Patent ID: 7714811

Claim:
An electroluminescent device comprising: a plurality of scan lines in a first direction; a plurality of data lines in a second direction, the first direction being different from the second direction; and a plurality of sub-pixels, each sub-pixel including a corresponding scan line and a corresponding data line; a precharge controlling circuit which transmits a precharge controlling signal based on display data; and a precharge circuit which applies a precharge current corresponding to the display data and a scan line resistance to the data lines based on the precharge controlling signal transmitted from the precharge controlling circuit, wherein, for at least one sub-pixel coupled to a first data line, the first data line is pre-charged to a first voltage for a prescribed gray scale level and for at least one other sub-pixel coupled to the-first data line, the first data line is pre-charged to a second voltage for the prescribed gray scale level, wherein the first and second voltages are different.