Gate driver without pre-charging capacitor in gate driving circuit

A display panel driving apparatus comprising:

• a liquid crystal display panel that comprises a plurality of gate lines and a plurality of data lines and that displays an image in pixel units having a liquid crystal display device, wherein the gate lines are substantially perpendicular to the data lines, and the image corresponds to a data voltage applied to the data lines according to a gate driving signal applied to the gate lines;
• a signal control unit that generates gate line selection data for selecting the gate lines, image data to be displayed by the liquid display device, a pre-charging control signal that controls an off-state of non-selected gate lines, and a hold control signal;
• a gate driver that decodes the gate line selection data, that generates a gate line selection signal, that generates a gate driving signal in each of a pre-charging phase and a driving phase in response to the gate line selection signal and the pre-charging control signal, wherein in a time period of the driving phase in which a gate line is not selected, a node that has been floated is held at a target voltage level in response to the hold control signal generated based upon a timing relationship between the pre-charging control signal and the gate line selection signal;
• and
• a data driver that generates a data voltage corresponding to the image data and that applies the data voltage to a corresponding data line,
• wherein the gate driver comprises:
• a first switching circuit that generates a gate driving signal in response to the gate line selection signal and the pre-charging control signal in each of a first node and a second node, wherein the first node is coupled to an input of the first switching circuit and the second node is determined based upon the voltage of the first node;
• and
• a second switching circuit that electrically connects the first node to a first voltage supply terminal for a time period in which the first node is in a floating state based upon the hold control signal and the voltage level of second node,
• wherein the second switching circuit comprises:
• a first switching device that switches according to the voltage level of the hold control signal;
• and
• a second switching device that switches according to the voltage level of the second node, and
• wherein the first switching device and the second switching device are connected and arranged in series between the first node and the first voltage supply terminal.