of a signal of fig6 in the organic electroluminescence display according to the second embodiment the pre charge signal of the pre charging block and the initialization voltage outputting circuit of the first driving unit in the first embodiment can be eliminated similar portions of the first and second embodiments will be briefly described a plurality of signal lines 340 arranged on a substrate in a longitudinal direction and a plurality of gate lines gl 31 to gl 3 m arranged in a transverse direction are crossed perpendicularly to define a plurality of pixels p 31 the pixels p 31 are arranged in plural number on the substrate along the gate lines gl 31 to gl 3 m each pixel p 31 is provided with a thin film transistor not shown electrically connected to the gate lines gl 31 to gl 3 m and the signal lines 340 when a second driving unit 320 sequentially outputs scanning signals gs 41 to gs 4 m to the gate lines gl 31 to gl 3 m the thin film transistors of the pixels p 31 connected to the corresponding gate lines gl 31 to gl 3 m to which the scanning signals gs 41 to gs 4.