Patent ID: 7663580

Claim:
A driving device for a light emitting display which includes a plurality of scan lines for transferring a selection signal, a plurality of data lines for transferring a precharge current and a data current, and a plurality of pixels defined by the plurality of scan lines and the plurality of data lines, the driving device comprising: a first driver for sequentially outputting a first signal, the first signal having a first integer multiple of first pulses and being shifted by a first period; a second driver for sequentially outputting a second signal, the second signal having a second pulse and being shifted by a second period; and a third driver for sequentially outputting the selection signal in response to the first signal and the second signal, the selection signal having a second integer multiple of third pulses corresponding to at least one of the first integer multiple of first pulses, and having a fourth pulse corresponding to the second pulse; wherein the fourth pulse has a wider width than the third pulse; wherein a period during which the fourth pulse of the selection signal is applied to a first scan line among the plurality of scan lines includes a fourth period during which the third pulse of the selection signal is applied to a second scan line among the plurality of scan lines and a fifth period during which the selection signal having a different level from the third pulse is applied to the second scan line; wherein the data current corresponding to a pixel coupled to the first scan line is applied to a data line among the plurality of data lines during the fifth period; and wherein the precharge current having a greater magnitude than the data current is applied to the data line during the fourth period.