sixth transistor for selectively transmitting power from the one of the first power supply lines to the first transistor in response to a second emission control signal, wherein a total number of the first power supply lines in the light emitting display is about half a total number of the data lines in the light emitting display, and wherein the switching circuit comprises: a seventh transistor for transmitting the current to the first organic light emitting diode in response to the first emission control signal; and an eighth transistor for transmitting the current to the second organic light emitting diode in response to the second emission control signal.