DRIVING APPARATUS FOR DISPLAY

摘要

PURPOSE: A display driving apparatus is provided to minimize power consumption, chip area, and driving delay and to eliminate the under-damping phenomenon of a driving current. CONSTITUTION: A display driving apparatus comprising: a current digital/analog converter(800) generating a data current corresponding to an input of digital data; a data line connected to a pixel circuit requiring data writing on a matrix array of a display panel; an adjacent data line located adjacent to the data line; a current mirror(810) feed backing an excessive charging current generating due to parasitic capacitance of the adjacent data line as a charging current for charging parasitic capacitance of the data line; a current output unit(820) connected to the current mirror and comprising a first driving transistor unit for driving the data line, and a second driving transistor unit for driving the adjacent data line; a source follower driving the current output unit according to an output node voltage of the current digital/analog converter; and a first constant current source discharging parasitic capacitance excessively charged in the data line and the adjacent data line.