Touch panel liquid crystal display device and method of driving the same

A touch panel liquid crystal display (LCD) device, comprising:

• a plurality of touch electrodes arranged on a panel in a matrix form;
• and
• a plurality of multiplexers configured to drive the plurality of touch electrodes,
• wherein the plurality of multiplexers include
• at least one first multiplexer configured to output a touch sensing signal through all output channels thereof,
• second multiplexers adjacent to the at least one first multiplexer and configured to output a load free driving (LFD) signal through all output channels thereof, and
• third multiplexers configured to output a ground signal or a floating signal through all output channels thereof.

A method of driving a touch panel liquid crystal display (LCD) device including a plurality of touch electrodes arranged on a panel in a matrix form and a plurality of multiplexers configured to drive the plurality of touch electrodes, the method comprising:

• applying a touch sensing signal to a plurality of touch electrodes of at least one first vertical line;
• applying a load free driving (LFD) signal to a plurality of touch electrodes of second vertical lines adjacent to the at least one first vertical line;
• and
• grounding or floating another plurality of touch electrodes.

A method of driving a touch panel liquid crystal display (LCD) device including a plurality of touch electrodes arranged on a panel in a matrix form and a plurality of multiplexers configured to drive the plurality of multiplexers, the method comprising:

• applying a touch sensing signal to a plurality of touch electrodes of at least one first horizontal line;
• applying a load free driving (LFD) signal to a plurality of touch electrodes of second horizontal lines adjacent to the at least one first horizontal line;
• and
• grounding or floating another plurality of touch electrodes.