Patent ID: 7057589

Claim:
An organic electroluminescence display comprising: a plurality of data lines transmitting data voltages; a plurality of scan lines transmitting selection signals; a plurality of pixel circuits provided in pixel areas defined by two adjacent data lines and two adjacent scan lines, and having first switching elements responding to the selection signals applied to the scan lines to transmit the data voltages applied to the data lines, first thin film transistors supplying currents to organic electroluminescence devices in correspondence to the data voltages inputted to gates thereof through the first switching elements, capacitors for maintaining the data voltages during a certain time, and second switching elements applying first precharge voltages to the capacitors in response to control signals while the selection signals are applied to previous scan lines; a data driver dividing the data lines into a plurality of groups to selectively apply the data voltages to the respective groups by group unit; and a demultiplexer applying the data voltages selectively applied from the data driver to corresponding data lines and applying second precharge voltages based on the first precharge voltages to the data lines of at least one group out of the groups before the selection signals for selecting scan lines are applied to the scan lines connected to the pixel circuits.