Patent ID: 8477084

Claim:
An organic electroluminescence display, comprising: a plurality of a first to a n th data lines (DL 1 ˜DLn) and a first to a m th gate lines (GL 1 ˜GLm) arranged on a substrate; a plurality of signal lines arranged on the substrate; a plurality of pixel regions defined by the gate lines and the signal lines; switching elements provided in the pixel regions, respectively, and electrically connected to the signal lines and the gate lines; a plurality of switching blocks disposed in the signal lines to open and close an electrical connection between the signal lines and the pixels, each switching block including a plurality of first switches; a second driving unit for causing the switching elements connected to the corresponding gate lines conductive by outputting scanning signals to the gate lines; a first driving unit which outputs a first control signal to a pre-charging unit for each horizontal period before the second driving unit outputs the scanning signals, and outputs a second control signal to cause the switching blocks conductive sequentially to output image signals to the data lines; and wherein the pre-charging unit is directly connected to the signal lines and the first driving unit, and the first driving unit supplies a set voltage to the signal lines according to the first control signal of the first driving unit, wherein the set voltage is applied to the signal lines before a scanning signal is applied to the gate lines, wherein the plurality of switching blocks are connected to the pre-charging unit and to all of the data lines such that the plurality of first switches are connected to the data lines; wherein the data lines and the gate lines are parallel each other, the signal lines being perpendicular to the gate lines, the number of the signal lines connected to each of switching blocks being same as the number of the data lines, each switching block including the plurality of first switches, each switching block being respectively connected to all of the data lines (DL 1 ˜DLn) respectively, and the pre-charging unit includes a plurality of second switches connected respectively to the plurality of signal lines, wherein the first switches of one switching block are simultaneously turned on and the plurality of switching blocks are successively operated, wherein the first switches of one switching block are disposed between the pre-charging unit and the signal lines, a total number of the first switches are equal to a total number of the second switches, wherein the first driving unit is connected to the first to the n th data lines (DL 1 ˜DLn) and supplies the second control signal to the plurality of switching blocks.