US Patent 7489290 Light emitting display device and driving method thereof

A light emitting display device includes a data line, first and second signal lines, a pixel circuit, and a data driver for supplying a precharge current to the data line according to a first control signal and supplying a data current to the data line according to a second control signal. The data line can be precharged by driving at least one pixel circuit adjacent to a reference pixel circuit in addition to the reference pixel circuit to which the data current will be supplied when the precharge current is supplied to the data line.