Patent ID: 6919871

Claim:
A light emitting display comprising: a display panel on which are formed a plurality of data lines-for transmitting a data current that displays video signals, a plurality of scan lines for transmitting a select signal, and a plurality of pixel circuits formed at a plurality of pixels defined by the data lines and the scan lines, wherein at least one pixel circuit includes: a light emitting element for emitting light corresponding to an applied current; a first transistor, having first and second main electrodes and a control electrode, for supplying a driving current for the light emitting element; a first switch for diode-connecting the first transistor in response to a first control signal; a first storage unit for storing a first voltage corresponding to a threshold voltage of the first transistor in response to a second control signal; a second switch for transmitting a data signal from a data line in response to the select signal from the scan line; a second storage unit for storing a second voltage corresponding to the data current from the first switch; and a third switch for transmitting the driving current from the first transistor to the light emitting element in response to a third control signal; wherein a third voltage determined by coupling of the first and second storage units respectively storing the first and second voltages is applied to the first transistor to supply the driving current to the light emitting element.