Image display device and driving method thereof

A method of driving an image display device comprising:

• a source signal line driver circuit;
• a gate signal line driver circuit;
• a plurality of pixel electrodes, each pixel electrodes located in each region at which a plurality of source signal lines and a plurality of gate signal lines intersect;
• and a plurality of switching elements for driving the pixel electrodes;
• wherein:
• the source signal line driver circuit has a plurality of D/A converter circuits, each D/A converter circuits converting a digital image signal into an analog image signal, and a plurality of source line selection circuits;
• each source line selection circuits selects the source signal line corresponding to the digital image signal, from among the plurality of source signal lines, synchronously with the timing at which the digital image signal is input to the D/A converter circuit;
• and
• the analog image signal output from each D/A converter circuit is written out to the selected source signal line.

An image display device comprising:

• a source signal line driver circuit connected source signal lines;
• a gate signal line driver circuit connected gate signal lines;
• a plurality of pixel electrodes in pixel array portion, each pixel electrodes located in a region where the each source signal lines and the each gate signal lines intersect;
• wherein the source signal line driver circuit comprises:
• a plurality of D/A converter circuits, each D/A converter circuits converts a digital image signal into an analog image signal wherein the D/A converter circuit drives at least one source signal lines;
• a plurality of source line selection circuits selecting source signal line wherein each source line selection circuits selects the source signal line corresponding to the digital image singal with the timing at which the digital image signal to the D/A converter circuit;
• a first system and a second system, each systems composed of a plurality of gray-scale electric power supply lines, wherein the first system drives only odd numbered source signal lines, and the second system drives only even numbered source signal lines;
• and
• a plurality of connection switching switches, each connection switching switches connected each D/A converter circuits, which connects the DIA converter circuit and the first system during a period of selected odd numbered source signal lines, or the second system during a period of selected even numbered source signal lines.