Patent ID: 7936321

Claim:
An organic electroluminescence display comprising: a pixel unit to display an image, the pixel unit comprising pixels, a data driving unit to connected to the pixels to generate display signals in the pixels; and a scan driving unit to generate a current corresponding to the display signals in the pixels; wherein the data driving unit comprises: a first switch unit to select a first reference voltage to correspond to a data signal; a second switch unit to select a second reference voltage to correspond to the data signal; a resistor including a plurality of resistor arrays to receive the first reference voltage and the second reference voltage and to distribute the first reference voltage and the second reference voltage by use of at least two resistances to generate a grey level voltage; a third switch unit to select one resistor array out of the plurality of the resistor arrays to correspond to the data signal and to transmit the first reference voltage and the second reference voltage to the selected resistor array; and a fourth switch unit to output the grey level voltage, generated by the resistor array, to correspond to the data signal, wherein the plurality of resistor arrays comprise resistor arrays connected in parallel, and wherein each resistor array comprises a first resistance and a second resistance connected in series.